Sunday, December 21, 2025

Return to Kauai

Saturday, December 20, 2025

After waking up at 05:00, I showered and dressed. Our Southwest Airlines Flight #4736 (SJC to HNL) was originally scheduled to depart at 07:00 but was delayed for one hour (new departure time was 08:06).

I ordered UberX at around 06:00, and we arrived at the San Jose Airport around 06:30. As we were a bit sleepy and tired (from waking up so early), Inna stopped by Peet's Coffee to purchase two espressos and plain Greek yogurt (for breakfast).

Our plane departed on time, at 08:16. The flight was smooth, with some occasional turbulence before landing in Honolulu. 

During the flight, I listened to my Audible book - The Brothers Ashkenazi by I. J. Singer, and also started reading 44 Scotland Street by Alexander McCall Smith on my new Colorsoft Kindle.

We landed around 12:00 HST, a bit hungry. While Southwest Airlines gave us some snacks on the flight (peanuts, crackers, and coffee), they were not sufficient.

In Honolulu, we stopped by the Lahaina Chicken Company and purchased freshly baked chicken (with potatoes and green beans).  The chicken was acceptable, as were the mashed potatoes, but nothing special (mediocre). Fortunately, Inna brought some cash, as these eateries (and many others) were not accepting credit cards due to an outage.

In Honolulu, we boarded Southwest Airlines Flight #558 from Honolulu (HNL) to Lihue (LIH) at 13:00, departing on time at 13:30. The flight was a short twenty-minute journey, and we landed in Lihue at 14:00.

We made it to Kauai! 😀

In Lihue's airport, we walked to the Car Rental stand, where we boarded an Avis Car Rental mini-bus to take us to the Avis Car Rental nearby.

While the Avis car check-out was quite fast, we had to wait for our white Kia Forte to be cleaned and fueled.  It took an additional 30 minutes before we could start driving. The Kia was a bit rusted (with some dents). I expected a better-maintained vehicle from Avis.

Our first stop was the nearby Costco, where we purchased some groceries for our morning breakfast, including:

  • Organic Greek Yogurt
  • Blueberries
  • Raspberries
  • Blackberries
  • 2 x Taro Chips
  • Honolulu Cookie Company Minibites (Guava)
  • Macademia Nuts
  • Beef Protein Sticks
  • Havarti Cheese
We drove to our Marriott Kauai Beach Club, parking in the free parking lot near the hotel and taking all our luggage to check in. We were assigned room #306 in the Waialeale tower overlooking Kalpaki Beach. We dropped off our luggage and unpacked our suitcases. I assembled my Sonicake Acoustic travel guitar and tuned it, attaching a tuner and wired headphones.

I tried connecting the Nvidia Shield to the LG TV in our room, but it would not connect. I am still unsure what went wrong; perhaps the Nvidia Shield needs to be replaced.

Inna had made dinner reservations at Duke's Canoe Club for 17:45, and we walked there. It was already decorated for Christmas, and there was a musician getting ready to play.

We were seated upstairs and ordered the following items from the menu:

  • Appetizer: Macadamia Nut Hummus
  • Drinks: Duke' Blone Ale, Sparkling Pellegrino
  • Boris: Coconut Braised Seafood (shrimp, fish, lobster)
  • Inna: Macadamia Nut Herb Crusted Mahi-mahi
Although it was hot and humid, it was still quite pleasant. We really enjoyed watching the gorgeous sunset and listening to the musician playing acoustic guitar and flute, with well-known songs like Margaritaville (Jimmy Buffett).

After dinner, we stopped by the local ABC Store to pick up bottled water, a stainless-steel water bottle, and a Häagen-Dazs ice cream bar (for me).

Later on, we were able to FaceTime with Alex, who was really enjoying his ongoing stay in Bali. We discussed his plans to extend his stay from December 25 to January 15, to give him more time.

I made some hot chamomile tea, and we enjoyed a few treats with hot tea before going to bed at 21:00.

At midnight, we were woken up to loud music from a neighboring room, and Inna called the hotel to complain. Eventually, the loud music stopped. Thankfully, we were able to fall asleep again.

Sunday, December 21, 2025

I woke at 07:00, hearing my alarm, showered, shaved, and dressed. I decided to practice the guitar for a 15-minutes before heading to purchase coffee at the nearby Jammin' Banana Bakery & Cafe. I ordered two cappuccinos (which took 10-minutes to prepare).

Once I returned to our room, Inna had already started preparing breakfast: Greek yogurt with granola and berries (raspberries, blackberries, blueberries). We saw on the balcony, eating our delicious breakfast, overlooking the beautiful Kalapaki Beach.

I stopped by the Kauai Beach Boys to purchase a one-week rental of SUPs ($275/week). I planned to SUP surf every day.

I rented a 9'8" NSP 160-liter SUP and paddled out into the bay. I was the only SUP surfer for an hour (there was an electric wing foiler out), and I enjoyed the solitude (and lack of competition for waves). I managed to catch many waves, and the conditions were much better than I expected (after checking out Surfline.com, which indicated poor conditions). I surfed on my NSP 9'8" SUP for two hours (and got quite tired at the end). At around 11:00, I started to get tired (and the bay started to get busy with surf lessons and other surfers and paddleboarders) and decided to end my session.

I paddled back and returned my paddleboard. I went to look for Inna, who was doing Yoga on the beach. I decided to relax and read my Kindle Colorsoft, returning to 44 Scotland Street by Alexander McCall Smith.

For lunch, I decided to drive to Fish Express to purchase freshly prepared poke. I selected the following:
  • Boris: White rice with 3 scoops: Salmon, Ahi with Maui Onion, Ahi with Spices, and Crabs
  • Inna: Organic greens with 3 scoops: Salmon, Ahi with Maui Onion, Ahi with Crabs
Our poke was excellent, and we really enjoyed our lunch on the balcony.

After lunch, we decided to walk to Jammin' Banana Bakery & Cafe for a few coffee drinks (we were feeling a bit sleepy). We ordered two cappuccinos.

We returned to our room, where I planned to rest for a bit, while Inna returned to the beach.

I napped for an hour and then played my Sonicake Guitar for 30 minutes, focusing on J.S. Bach. Around 16:00, I returned to the bach and waited for Inna to finish her swim. We then swam for another 30 minutes in the Williwilli Bay. The ocean water felt pleasantly cool, and we thoroughly enjoyed our swim.

For dinner, Inna had made reservations at Naisla Kitchen & Cocktails for 18:00. As she wanted to take a shower after the ocean swim, we called Naisla to postpone the dinner to 18:15.

After a short 15-minute drive, we parked nearby and sat down at a table. We ordered the following items:
  • Appetizer: Local Lettuce Salad
  • Drinks: Sparkling water
  • Boris: Jidori Chicken
  • Inna: Braised Short Rib
  • Dessert: Coffee Cake
The Local Lettuce Salad was excellent, as was my Jidori Chicken and Inna's Braised Short Rib. The Coffee Cake was delicious, too. Although loud inside, we enjoyed the food here (and will return again).

After dinner, we returned to the Marriott Kauai Beach Club and walked around the property to get a few more steps.


Monday, December 22, 2025

I woke at 07:00 after hearing my alarm. I showered and dressed. I was still not quite rested but felt better than the day before. I purchased two cappuccinos at the nearby Jammin' Banana Bakery & Cafe

Once I returned, Inna had already started preparing breakfast: Greek yogurt with granola and berries (raspberries, blackberries, blueberries). We saw on the balcony, eating our delicious breakfast, overlooking the beautiful Kalapaki Beach.

I rented a 9'8" NSP 160-liter SUP and paddled out into the bay. There were more surfers (and e-foilers out). I managed to catch many waves, and the conditions were much better than I expected. I surfed on my NSP 9'8" SUP for two hours. At around 11:00, I started to get tired (and the bay started to get busy with surf lessons and other surfers and paddleboarders) and decided to end my session.

I paddled back and returned my paddleboard. I went to look for Inna, who was doing Yoga on the beach. I decided to relax and read my Kindle Colorsoft, returning to 44 Scotland Street by Alexander McCall Smith.

We noticed that Ruby Princess docked nearby (probably on a 16-day Hawaiian Cruise from San Francisco), and the beach was full of blue towels (Ruby Princess' cruisers). Some of them were a bit loud and obnoxious, and I didn't enjoy reading my book in solitude.

I had some light swelling in my two hands and decided to stop by the local pharmacy (CVS/Longs Drugs) to purchase Voltaren (Diclofenac Sodium Topical cream). Inna also wanted some more ThinkSport suntan lotion (but CVS did not carry it). Afterwards, I drove to Fish Express to purchase freshly prepared poke. I selected the following:
  • Boris: White rice with 3 scoops: Salmon, Ahi with Maui Onion, Ahi with Spices, and Crabs
  • Inna: Organic greens with 3 scoops: Spicy Ahi, Ahi with Maui Onion, Ahi with Crabs
After lunch, we decided to walk to Jammin' Banana Bakery & Cafe for a few coffee drinks (we were feeling a bit sleepy). We ordered two cappuccinos.

Since the waves looked very nice, I decided to SUP surf for another hour. I had a fantastic session and caught many excellent waves. I had a few really long rides. It was so much fun!

At around 15:45, I paddled to the shore and dropped off my board. I joined Inna on the beach, and we decided to swim for 30-minutes in Nawilliwilli Bay. The swim was wonderful and refreshing.

For dinner, Inna had made reservations at Hualani (nearby) for 17:45. It was a short, 5-minute drive there from our Marriott Beach Club.

After having our car parked by a valet, we walked downstairs to the Hualani restaurant and sat down at a cozy table overlooking the garden and the ocean. A guitar/saxophone player was entertaining everyone with his renditions of Hawaiian and Country standards, such as "Amarillo by Morning" by George Strait, "Wonderful Tonight" by Eric Clapton, "Island Style" by John Cruz, and "Over the Rainbow/What a Wonderful World" by IZ. The musician played acoustic guitar, ukulele, saxophone, and flute.

Regarding “ukulele”:
  • In 1879, Portuguese immigrants from Madeira and the Azores islands arrived in Hawaii to work on sugar plantations.
  • They brought small guitar-like instruments, especially the machete, braguinha, and cavaquinho.
  • Hawaiian craftsmen adapted these instruments, resulting in a new local version.
  • The word ukulele roughly translates to “jumping flea” in Hawaiian.
  • One popular explanation is that it describes how a player’s fingers move quickly over the strings.
We looked at the menu and ordered the following items:
  • Drinks: Black Limousine Lager (dark beer)
  • Drinks: Hokuala Farm Cocktail (margarita)
  • Appetizer: Honeycomb Salad, Rosemary Ciabatta
  • Boris: Ginger Prawn Fettuccini
  • Inna: Lemongrass-crusted Onaga
The Black Limousine Lager was tolerable (I was expecting a lighter taste). Inna's Hokuala Farm Cocktail was too strong (she was expecting something lighter). Next time, skip the alcoholic drinks. The Honeycomb Salad was delicious, as was the Rosemary Ciabatta. The Ginger Prawn Fettuccini was excellent with large prawns. Inna's Onaga was excellent (a much larger portion than the one at Duke's).

During our dinner, a heavy downpour erupted outside, but it ended as quickly as it began.


Tuesday, December 23, 2025

I woke at 07:00 after hearing my alarm. I showered, shaved, and dressed.  I purchased two cappuccinos at the nearby Jammin' Banana Bakery & Cafe

On Kalapaki Beach, I saw many wing foilers on the water already, due to high tide at 6:00, but the Surfline forecast called for strong, 18-knot easterly winds all day. The water was a little rough with bumps everywhere. It was more difficult to keep standing up with the gusty easterly winds, too.

I rented a 9'8" NSP 160-liter SUP and paddled out into the bay. I managed to catch many waves, despite the rough conditions. I surfed on my NSP 9'8" SUP for 90 minutes. At around 10:40, I started to get tired (and the bay started to get busy with surf lessons and other surfers and paddleboarders) and decided to end my session.

For lunch, I drove to Fish Express to purchase freshly prepared poke. I selected the following pokes.
  • Boris: White rice with 3 scoops of poke: Salmon, Ahi with Maui Onion, Ahi with Spices, and Crabs
  • Inna: Organic greens with 3 scoops of poke: Spicy Ahi, Ahi with Maui Onion, Ahi with Crabs
Inna had made reservations for a Star Dinner Sunset sail to the Na Pali Coast on Captain Andy's Kauai Boat Tours for 14:00. We were warned about heavy traffic and started our drive to Port Allen at 12:45. Usually, the drive is supposed to take 30 minutes, but due to construction on the road (and lane closures), the drive took us one hour. We arrived just in time and were told to wait until 14:00 for the briefing.

At 14:00, we were split into 3 groups (for the 3 catamarans that were being chartered) and assigned to the "Red" group. We were briefed on the safety (life-jackets), dinner time, and the bar (opened on the return leg).

The 65-foot sailing catamaran has 800-hp diesels, which allow it to reach 22+ knots. The engines are very powerful but also very loud (next time, bring earplugs). As we started our cruise, there was some 4-5 foot ocean swell, and the catamaran felt a bit bouncy. Being pressed for time, we never used any sails during the entire cruise.

We found a nice table with seating in the aft section (where the galley was located) and sat there often during the cruise. From there, we enjoyed watching the Kauai coastline, with the crew pointing out the large section owned by the Robinson family (which used to grow sugar on its large sugar plantation but now makes money by leasing it out to the U.S. Navy).

We were offered various drinks. At first, Inna ordered sparkling water with lemon, but later we asked for the signature cocktail - Andy's Sneaky Tiki. The tiki was delicious!
Andy's Sneaky Tiki - Premium light and dark Koloa Rums, tropical fruit purees and a splash of Cacao-flavored Koloa Rum. Sweet, tangy, and subtly spiced.
The Star Dinner menu was as follows:
  • Goat cheese crostini, sundried tomatoes & basil, drizzled with a balsamic reduction. (V)
  • Grilled spicy Hawaiian shrimp appetizer. (PESC) (GF)(DF)
  • Fresh Iwikua Farms organic mixed greens, carrots, cabbage, sweet grape tomatoes & feta cheese, with papaya seed vinaigrette. (V) (GF)
  • 8 oz grilled Filet Mignon, garlic mashed potatoes, grilled seasonal vegetables, and steak butter rosette. (GF)
  • Tangy lime cheesecake with a buttery graham cracker crust topped with velvety whipped cream. (V)
Dinner was excellent, and the crostini, shrimp, greens, and filet mignon were all really delicious.

During the cruise, we spotted humpback whales and could see their spouts. Inna was able to capture a few photos as well.  The crew also spotted bottlenose dolphins, but we did not manage to see them.

The crew also pointed out the landing spot where Captain James Cook first landed in Hawaii at Waimea Bay on the island of Kauai. This was the first recorded contact between Europeans and Polynesians.

  • Date: January 18, 1778
  • Location: Waimea Bay, KauaÊ»i

Cook initially named the islands the Sandwich Islands” after the Earl of Sandwich. Later that voyage, he visited other islands, including HawaiÊ»i Island, where he was killed at Kealakekua Bay in 1779.

The Na Pali Coast was amazing, with jutting, green cliffs strutting majestically into space, like out of some Jurassic Park movie.

We really enjoyed our cruise (but I wished the engines were quieter). We were very fortunate with the weather, as it was raining on Kauai (but not during our cruise).


Links

Tuesday, December 16, 2025

Let's Glow San Francisco

At around 18:00, we started our walk to see Let's Glow San Francisco
This all-ages, family-friendly event runs for 10 nights from December 5–14, 2025. Experience breathtaking animated projections illuminating eight iconic buildings across the city's core, transforming them into colossal, colorful canvases featuring work by 19 artists from around the globe.

Our first stop was at the Hobart Building, which had some of our favorite displays.

Hobart Building
582 Market Street 
Featured Artists:

 



Ferry Building
1 Ferry Building
Featured Artists

101 California Street
Featured Artists
  • Leslie Epsztein
  • Filip Roca

Mechanics Monument Plaza
488 Market Street
Featured Artists

Pacific Exchange
301 Pine Street
Featured Artists:

Transamerica Pyramid Center
545 Sansome Street
Featured Artists:

Paper Tails of San Francisco is a poetic, time-bending journey inspired by the legendary canine duo Bummer and Lazarus, two beloved dogs who roamed San Francisco in the 1860s. Told through layered textures and shifting light, the piece follows Bummer as he steps into an unfolding paper world in search of his long-lost friend. Along the way, the story mirrors the evolution of the city itself and the transformation of one of its most iconic sites: the Transamerica Pyramid.

Here is a short video clip of Paper Tails for San Francisco from SMASH Studio (one of our favorites)!



For dinner, we decided to try the Little Shucker restaurant that Inna had booked for 20:30. After looking at the menu, we ordered the following items:

  • Appetizer: Little Shucker (6 oysters on a half-shell, 4 shrimps, tuna tartare), Bread & Butter
  • Boris: Cup of Tomato Soup, Tuna Melt
  • Inna: Cup of Soup, Rainbow Trout, Stadt Krems Gruner Veltliner wine
  • Dessert: Chocolate Budino

Although we liked the restaurant, it was quite cold inside (the heater was blowing cold air), and we had to keep our jackets on.

We liked the Little Shucker Appetizer and the Rainbow Trout. The 6 oysters on a half-shell were tiny (and very expensive).  All the other portions were also smaller in size. Even the tomato soup portion was minuscule. I felt like I was dining on portions meant for Hobbits.

We rode a Waymo back to the Sutter-Stockton garage, and Inna enjoyed her first time in a self-driving taxi.

Links


Sunday, December 14, 2025

Menorah Lighting at Union Square

We decided to drive over to San Francisco to see the Menorah lighting at Union Square to commemorate the first day of Hanukkah, followed by a stroll to visit the various buildings of Let's Glow SF, followed by dinner at Little Shucker.



We are initially worried about the security and safety after the recent events in Australia:

On December 14, 2025, a devastating terrorist attack occurred during a Hanukkah celebration at Bondi Beach in Sydney, Australia. The incident, which took place during the "Chanukah by the Sea" event, resulted in one of the deadliest mass shootings in Australian history.
The Incident

The Attack: At approximately 6:45 p.m., two gunmen opened fire from a footbridge overlooking Archer Park, where about 1,000 people had gathered for the first night of Hanukkah. The attackers fired over 100 rounds into the crowd.

The Perpetrators: Police identified the attackers as a father and son duo. The 50-year-old father (Sajid Akram) was shot dead by police at the scene. The 24-year-old son (Naveed Akram) was critically wounded and taken into custody.

Motive: Authorities have officially designated the shooting a terrorist incident motivated by antisemitism, with links to Islamic State (ISIS) ideology.

Casualties

Fatalities: At least 16 people were killed (including one of the gunmen).

Injuries: More than 40 people were injured, including children and two police officers.

Notable Victims: Among the dead were Rabbi Eli Schlanger (an organizer of the event), a 10-year-old girl, and Alex Kleytman, a Holocaust survivor who died while shielding his wife.

Acts of Heroism

The tragedy was marked by extraordinary bravery from bystanders:

Ahmed al-Ahmed: A 43-year-old bystander tackled and disarmed one of the gunmen during the shooting. Although he was shot twice by the second attacker, his actions provided a window for others to flee and for police to engage.

Local Lifesavers: Lifeguards from the nearby Bondi Surf Lifesaving Club rushed toward the gunfire to provide immediate first aid to the wounded, using the club's medical kits to save lives under fire. 

We started our drive around 15:05, arriving in about 70 minutes, and parking at the Sutter-Stockton garage, located conveniently near Union Square.

Once we parked (on the 5th floor), we walked to Union Square, enjoying the festive Christmas atmosphere. There were lots of people and police, and sections of the square were blocked off for car traffic.

Our first stop was to visit Neuman Marcus to look at some items for Inna (and to photograph the very tall and beautiful Christmas tree inside).



At around 17:00, we headed back to Union Square to join the menorah lighting ceremony. There were many people present, and several speeches were given by a few rabbis and the Mayor of San Francisco.
The Bill Graham Menorah Project is hosting its 2025 Chanukah Festival in Union Square, San Francisco, from December 14 to December 22, marking the 50th anniversary of the first giant public menorah outside Israel. The event features nightly lighting ceremonies, music, community gatherings, and special honors for leaders and traditions across the Jewish community.

The 25-foot-tall menorah will be illuminated each night throughout the festival, continuing a tradition that began in 1975 and has inspired thousands of menorahs worldwide. The festival culminates on Sunday, December 21, with the eighth and final lighting ceremony at 5:00 PM, honoring the Russian Jewish Speaking Community and the wider Jewish Community, followed by a SF Menorah Car Parade.

Here is an AI Summary of the speeches given at the Menorah Lighting Ceremony. 

Mayor Daniel Lurie

In one of his first major public appearances as Mayor-elect, Lurie emphasized the importance of light during challenging times.

  • Theme of Light: He noted that the first day of Hanukkah was "a very dark day" globally, but emphasized that gathering as a community to provide light was "just what we needed to do."

  • Community Pride: He expressed honor in seeing the crowd turn out despite the circumstances, framing the event as a necessary act of joy.

Rabbi Moshe Langer (Chabad of SF)

Rabbi Langer, whose father helped start the tradition with Bill Graham in 1975, addressed the security concerns directly.

  • Defiance Against Fear: He stated firmly that "When there is darkness, we must bring light," and vowed that the community would not allow "fear or terror to silence us or cause us to retreat."

  • The 50-Year Legacy: He highlighted the milestone of the 50th anniversary, noting that this was the first giant public menorah ever erected outside of Israel.

Manny Yekutiel (Civic Leader & Activist)

Yekutiel gave a poignant and raw speech regarding the reality of being a Jewish leader today.

  • Heightened Anxiety: He admitted to the crowd that while the Mayor was speaking, he found himself "watching the tops of the buildings," describing the visceral vigilance required at public Jewish events.

  • Fighting Back with Joy: He argued that the best way to honor those lost in recent violence was to be "extra visible" and "extra joyous," rather than hiding.

State Senator Scott Wiener

Wiener provided a message of solidarity and legislative resolve.

  • Solidarity: He voiced his mourning for the lives lost in Australia and stood in solidarity with the local Jewish community.

  • Call to Action: He emphasized that "Antisemitism has no place in our world" and called for a renewed commitment to ending hate-driven violence.

Thursday, December 11, 2025

Review: Sennheiser HD600 headphones

For the past 10 years, I have been using the Sony MDR-7506 headphones for all my audio listening. Having recently upgraded to a Topping DX5 II DAC/headphone amplifier, I decided it was time to upgrade to more audiophile-quality headphones as well.


After doing some research, I found the Sennheiser HD600 highly recommended by everyone (including ChatGPT, Gemini, and AVScience).

It's one defect - the low subbass can be relieved by using Topping DX5 II's equalizer or Foobar2000's DSP module.

Sennheiser HD600 Review

Positives
  • The benchmark for uncolored sound. The tonal balance is nearly perfect and consistent across the range.
  • Reasonable Price ($279 on Amazon.com)
  • The HD 600 is renowned for its natural, lifelike, and forward-midrange sound
    . Vocals and acoustic instruments sound exceptionally correct and articulate.
  • The high frequencies are extended but smooth and controlled, avoiding harshness or sibilance, making it ideal for very long listening or mixing sessions.
  • Very lightweight (260g) with plush velour earpads and an elliptical cup shape that fits around most ears. 
  • Known for lasting decades. The entire headphone is modular—virtually every single part (cable, pads, headband, grille) is easily replaceable and available from Sennheiser.
  • Lots of replacement ear pads and compatible cables are available
Negatives
  • The bass is tight and clean, but the deep sub-bass frequencies lack the presence, impact, and "rumble" expected in modern music or from planar headphones.
  • The soundstage is accurate but generally small and "in-your-head." It lacks the expansive width and airiness of competitors like the HiFiMan Sundara.
  • Out of the box, the headband clamping force can be quite tight, especially for larger heads. It needs a "break-in" period or manual stretching to become comfortable.
  • Its 300-ohm impedance makes it unusable or poorly driven by most phones, laptops, or portable music players without a dedicated amplifier.
  • Being an open-back headphone, sound leaks out significantly, making it unsuitable for use in shared spaces like offices or libraries.
Topping DX5 II PEQ Settings for Sennheiser HD600

Here are ready-to-enter EQ profiles for the HD600, created using the Topping Tune DX5 II PEQ software. You can copy these directly into Topping Tune → PEQ → Add Filter.

Filter #TypeFrequency (Fc)Gain (dB)Q Factor
PreampN/AN/A-10 dBN/A
1Low Shelf (LS)105 Hz+5.0 dB0.71
2Peaking (PK)125 Hz-3.6 dB0.45
3Peaking (PK)1310 Hz-2.1 dB1.7
4Peaking (PK)3100 Hz-3.9 dB2.2
5Peaking (PK)3500 Hz-1.0 dB4
6Peaking (PK)5000 Hz-1.8 dB6
7Peaking (PK)5900 Hz-5.7 dB5
8Peaking (PK)6000 Hz+3.0 dB0.71
9Peaking (PK)8100 Hz-3.2 dB5
10High Shelf (HS)13000 Hz-5.0 dB0.71

Links


Monday, December 8, 2025

Review: Topping DX5 II Fully Balanced DAC & Headphone Amp

For my newly built Windows 11 PC, I initially planned to install an Xonar Essence STX PCIe audio card, but it is no longer manufactured. As a replacement, I decided to purchase a standalone DAC and headphone amplifier to use with my Sony MDR-7506 headphones.

Initially, I tried the Topping DX3 Pro+ DAC/headphone amp, achieving excellent results. However, I realized that a newer, significantly improved version of the Topping DX5 II DAC had been recently released, and I wanted to see whether any audible improvements were possible. Fortunately, the DX5 II does sound slightly better than the DX3 Pro+ DAC.

I had read very positive review results on the Topping DX5 II on the AudioScienceReview website, where laboratory measurements are done in a controlled environment.

  • Dual ES9039Q2M】Each channel (left and right) utilizes an independent ESS new DAC chip-ES9039Q2M.This design delivers higher SNR, greater DNR, and lower distortion compared to the DX5, offering high-resolution audio performance.
  • 【X-Hybrid Headphone Amplifier Circuit】X-Hybrid represents a new technological breakthrough following NFCA architecture. Utilizing an all-new triple-stage hybrid amplification design*, it not only retains the signature ultra-low distortion and high dynamic range of the NFCA, but also achieves significantly improved efficiency by optimizing circuit topology-resulting in reduced static power consumption and heat generation.
  • 【Wide range of adaptation to headphones】The DX5 II is equipped with 6.35mm single-ended, 4.4mm balanced, and 4-pin XLR headphone jacks, meeting the needs of low-sensitivity headphones to high-sensitivity lEMs. With a low noise floor of just 1.8uVrms, even the most sensitive lEMs remain free from any audible background hiss.
  • 【Ten-band high-precision PEQ adjustment】We develop a brand new PEQ adjustment* that supports ten customizable frequency bands. Topping's brand new PEQ algorithm and desktop software allow you to fine-tune the frequency, gain, and bandwidth of each PEQ band.
  • 【LDAC wireless available】Equipped with QCC5125 chip, DX5 II supports Bluetooth 5.1 and can support up to 96kHz/24bit. Also, it fully supports LDAC/aptX-Adaptive/aptX/aptX HD/AAC/SBC and other audio encodings, allowing high-quality audio to be transmitted wirelessly to provide a music experience beyond CD level.

Topping DX5 II DAC/Headphone Review

Positives
  • Standalone DAC with excellent audio specs, SNR (133dB), THD 
  • Supports all the latest audio standards
  • A high-power headphone amplifier that drives my Sennheiser HD600 easily
  • Multiple Balanced Outputs
  • Remote control
  • Bluetooth streaming support
  • Reasonable price ($299)
  • Multiple balanced headphone outputs
  • Clear, unfiltered sound over USB
  • Automatic power-on/off when the CPU is turned on/off
  • When playing a new song, it briefly displays the bitrate
  • Beautiful, customizable display with a 10-band equalizer
Negatives
  • The USB-B cable supplied is very short
  • The A/C power cable is also a bit shorter than expected
  • Using an iPhone, the Bluetooth streaming quality is sub-par (iPhone's IOS does not support the higher-end audio standards)

Configuration

1. Driver and Software Installation (Crucial for Best Performance)

While the Topping DX5 II is often "plug-and-play" (class-compliant) for basic functionality, installing the dedicated Topping USB Driver (often a Thesycon driver) is highly recommended.

  • Install the Driver: Visit the official Topping website's download section (or the dealer's site if the main site is unavailable) and download the latest USB driver for Windows. This driver is essential for achieving bit-perfect playback and for using advanced low-latency protocols like ASIO (required by some audiophile playback software).

  • Install Topping Tune Software (Optional but Recommended): This software allows you to configure the unit's powerful, built-in 10-band Parametric Equalizer (PEQ). You can create, save, and upload custom EQ profiles directly to the DX5 II hardware, which is a fantastic feature.

  • Update Firmware (Check First): Check the Topping downloads page for the latest firmware. If you are not on the latest version, follow the official instructions to update it for stability and to access new features.

2. Windows Sound Settings

After installing the driver and connecting the DX5 II via USB, you need to configure Windows to use its full capabilities.

  • Select the DAC:

    • Right-click the speaker icon in the taskbar and select "Sound settings."

    • Under "Output," select the Topping DX5 II (it will typically be named something like "Speakers (XMOS USB Audio)" or similar) as your primary audio device.

  • Set High Bit-Depth and Sample Rate:

    • In the Sound settings, click the device entry for the Topping DX5 II to open its properties.

    • Scroll down to "Format" or "Advanced" settings.

    • Under "Default format," choose the highest available bit-depth and sample rate. For the DX5 II via USB, this is typically 32-bit, 768000 Hz (or 768 kHz) for PCM. Selecting the highest rate ensures that Windows is not downsampling high-resolution files.

  • Disable Enhancements:

    • Make sure all "Audio enhancements" (like spatial sound, loudness equalization, etc.) are turned OFF in the same device properties menu. These are digital signal processing (DSP) features that can degrade the quality of the DAC's output.

3. Dedicated Playback Software (For Audiophiles)

For the best possible sound quality, bypass the Windows audio mixer entirely using playback software that supports exclusive audio modes.

  • WASAPI Exclusive Mode: Most music players (like Foobar2000, JRiver Media Center, Tidal, Qobuz) can be set to use WASAPI Exclusive Mode. This gives the application direct access to the DX5 II, bypassing all Windows mixing and processing for a cleaner, bit-perfect signal.

  • ASIO Mode: Some professional or dedicated audiophile players will use ASIO (Audio Stream Input/Output) as the preferred low-latency protocol. This will only be available if you have installed the dedicated Topping USB driver.

4. Topping DX5 II Hardware Settings

The DX5 II has several internal settings you can adjust via the front panel knob and remote

  • Digital Filter: The DX5 II uses ESS Sabre DACs and offers several digital filter options (often 8 choices, with Minimum Phase as the default). Experiment with these to see if one sounds better to your ears. Minimum Phase or Fast Linear are common starting points.

  • UAC Mode: Ensure the UAC (USB Audio Class) setting is on UAC 2.0 for full high-res support. (UAC 1.0 is generally only for older devices like the PS5.)

  • Output Mode: Decide if you want a fixed-level Line Out (DAC mode) for connection to a separate amplifier, or a variable-level Preamp Out (Preamp mode) to connect directly to powered speakers or a power amplifier. The headphone output level is always variable.

  • Gain Setting: The DX5 II has a 2-stage gain setting (Low or High). Use Low Gain for sensitive headphones/IEMs to minimize background noise, and switch to High Gain only if you need more volume for hard-to-drive headphones.


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Saturday, December 6, 2025

Two Nights in Sonoma

Inna and I planned a two-day weekend at the Fairmont Sonoma Mission Inn & Spa from Friday, December 5, to Sunday, December  7, 2025. 

I precharged our Tesla Model Y's battery to 95% capacity, anticipating the long drive ahead.

Friday,  December 5, 2025

We started the long drive to Sonoma in the late afternoon. There were periods of heavy traffic on I-680 and in San Francisco, and we arrived in Sonoma at around 20:05. It was quite chilly outside, with temperatures reaching 42 degrees Fahrenheit (as cold as Incline Village!) Fortunately, we brought our warm winter jackets.


Inna had made dinner reservations at the El Dorado Kitchen for 20:15, and we drove there.


We drove for about 10 minutes to El Dorado and found parking nearby. Upon checking in, we were immediately seated at our table. It was a bit noisy (with our table overlooking the kitchen), but our waiter was welcoming and brought us water and a freshly printed menu. After looking it over, we ordered the following items:

  • Appetizer: Roasted Maitake Mushrooms, Mixed Salad
  • Boris: Pan-seared Salmon, Hot Tea
  • Inna: Pan-seared Salmon, Hot Tea
  • Dessert: Molten Chocolate Cake
Inna and I loved Roasted Maitake Mushrooms. Our Pan-seared Wild Salmon was excellent. The Molten Chocolate Cake was small, but delicious.



After dinner, we strolled around downtown Sonoma for a bit to work off the calories and get some exercise. 

We drove back to the Fairmont Sonoma Inn & Spa, using valet parking to drop off and recharge our Tesla (Note: Tesla chargers are available in the self-park as well). 

Our room #361 on the 3rd floor was a bit cold, so we turned on the room's heater.




Saturday, December 6, 2025
 
We woke at around 08:00, showered, and dressed. We decided to eat breakfast at Sante, downstairs. 
After being seated, we ordered the following breakfast items:
  • Appetizer: Sante Banana Bread
  • Boris: Duck Confit Hash, Hot Coffee
  • Inna: Yogurt & Berries, Hot Coffee
My Duck Config Hash was amazing, as was Inna's Yogurt & Berries (excellent quality yogurt). The Banana bread with peanut butter was not bad, but not my favorite.



After breakfast, we decided to visit the Jack London State Historic Park to do some hiking. We hiked for 100 minutes (3.4 miles), following the Jack London Mountain and Quarry trail. Note, the iPhone Alltrails.com app was very helpful in guiding us along the multiple trails and providing proper turn-offs. See the Jack London State Park Trail Map for more details on other available hiking trails.


The trails were beautiful, with tall redwoods and many deciduous trees shedding colorful leaves. Although the morning air was initially chilly (with plenty of fog everywhere), we warmed up halfway through the hike. The Jack London State Historic Park was nearly empty, and we encountered very few other hikers.



For lunch, we decided to stop by The Mill in Glen Ellen. Unfortunately, the Mill was closed for a special event, and we decided to eat at Yeti Restaurant, a nearby Indian/Nepalese restaurant (also highly rated by the Michelin guide).  



Once seated by the window, we ordered the following items from our waitress, Lata.
  • Drinks: Hot Tea x 2
  • Appetizer: Garlic Naan
  • Salads: Organic Green Salad
  • Entrees: Yeti Special Lamb Kebab
  • Boris: Himalayan Pepper Soup, Steamed White Rice, Sweet Mango Chutney
  • Inna: Himalayan Pepper Soup, Raita
The freshly baked Garlic Naan was amazing (one of the best I've ever had). The Green Salad was just ok (the tomatoes were out of season). The Himalayan Pepper Soup was warm and a bit spicy. The Yeti Special Lamb Kebab was spectacular. It looked like a Mexican Fajita, but the lamb slices were tender, juicy, and full of exotic flavors. The Lamb was by far the best dish!



There were also multiple modern sculptures nearby and a small shop that sold freshly made chocolates: Wine Country Chocolates. We purchased 4 small chocolate candies to share for dessert. The chocolate with orange was especially delicious.



After lunch, Inna and I decided to try out the Fairmont Spa. Since we arrived after 15:00, the cost was $49/person.

We first started outdoors, floating around in a mineral outdoor pool. At around 16:00, we decided to head indoors for the main spa, following the recommended procedure (the cold plunge bucket was unavailable):
  1. Steam Room
  2. Sauna with Mineral Salt
  3. Scrub with a Hot Shower
  4. Relaxation Room
  5. Warm Pool
The relaxation room was especially tranquil, where I managed to start reading The Brothers Ashkenazi by J. D. Singer on my new Kindle Colorsoft. We stayed until the spa's closing time of 18:00.

Fairmont Spa’s enviable location atop an ancient thermal mineral spring makes this a spectacularly unique destination, boasting naturally heated geothermal mineral pools for year-round enjoyment.



For dinner, Inna made reservations at the Girl & The Fig restaurant (located inside the Sonoma Hotel). On arrival at 19:15, we were seated in the center of a room. Upon looking at the menu, we ordered the following items:
  • Drinks: Golden State Apple Cider
  • Appetizer: Fig & Arugula Salad
  • Boris: Duck Config
  • Inna: Pan-seared Scallops & Chanterelles
The Fig & Arugula salad was pretty good, and my Duck Confit was excellent (though the portion was small). Inna's Pan-seared Scallops were delicious, but they were small.



After dinner, we strolled around Sonoma downtown (most of the shops were already closed), and then returend to our Fairmont Hotel. We hoped to play Scrabble in the lobby, but the game was missing (though other games were available).




Sunday, December 7, 2025

We woke at around 08:00, showered, and dressed. We decided to eat breakfast at Sante, downstairs. 
After being seated, we ordered the following breakfast items:
  • Boris: Duck Confit Hash, Hot Coffee
  • Inna: Yogurt & Berries, Hot Coffee
  • Dessert: Lemon Pancakes
The Duck Confit was delicious as usual, and the Yogurt & Berries were excellent too. The Lemon Pancakes were also amazing (a big surprise for us). It was a fantastic way to start the day! 



After breakfast, we decided to go for a short swim in the hotel's outdoor heated pool. Before swimming, Inna asked for a late checkout and was offered to check out at 13:00 (instead of the usual noon).



We swam around the pool for about an hour (from 10:30 to 11:30). After we finished the swim, we returned to our room to pack and check out. We checked out around noon, loading our Tesla Model Y and driving to the Sonoma Overlook Trail.


This is a beautiful trail to do for sunrise or sunset, featuring a gentle climb with a rewarding view from Sonoma Overlook at the end. Enjoy traversing the switchbacks as you rise up through tree-covered slopes and cross a small stream. The trail itself is well-maintained, and there are stone benches at optimal viewpoints along the way. The trail begins and ends at the parking lot on 1st Street.
The Sonoma Overlook Trail was an easy 2.6-mile round-trip hike, with a gentle ascent to the top. It was not as scenic as the previous day's Jack London Mountain and Quarry hike. However, it was pleasant with a beautiful view of the surrounding Sonoma. Unfortunately, the skies were quite overcast and foggy, so distant landmarks were difficult to see.



After we finished the hike, we returned to downtown Sonoma, where we parked our car and headed to the El Dorado Kitchen for brunch. We ordered the following items:
  • Drinks: Hot Tea x 2
  • Boris: Tuna Poke Bowl
  • Inna: Tuna Poke Bowl (without rice)
The Tuna Poke bowls were excellent - light and refreshing. We had the same waiter as the day before, who recognized us.



After lunch, I headed to Ohm Coffee Roasters to relax, while Inna strolled around nearby stores.




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