Note that this is a discontinued product. You may want to visit the brand's page here to browse their newer products.
What reviewers think
Magazine reviewers and YouTubers have tried this product—so we've summarized their strongest opinions below.
Product Strengths
- The music has an enormous presence in the room, making it hard to ignore
- The music is presented spatially very forward, making voices and musicians come directly to the listener
- Each sound has a three-dimensionality, a body, and a spatial depth
- Delivers an energetic—not lush—sound
- Uses a straightforward, clear, and efficient concept, implemented with the best ingredients
Product Considerations
- The amplifier has tonal characteristics that deviate from a neutral sound
- Channel-separated volume controls could use a scale for better usability
- The open tube design has no protection, potentially posing a risk to children and pets
- Requires a warm-up period of around thirty minutes to achieve its best performance
- The input is located at an unusual place, at the front of the left side of the case
Comparisons (according to reviewers)
- The Spendor 3/5SE speakers sounded similarly 'big' and 'invisible' only when paired with a Gryphon Antileon and a large Pass stereo amplifier
Takeaway: The Audio Note Tomei Kensei creates musical experiences that stick with you, creating a sense of magic, goosebumps and speechlessness. If the musical experience matters the most to you, this could be the right choice.
Compared to their other products
We think it's helpful to understand how this product fits into the brand's full lineup (below). To learn more about these products, visit the brand's page.
DAC 0.1x
- Positioning: Entry-level model in the Audio Note DAC lineup.
- Description: Features a 1x oversampling technology that avoids digital filtering, which is unique compared to higher models that may include more complex circuitry. Uses a Philips TDA1543 chip and a 6111WA valve output stage, making it ideal for small rooms or budget-conscious users who still want quality tube sound.
DAC 1.1x
- Positioning: Positioned as a step above the entry-level, offering enhanced performance.
- Description: Improves upon the 0.1x with an 18-bit AD1865 chip, providing a richer sound experience. Maintains the no-oversampling approach.
DAC 4.1x
- Positioning: High-end model designed for serious audiophiles.
- Description: Features advanced components like custom transformers and a sophisticated output stage, providing superior sound clarity and detail.
DAC 5
- Positioning: Flagship model representing the pinnacle of Audio Note's DAC technology.
- Description: Features the most advanced digital circuit and highest quality materials, including silver-wound transformers.
Read the reviews

Tomei Kensei
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Manufacturer's notes
Sharing the circuit design found in the legendary ONGAKU Kensei and JINRO Shochu amplifiers, the TOMEI Kensei bridges the gap between them. Featuring a combination of copper primary and silver secondary windings for the transformers, its performance is both unique and beguiling.
Level 4 components are used throughout, including Audio Note (UK)™ Tantalum resistors and Foil Capacitors and in-house designed and manufactured copper/silver wired output transformers.
It has been specifically engineered for sonic performance rather than technical specification, and fulfils all Audio Note (UK) Level 4 criteria: - Pure Class A operation Zero Negative Feedback Single Ended Output Stage Valve Rectification Directly Heated Triode operation Materials and component quality
- Input Impedance: 2.4 KOhm, line level
- Input Sensitivity: 450mV for full output
- Maximum Output: 20 Watts (approx.) per channel into 4 or 8 Ohm loads
- Channel Balance: +/- 0.3dB
- Valve Complement: 2 x 5R4WGB, 2 x 211, 2 x 6V6
- Unit Weight: 38kg
- Unit Dimensions: 305 mm (h) x 305mm (w) x 640mm (d)
- Mains Input: AC 100-120V / 220-240V 50/60Hz
- Max. Power Consumption: 200 Watts
Our take on the brand
Used
Audio Note
What if you spend a bit more?

The MX-HPA’s technical performance is stunning. Typically, distortion from 20 Hz to 40 kHz is less than 0.005%. Signal-to-noise ratio is better than 120dB (‘A’ weighted). Frequency response is ruler flat from 10 Hz to 20 kHz (-0.1dB). The MX-HPA is capable of a short-term peak of 10 watts (for one cycle) and has two gain positions: 18dB (8X) and 24dB (15X). Inputs are either balanced or single-ended. The MX-HPA will automatically convert single-ended inputs to balanced. The MX-HPA is genuinely fully balanced from beginning to end.
Our Summary
Product Strengths
- Exceptional build quality with an elegant, minimalist aesthetic
- Fully balanced design
- Exceptional signal-to-noise ratio (>120dB 'A' weighted)
- Versatile because it automatically converts single-ended inputs to balanced signals
- Dual gain settings for versatility with virtually any headphone impedance
Product Considerations
- May be overkill for entry-level headphones
- The twin-XLR alternative is not the only means of balanced connection
Takeaway: The Musical Fidelity MX HPA is a remarkable piece of equipment that represents a significant achievement in balanced amplification design. It delivers a listening experience that is hard to surpass with technical excellence and practical versatility.
Video review
Our take on the brand
Our Summary
Product Strengths
- Half-width size is desirable for storage, as two units can fit side-by-side on a typical hifi shelf
- Strong dynamic profile, dimensionality, and power for most performance speakers on the market
- Bass is much more controlled, and leading edges are significantly more defined, compared to the previous version
- Vocals feel lifelike and tangible
- Possesses a nice overall tone and a well executed lack of dryness or 'thin' character
Product Considerations
- A single Aegir 2 box delivers audiophile fun with efficient setups, but shines best in a dual mono two amp situation
- The top of the unit does heat up slightly with use
- May not be the perfect choice for high demand electrostatics
- Requires a balanced connection from the pre amp to bring out the best from the setup
- Takes a little longer to boot up compared to the original Aegir
Comparisons (according to reviewers)
- Vs Schiit Vidar: The Aegir 2 has a sound that is more rich and thick, but still defined
- Vs Aegir G1 (original): The Aegir 2 has increased dynamics and low end control compared to the original
Takeaway: The Schiit Audio Aegir 2 is a fun power amplifier that offers a strong dynamic profile and nice overall tone. It brings dimensionality and sufficient power for most performance speakers, making it an enjoyable addition to any audiophile setup.
Video review
Our take on the brand

Our Summary
Product Strengths
- Delivers a clean and detailed sound, allowing listeners to hear nuances in recordings
- Offers good instrument separation and imaging
- Has a low noise floor, creating a 'black background' and enhancing the listening experience
- Compact size for an A-B amplifier
- Does not have RCA inputs, requiring XLR or TRS balanced connections
Product Considerations
- May not have enough power for inefficient speakers or large rooms
- External power supply 'brick' is large
- No remote control
Comparisons (according to reviewers)
- The LA90 has a more neutral sound than Cambridge Audio AXA25, which is cleaner and more detailed
- The LA90 comes close to Benchmark AHB2's performance, but does not outperform it in bass impact and soundstage size, and the AHB2 also has more protection systems
- The LA90 offers more vocal clarity and fuller bottom end than Schiit Vidar, but the Vidar is more exciting on top
- Emotiva A1's have more power
Takeaway: The Topping LA-90 Discrete is a small amplifier that produces very clear sound with good detail, making it great for those who already have balanced audio equipment. It could be a nice upgrade for those seeking to hear all the subtleties in their music.
Video review
Our take on the brand

Our Summary
Product Strengths
- Impressive specs and measurements showcase extremely low noise and distortion
- Clean and transparent sound aims for a neutral reproduction of music
- Compact size and sleek design make it suitable for small spaces
- CNC machined aluminum chassis allows for maximum thermal flow to keep the unit running cool
Product Considerations
- Included external power supply is large and heavy, which can be a challenge to hide
- Power output may be limiting, especially with demanding speakers and for high dynamic range tracks
- Bass performance, while tight and controlled, may lack sub-bass extension and impact for some listeners
- Lack of a remote control limits its convenience as an integrated amplifier
Comparisons (according to reviewers)
- The Discrete version matches the Topping LA90 IC based unit's exemplary performance, but betters it in power handling
- The Topping LA90 comes close to the Benchmark AHB2 in noise floor and detail retrieval, but the AHB2 has more power, impactful bass, and a bigger soundstage
Takeaway: The Topping LA90 is a compact and technically proficient amplifier that delivers a clean and transparent sound and with impressive specs. It is best suited for those with efficient speakers and a preference for accurate sound reproduction without coloration.
Video review
Our take on the brand
What else competes at this price?

Our Summary
Product Strengths
- Impressive clarity, especially in the midrange, enhances detail in the music
- Bass performance is focused and precise, adding detail and punch to the lower frequencies
- A wide and expansive soundstage creates a sense of space and separation between instruments
- The amp is small and light, but is a fully linear class AB amplifier with a transformer inside
- It offers neutral presentation
- Requires a preamplifier with volume control, as it is a power amplifier without a volume knob itself
- Banana plugs are required for speaker connections, spades are not compatible
- In monoblock configuration, a preamplifier with balanced outputs is required
Product Considerations
- Requires a preamplifier with volume control, as it is a power amplifier without a volume knob itself
- Banana plugs are required for speaker connections, spades are not compatible
- In monoblock configuration, a preamplifier with balanced outputs is required
- 10 watts might not be enough for all listening setups and all environments
- It is important to pair this amp with speakers with high efficiency rating
Comparisons (according to reviewers)
- Versus the Cambridge Audio 651A—the Gjallarhorn had a wider and cleaner soundstage, provided a bigger bass performance, and separated the instruments in a more efficient manner, thus enhancing the clarity
- Versus the Rega Brio-R—the Gjallarhorn had a wider and cleaner soundstage, provided a bigger bass performance, and separated the instruments in a more efficient manner, thus enhancing the clarity
- Versus the Fosi Audio BT20A Pro—the Gjallarhorn had a bit more space and instrument separation
- Versus the Schiit Vidar—the Vidar has a lot more power, which is not the Gjallarhorn's intent
- Versus the Schiit Rekkr—the Gjallarhorn outperforms the Rekkr (2 watts), and is designed for more powerful home set ups rather than desktops
Takeaway: The Gjallarhorn is a versatile amplifier that excels in near-field setups and can be transformed into a powerful monoblock system, delivering clarity and balanced sound. It is a great choice for those seeking a compact yet capable amplifier for smaller spaces or desktop use, especially when paired with efficient speakers.
Video review
Our take on the brand

Our Summary
Product Strengths
- Good sound quality for the price, described as clean, crisp, and clear
- Small size, making it suitable for desktop setups or smaller rooms
- Tone controls (bass and treble) allow for sound customization to suit personal preferences or speaker characteristics
- Provides ample power for most bookshelf speakers
- Good value for money
- Only has one RCA input, limiting connectivity options
Product Considerations
- Advertised 300W per channel output is misleading as it requires a more powerful power supply than the one included (32V/5A)
- Some reviewers note the lack of a center detent on the tone control knobs, making it difficult to find the neutral position
- Lacks features like a tone defeat switch or remote control
- Some reviewers pointed out that the status LED is barely visible
Comparisons (according to reviewers)
- Vs Dayton Audio DTA-100A: More power
- Did not exhibit any unwanted hiss, unlike the JBL 305P MKII which is known for its hissy nature
- Sound quality is similar to Fosi Audio BT30D PRO, and dynamics, but the TB10D has a quieter power brick
- At low volumes, the TB10D is more controlled compared to Arylic A50+, has better impact, and more bass if the EQ wheels are engaged
Takeaway: The Fosi Audio TB10D is a compact and budget-friendly amplifier that delivers impressive sound quality and power for its size, making it great for desktop setups or small spaces. With its tone controls and simple design, it offers a lot of value for beginners and experienced listeners alike.
Video review
Our take on the brand
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Our Summary
Product Strengths
- Good sound quality, especially in the midrange, leads to vivid and well-formed vocals
- Versatile, it works well with both efficient headphones/IEMs and moderately powered speakers
- Compact design and good build quality, with the chassis acting as a heatsink
- Ability to roll op amps allows users to customize the sound signature
- Ample power for most headphones and nearfield speaker setups
- Only one RCA input, which may be limiting for some users
Product Considerations
- Speaker amplifier power (35-45W) might be insufficient for power-hungry speakers or larger rooms
- The base model op amps are sonically inferior to upgrade options
- Mild turn-off thump present
Comparisons (according to reviewers)
- The Funk has a narrower but deeper soundstage with better imaging and layering than the Arylic A08 Pro
- The Funk has superior imaging, but less potential power output depending on the Arylic's power supply than the Arylic A07/A08 Pro
- The Funk is preferred for desktop speaker setups with Vivid opamps when compared to Schiit Aegir
Takeaway: The Burson Funk is a solid choice for people wanting good sound from both their headphones and speakers in a single, convenient unit. The ability to change the sound by swapping op amps is a welcome feature for those who like to tinker and upgrade.
Video review
Our take on the brand

Our Summary
Product Strengths
- Small and compact design makes it suitable for desktop use
- Neutral and uncolored sound signature
- Great build quality for the price
- Replaceable op-amps allow customizing the sound signature
- Some reviewers consider it a 'killer value' and the 'best amp' in the sub-$100 category
- Connectivity options are available
Product Considerations
- The 3.5mm pre-out is not controlled by the volume knob
- Bass response can be shallow, and the unit sounds better at higher volumes
- The stated power output of 300W is misleading and requires a separate, more powerful power supply
- Treble may sound thinned out or rolled-off to some listeners
- Lacks a remote control
Comparisons (according to reviewers)
- Vs SMSL A300: The V3 has a slightly more natural and coherent presentation, while the A300 is livelier in highs
- Vs Topping PA7 Plus: The PA7 Plus sounds cleaner, more revealing, and develops a bigger soundstage
- Vs Fosi Audio TB10D: The V3 sounds cleaner and clearer, with better instrument separation
- Vs AIYIMA A07 PRO: The V3 sounds more natural, smoother, cleaner, leaner
- Vs Fosi Audio BT20A PRO: The V3 has better driving power and lower distortion
- Vs Schiit Rekkr: The V3 has much better low-end and bass response
Takeaway: The Fosi Audio V3 is a compact and affordable amplifier that provides a clean and balanced sound, making it a great choice for desktop setups and those seeking a simple, high-value audio solution. It offers customization options and performs surprisingly well for its price.
Video review
Our take on the brand

Our Summary
Product Strengths
- Great value for the money and an attractive price point
- Balanced input and single-ended RCA input
- Op amps are swappable
- Compact form factor
- Versatile with stereo and mono mode
Product Considerations
- The volume control was found to be touchy by some reviewers
- The included power brick is quite large, almost as big as the unit itself
- The binding posts are small
- The RCA input sounds inferior to the XLR input
- The amplifier does not high pass the mains when a subwoofer is plugged in
Comparisons (according to reviewers)
- Vs Fosi Audio V3: ZA3 is considered a more mature version with stylistic elements and new features like balanced inputs and mono mode, with a naturalness in the tonal quality
- Vs SMSL AO200 MKII: AO200 MKII delivers better clarity, definition, and resolution of the sound
Takeaway: The ZA3 is a versatile and compact amplifier that offers great value, especially for those starting their audio journey. Its ability to be used in both stereo and mono configurations and the option to upgrade components make it a flexible choice for various setups.
Video review
Our take on the brand
Note that this is a discontinued product. You may want to visit the brand's page here to browse their newer products.
What reviewers think
Magazine reviewers and YouTubers have tried this product—so we've summarized their strongest opinions below.
Product Strengths
- The music has an enormous presence in the room, making it hard to ignore
- The music is presented spatially very forward, making voices and musicians come directly to the listener
- Each sound has a three-dimensionality, a body, and a spatial depth
- Delivers an energetic—not lush—sound
- Uses a straightforward, clear, and efficient concept, implemented with the best ingredients
Product Considerations
- The amplifier has tonal characteristics that deviate from a neutral sound
- Channel-separated volume controls could use a scale for better usability
- The open tube design has no protection, potentially posing a risk to children and pets
- Requires a warm-up period of around thirty minutes to achieve its best performance
- The input is located at an unusual place, at the front of the left side of the case
Comparisons (according to reviewers)
- The Spendor 3/5SE speakers sounded similarly 'big' and 'invisible' only when paired with a Gryphon Antileon and a large Pass stereo amplifier
Takeaway: The Audio Note Tomei Kensei creates musical experiences that stick with you, creating a sense of magic, goosebumps and speechlessness. If the musical experience matters the most to you, this could be the right choice.
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