Website author headshot
Cameron Oatley
ExtremeHiFi
Website author headshot
Julian Shapiro
ExtremeHiFi

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

Bloggers and YouTubers have tried this product—so we've summarized their strongest opinions below. Links to full reviews follow.

What are hifi reviews useful for? (1) Identifying products you should demo in person at a dealer. (2) Learning which products reviewers unanimously praise as the best they've heard (this means they probably are legitimately great). (3) Identifying a product's attributes that satisfy your idiosyncratic needs and tastes. Beyond that, we often discount what reviewers say because they heap praise on most products—and are often apprehensive about publishing strong criticism or comparisons between products. Further, they seldom have more than a few products on-hand, often relying on their memories to compare past products. Always listen for yourself.

Brand highlights

Taking a step back to look at reviewers' thoughts of the brand's entire lineup—not just this product—what stands out most is the following:

  • SMSL amplifiers, particularly the AO series, offer a versatile feature set, including USB DAC functionality, Bluetooth connectivity, and subwoofer outputs, making them suitable for diverse audio setups, often at an affordable price.
  • They incorporate quality components, such as Infineon Class D amplifier chips, NJRC potentiometers, and TI op-amps, reflecting a deliberate choice to balance performance and cost.
  • SMSL DACs often provide a neutral and transparent sound signature, aiming for accurate audio reproduction with excellent detail retrieval.
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Avg. Product Price
$500
Used For Sale
24
 Available (Scroll Down)
Brand Popularity
12
 of 900+
Badges
Top 50 Brand
Top 250 Brand
Products Listed
94
Founding Year
2009

Our take on the brand

SMSL, a Shenzhen-based hifi brand, stands out for its use of advanced chipsets like Infineon's MERUS and ES9039Q2M, which have been objectively verified to deliver exceptionally low noise and distortion levels. The brand has earned acclaim from value-conscious audiophiles.

Look inside the brand

Brand Page

Our interview with the brand

What are two key technological innovations or strong opinions that differ you from other brands?

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What are your favorite tracks for showcasing the strength of your products?

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From our interview with
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Brand Page

What if you spend more?

Product image
Orchard Audio
Starkrimson Mono (Premium)
999
999
/
6
Reviews

Introducing the Starkrimson Mono Premium audio power amplifier – where innovation meets audio excellence. Groundbreaking gallium nitride (GaN) technology has been seamlessly integrated into every aspect of this audio masterpiece. GaN’s efficiency and precision redefine expectations, delivering crystal-clear, distortion-free sound reproduction across the entire frequency spectrum. Crafted with meticulous attention to detail, this amplifier boasts a sleek and modern design that complements any audio setup. The Starkrimson Mono Premium is not just an amplifier; it’s a statement piece that enhances your listening space with both aesthetics and performance. The Starkrimson Mono Premium amplifier provides an immersive journey into the heart of your favorite music. Elevate your audio experience with the pinnacle of GaN technology – the Starkrimson Mono Premium.

Orchard Audio is a direct-to-consumer hifi brand that uses Gallium Nitride (GaN) technology in their Starkrimson amplifiers, which allows for faster switching and less distortion compared to traditional amplifiers. Their compact Starkrimson Mono amplifiers deliver 150 watts per channel with very low noise, and the company provides detailed specifications and measurements that are valued by the audiophile community.
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Expand Details

Product Strengths

  • A very quiet background allows detailed music to emerge clearly
  • Plenty of power (150W into 8 Ohms) exhibits good control, speed and dynamics
  • GaN (Gallium Nitride) technology is used for efficient power throughput and performance, which shakes the bad reputation of Class D amps
  • A neutral sound signature aims to reproduce the recording accurately
  • Compact size allows for flexible placement and short speaker cables
  • Balanced XLR cable connections are required, RCA connections need a separate adapter (sold by Orchard Audio)

Product Considerations

  • Visually, the amps may not appeal to those seeking 'audiophile eye candy'
  • A power cable is not included unless specified
  • A power indicator light is absent
  • In certain system pairings, the sound can be analytical or bright

Comparisons (according to reviewers)

  • Starkrimson provides micron-precise separation, while the First Watt F5 thickens things up a touch
  • Starkrimson offers more power and benefits from being a monoblock chassis, while the Gold Note IS-10 does not
  • Starkrimson offers more power and better control over the bass, as well as speed, compared to the Nakamichi PA-5 Stasis

Takeaway: The Orchard Audio Starkrimson Mono Premium amps deliver power and performance in a small size, and are especially good for audiophiles that seek a neutral sound, lots of detail, and excellent value. These amps could be a great fit for anyone wanting a modern and efficient hifi experience.

Video review

Our take on the brand

Orchard Audio is a direct-to-consumer hifi brand that uses Gallium Nitride (GaN) technology in their Starkrimson amplifiers, which allows for faster switching and less distortion compared to traditional amplifiers. Their compact Starkrimson Mono amplifiers deliver 150 watts per channel with very low noise, and the company provides detailed specifications and measurements that are valued by the audiophile community.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
Product image
SMSL
VMV P2
999
999
/
2
Reviews

Fully balanced design, 4 ultra-low distortion precision linear feedback circuit (PLFC)! The distortion is as low as 0.00006%, and the SNR is as low as 133dB! A total of 99 low-noise op-amps are used in a parallel design. High output power, 16 ohm output power up to 12W, 32 ohms up to 6W; The specially designed volume potentiometer greatly reduces channel deviation; 3 gears gain control, low gain is specially optimized for IEM; Pre-out function, can be used as Hi-End pre-amp; Classic retro toggle switch operation; Ultra-compact design, very suitable for desktop headphone system; High-precision low-temperature drift resistance, performance is not affected by temperature; High-quality relay and non-impact sound design; 20Hz to 100KHz(-0.5dB) frequency response; The headphone amplifier has comprehensive protections such as DC, overvoltage, and overload protection; Built-in high-efficiency and low-noise power system.

SMSL, a Shenzhen-based hifi brand, stands out for its use of advanced chipsets like Infineon's MERUS and ES9039Q2M, which have been objectively verified to deliver exceptionally low noise and distortion levels. The brand has earned acclaim from value-conscious audiophiles.
Check Amazon
Expand Details

Product Strengths

  • Original and stylish design
  • High power output, up to 12 watts
  • Overload protection
  • The XLR, RCA input switch, the headphone amplifier or preamplifier switch, and the low, mid, and high gain switches are located on the back of the unit, potentially making them difficult to access

Product Considerations

  • The unit uses 99 low-noise op-amps in parallel, which is considered excessive and potentially detrimental to sound quality
  • The unit uses the cheapest balanced potentiometer
  • The unit uses a couple of switching power supplies
  • The total harmonic distortion is only at its super magical level with a very high wattage

Takeaway: The VMV amp has high power and overload protection that might work to drive headphones. It could be a great amp for someone willing to try it out.

Video review

Our take on the brand

SMSL, a Shenzhen-based hifi brand, stands out for its use of advanced chipsets like Infineon's MERUS and ES9039Q2M, which have been objectively verified to deliver exceptionally low noise and distortion levels. The brand has earned acclaim from value-conscious audiophiles.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
Product image
Topping
LA90
799
799
/
10
Reviews
Topping Audio is a measurement-focused hifi brand that developed its own proprietary PSRM DAC architecture and NFCA amplifier topology to achieve exceptionally low distortion levels. Their products, from the flagship D90 III Discrete DAC to entry-level interfaces like the E2x2, use advanced technologies like custom I/V conversion stages and high-feedback Class B designs to deliver clean, accurate sound reproduction.
Check Amazon
Expand Details

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

Topping Audio is a measurement-focused hifi brand that developed its own proprietary PSRM DAC architecture and NFCA amplifier topology to achieve exceptionally low distortion levels. Their products, from the flagship D90 III Discrete DAC to entry-level interfaces like the E2x2, use advanced technologies like custom I/V conversion stages and high-feedback Class B designs to deliver clean, accurate sound reproduction.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
Product image
Topping
LA90 (Discrete)
799
799
/
9
Reviews
Topping Audio is a measurement-focused hifi brand that developed its own proprietary PSRM DAC architecture and NFCA amplifier topology to achieve exceptionally low distortion levels. Their products, from the flagship D90 III Discrete DAC to entry-level interfaces like the E2x2, use advanced technologies like custom I/V conversion stages and high-feedback Class B designs to deliver clean, accurate sound reproduction.
Check Amazon
Expand Details

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

Topping Audio is a measurement-focused hifi brand that developed its own proprietary PSRM DAC architecture and NFCA amplifier topology to achieve exceptionally low distortion levels. Their products, from the flagship D90 III Discrete DAC to entry-level interfaces like the E2x2, use advanced technologies like custom I/V conversion stages and high-feedback Class B designs to deliver clean, accurate sound reproduction.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page

What competes at this price?

Fosi
BT20A PRO
115
/
Released
2024
The upgraded version of Fosi Audio BT20A, the BT20A Pro 600W TPA3255 Bluetooth 2.0 CH Amplifier features input via Bluetooth + RCA and output for passive speakers + pre-out.
Check Amazon
Fosi Audio makes quality hifi accessible worldwide by offering a diverse range of amplifiers, preamps, and DACs that blend modern engineering with vintage-inspired design. Their products are engineered for versatility and power, serving both audiophiles and gamers with impressive performance at competitive prices. With a strong reputation built on solid reviews and customer focus, Fosi Audio stands out as a go-to brand for enthusiasts seeking exceptional sound without breaking the bank.
Expand Details

Our Summary

Product Strengths

  • Good sound quality for the price
  • Small and compact size, making it versatile for various setups
  • Includes bass and treble tone controls for sound customization
  • Bluetooth connectivity for wireless streaming
  • Upgraded internals compared to the original BT20A, including a TPA3255 amp chip

Product Considerations

  • Power output may not reach advertised levels without an upgraded power supply (48V recommended)
  • Bluetooth is limited to SBC and AAC codecs
  • No remote control included
  • Speaker binding posts may be too small for larger gauge wires or spade connectors
  • One reviewer pointed out potentially shady past Amazon review practices of the company

Comparisons (according to reviewers)

  • The V3 has a slightly smoother presentation overall, while the BT20A Pro has a bit more 'oomph' or loudness
  • The Pro has more power, preamp output, lower THD—better aesthetics

Takeaway: The Fosi Audio BT20A Pro is a compact and affordable amplifier that delivers surprisingly good sound and offers useful features like Bluetooth and tone controls. It's a great option for those looking for a budget-friendly way to power their speakers in a small space.

Video review

Our take on the brand

Fosi Audio makes quality hifi accessible worldwide by offering a diverse range of amplifiers, preamps, and DACs that blend modern engineering with vintage-inspired design. Their products are engineered for versatility and power, serving both audiophiles and gamers with impressive performance at competitive prices. With a strong reputation built on solid reviews and customer focus, Fosi Audio stands out as a go-to brand for enthusiasts seeking exceptional sound without breaking the bank.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
SMSL
SH-9
289
/
Released
2021
Check Amazon
SMSL, a Shenzhen-based hifi brand, stands out for its use of advanced chipsets like Infineon's MERUS and ES9039Q2M, which have been objectively verified to deliver exceptionally low noise and distortion levels. The brand has earned acclaim from value-conscious audiophiles.
Expand Details

Our Summary

Product Strengths

  • Excellent build quality, featuring a CNC milled aluminum chassis and durable construction
  • Achromatic Audio Amplifier (AAA) technology by THX, aiming for transparent sound reproduction without coloration
  • Relay volume control provides precise channel matching
  • Plenty of power to drive a wide range of headphones, from sensitive IEMs to demanding planars
  • Balanced XLR inputs and outputs

Product Considerations

  • No pre-amp output
  • The notched volume control might not be to everyone's liking
  • Gets quite warm during use, especially with the SU-9 DAC stacked on top
  • Some reviewers noticed a clicking noise when adjusting the volume
  • The three-feet design may not be as stable as a four-feet design

Comparisons (according to reviewers)

  • Vs. SMSL SP200: Better unit at repelling noise, with a higher signal-to-noise ratio and lower total harmonic distortion—completely solved the SP200's issue with not having a pitch-black background
  • Vs. Benchmark HPA4: Very close to the HPA4 in performance, with some minor differences observed only with high-end headphones

Takeaway: The SMSL SH-9 is a well-built and powerful headphone amplifier with a clean, transparent sound. It is a good choice for audiophiles looking for an accurate and detailed listening experience.

Video review

Our take on the brand

SMSL, a Shenzhen-based hifi brand, stands out for its use of advanced chipsets like Infineon's MERUS and ES9039Q2M, which have been objectively verified to deliver exceptionally low noise and distortion levels. The brand has earned acclaim from value-conscious audiophiles.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
SMSL
HO100
217
/
Released
2022
HO100 Headphone Amplifier features an ultra-low distortion precision feedback circuit with distortion as low as 0.00006%, and an ultra-low noise power supply design that outputs noise as low as 1.3uV.
Check Amazon
SMSL, a Shenzhen-based hifi brand, stands out for its use of advanced chipsets like Infineon's MERUS and ES9039Q2M, which have been objectively verified to deliver exceptionally low noise and distortion levels. The brand has earned acclaim from value-conscious audiophiles.
Expand Details

Our Summary

Product Strengths

  • Budget-friendly headphone amplifier focused on quality
  • Robust all-aluminum exterior, with rigid toggle switches, and smooth volume control, giving it the same fit and finish as SMSL's higher-end HO200
  • Delivers a clean, neutral, and transparent sound, faithfully reproducing the source audio without adding coloration
  • Extremely low noise floor
  • Versatile due to its three gain levels (low, mid, high) and its ability to drive both sensitive IEMs and harder-to-drive headphones

Product Considerations

  • Lacks balanced and unbalanced outputs for connecting to powered speakers, functioning solely as a headphone amplifier
  • Does not have preamp capability
  • Reviewers have noted average microdetails
  • While the design looks smart and subdued, the tempered glass panel easily grabs fingerprints, requiring frequent cleaning

Comparisons (according to reviewers)

  • Vs SMSL HO200: HO100 lacks RCA/XLR outputs and has lower wattage, but is more compact and is preferred if the extra power and outputs are not needed
  • Vs FiiO K5 PRO: It has better driving power, a lower noise floor with IEMs, and lower distortion at maximum volume
  • Vs JDS Labs Atom+: It has higher maximum power, handles maximum volume better with lower distortion, and offers better overall detail in the micro detail, and a more relaxing signature

Takeaway: The SMSL HO100 is a compact yet powerful headphone amplifier that delivers clean, neutral sound suitable for various headphones. It is well-built and offers excellent value for audiophiles seeking a high-quality listening experience.

Video review

Our take on the brand

SMSL, a Shenzhen-based hifi brand, stands out for its use of advanced chipsets like Infineon's MERUS and ES9039Q2M, which have been objectively verified to deliver exceptionally low noise and distortion levels. The brand has earned acclaim from value-conscious audiophiles.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
SMSL
SA400
462
/
Released
2021
SA400 Stereo Power Amplifier uses two sta516be digital power amplifier chips, output 230W per channel at 4 ohm, easy to drive most speakers.
Check Amazon
SMSL, a Shenzhen-based hifi brand, stands out for its use of advanced chipsets like Infineon's MERUS and ES9039Q2M, which have been objectively verified to deliver exceptionally low noise and distortion levels. The brand has earned acclaim from value-conscious audiophiles.
Expand Details

Our Summary

Product Strengths

  • Plenty of headroom to drive difficult speakers
  • Nice, clean, and clear sound across all frequency ranges
  • Versatile for different setups, with EQ modes and tone controls
  • Good value for the price
  • Compact size
  • Connectivity options

Product Considerations

  • Only supports aptX Bluetooth codec
  • Mechanical coil noise comes from its power supply
  • Gets hot after about an hour of use, needing good ventilation
  • Slight hum may come from sensitive tweeters
  • Can sound dull in direct mode

Comparisons (according to reviewers)

  • Stronger bass output than KECES S300
  • SMSL SP400 has a similar neutral presentation

Takeaway: The SMSL SA400 is a powerful and versatile integrated amplifier with a clean sound that can drive most speakers with ease. It is a good option for those looking for a compact amplifier with plenty of features and the ability to adjust the sound to their liking.

Video review

Our take on the brand

SMSL, a Shenzhen-based hifi brand, stands out for its use of advanced chipsets like Infineon's MERUS and ES9039Q2M, which have been objectively verified to deliver exceptionally low noise and distortion levels. The brand has earned acclaim from value-conscious audiophiles.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
SMSL
SH-8S
229
/
Released
2021
SH-8S Headphone Amplifier features an ultra-low distortion precision linear feedback circuit (PLFC), with distortion as low as 0.00006%! It has an ultra-low noise power supply design, with output noise as low as 1.3uV.
Check Amazon
SMSL, a Shenzhen-based hifi brand, stands out for its use of advanced chipsets like Infineon's MERUS and ES9039Q2M, which have been objectively verified to deliver exceptionally low noise and distortion levels. The brand has earned acclaim from value-conscious audiophiles.
Expand Details

Our Summary

Product Strengths

  • Enjoyable overall presentation with a punchy bassline, slightly euphonic midrange, and crystalline treble response
  • Expansive soundstage that allows the music to breathe and come to life
  • Enough power to drive most moderately hard-to-drive headphones, even those with higher impedance
  • Detailed and textured vocal range that is a touch more forward and warmer than clinically accurate
  • Tactile controls allow quicker access to changing any of the settings on the device

Product Considerations

  • Slight bright tilt, which may require careful pairing with other components
  • Bass is present, but slightly rolled off
  • Lacks a screen, which some users may find to be a downside
  • Balanced connection is present for convenience, as the amplifier itself is not a differential design—meaning it's single-ended by nature

Comparisons (according to reviewers)

  • SMSL SH-8s bass tends to be a touch more forward, SMSL SH-9 delivers a slightly tighter bass line
  • The SMSL SH-9 has a markedly more controlled treble response
  • Both have similar power output at 16Ω, but Topping A30 Pro maintains higher power at 32Ω
  • The SMSL SH-8s has a fuller instrument timbre, but Topping A30 Pro has a more euphonic vocal range
  • The SMSL SH-8s has much bigger headroom, and feels more spacious compared to the Geshelli Labs Archel 2.5 Pro
  • The SMSL SH-8s is clearly digging more details, and is also able to develop a wider soundstage with better separation and layering than the Topping L30

Takeaway: The SMSL SH-8s is a well-built amplifier that sounds promising. If the listener has darker sounding headphones or a darker source, the SMSL SH-8s might be worth checking out to open the sound a little bit.

Video review

Our take on the brand

SMSL, a Shenzhen-based hifi brand, stands out for its use of advanced chipsets like Infineon's MERUS and ES9039Q2M, which have been objectively verified to deliver exceptionally low noise and distortion levels. The brand has earned acclaim from value-conscious audiophiles.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page

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