Manufacturer | SMSL |
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Place of Business | SMSL |
Item model number | AO200-MKII |
Product Dimensions | 21 x 19.6 x 4.1 cm; 1.6 kg |
ASIN | B0CCVBZS9R |
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SMSL AO200 MKII MK2 MA5332MS Class D Amplifier, 160W 2 Channel Power Amplifier, USB/BT/XLR/RCA Input Stereo Amplifier for Home Speakers/Subwoofer
Purchase options and add-ons
Item dimensions L x W x H | 21 x 19.6 x 4.1 Centimetres |
Voltage | 110 Volts |
Manufacturer | SMSL |
Mounting type | Freestanding |
Brand | AOSHIDA |
Number of channels | 2 |
Output power | 1.6E+2 Watts |
Package type | Boxed |
Specification met | Meets Technical Specifications |
About this item
- MA5332MS Amplifier Chip — Infineon's class D amplifier chip boosts efficiency up to 92%, delivering 160Wx2(4Ω) output power for a powerful, immersive listening experience
- Enhanced Connectivity — Offers various input options like USB, BT, RCA and XLR, expanding compatibility with multiple audio sources and devices
- Balanced Design — Featuring a balanced input design, reducing signal transmission distortion and maintaining audio clarity from input to speaker output
- Versatile Speaker Compatibility — Built-in SMSL SDB sound and treble/bass adjustment cater to various speaker types, allowing easy audio customization
- Subwoofer Output — The AO200-MKII with subwoofer signal pre out, easy to connect the active subwoofer to form a 2.1 system, and it still supports active speaker output
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Product information
Technical Details
Additional Information
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Product details
- Product Dimensions : 21 x 19.6 x 4.1 cm; 1.6 kg
- Date First Available : July 27 2023
- Manufacturer : SMSL
- Place of Business : SMSL
- ASIN : B0CCVBZS9R
- Item model number : AO200-MKII
- Country of origin : China
- 鶹 Rank: #63,564 in Electronics (See Top 100 in Electronics)
- #282 in Audio Component Amplifiers
- Customer Reviews:
Safety and product resources
Safety documents
Product Description

- The design of the AO200 MKII draws inspiration from its predecessor, the AO200. In this version, we have retained the interface design of the AO200, including the digital interface and balanced design points. SMSL has introduced the new power amplifier chip, MA5332, in this iteration, enhancing the potency of this new version. : )
- At the heart of the AO200 MK2 lies the MA5332 digital high-power amplifier chip from Infineon. This chip not only augments power but also encapsulates qualities of quality, efficiency, and minimal power consumption. Impressively, the AO200 MK2 boasts an output of 160W per channel at 4 ohms, surpassing its predecessor's 90W thrust at the same impedance, thereby endowing an intensified auditory immersion.
- Furthermore, the electronic volume control chip within the AO200 MK2 employs NJRC NJW1194, ensuring meticulous volume management with minimal distortion. Its balanced design, meticulously crafted from input to speaker output, mitigates signal transmission-induced distortion, thus preserving the audio's integrity.
- Considering durability, the AO200 MK2 features a precision-machined all-aluminum alloy CNC housing, adorned with anodization and chamfering techniques.
- SMSL AO200 MK2 amalgamates BT5.0 reception, high/low tone adjustment, and subwoofer output functionalities. Immerse yourself in its might, precision, and artistry, as it embarks you on a distinctive auditory odyssey like no other.
Tech Specs
Product Model | AO200 MKII |
Input | BT5.0 / USB / XLR/ RCA |
THD+N | 0.004% |
SNR | 106dB |
Channel Separation | 85dB |
Input Sensitivity/Impedance | 290/47Ω |
Output Power | 160Wx2(4Ω) / 85Wx2(8Ω) |
Power Consumption | 40W (Normal Volume) |
Standby Power | 0.5W |
Size | 210 x 41 x 196mm (WxHxD) |
Weight | 1.6kg |
Accessories | 1 * AO200 MKII, 1 * BT Antenna, 1 * AC Cable, 1 * USB Cable, 1 * User Manual; |
Appearance Details

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What is the output power of the AO200 MK2?
SMSL AO200 MK2 offers an output power of 160Wx2 at 4Ω and 85Wx2 at 8Ω, providing robust and dynamic sound reproduction for an immersive listening experience. It's an upgrade from the original AO200 which had a lower output power.
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What are the key features of the SMSL AO200 MK2?
SMSL AO200 MK2 boasts features like the MA5332MS Amp Chip, NJW1194 Volume Control Chip, Bluetooth 5.0, Subwoofer 2.1 support, built-in EQ, USB input, treble/bass adjustment, balanced input, full function remote control, and more.
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How does the balanced design of the AO200 MK2 improve audio quality?
The balanced input design of the AO200 MK2 reduces distortion during signal transmission and minimizes various types of noise. This ensures better performance and prevents the loss of audio quality during transmission.
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What are the advantages of the new Infineon MA5332MS amplifier chip in the AO200 MK2?
The Infineon MA5332MS amplifier chip is known for its higher quality, efficiency, and low energy consumption. This chip contributes to improved audio dynamics and reduced power consumption, enhancing the overall performance of the AO200 MK2.
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What's included in the AO200 MK2 package?
SMSL AO200 MK2 package includes the amplifier itself, an AC cable, Bluetooth antenna, USB cable, user manual, remote control. These accessories basically ensure you have everything you need to set up and enjoy the amplifier.
From the brand

AOSHIDA HiFi
Enjoy the fun of HiFi music.
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- AOSHIDA Audio Technology Company was formally established in 2014, specializing in the supply and production of audio products.
- We are one of the Chinese agents of the following brands: TOPPING, SMSL, GUSTARD, SINGXER, MUSICIAN, AOSHIDA, TANCHJIM, LETSHUOER, etc.
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SMSL Audio
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TOPPING Audio
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GUSTARD Audio
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MUSICIAN & Dilvpoetry
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Earphone
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How we get our start?
AOSHIDA Audio Technology Company was formally established in 2014. For nearly 10 years, we have served music lovers, audiophiles, and professionals.
What makes our products unique?
AOSHIDA has an established relationship with major manufacturers, and is the exclusive seller of AOSHIDA and MUSICIAN brands. We are also a seller for all major manufacturers, including TOPPING, S.M.S.L, GUSTARD, SINGXER, SHANLING, TANCHJIM, LETSHUOER, KZ, and more.
Are our products high quality?
The products sold are 100% authentic and have been inspected by the manufacturer.
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Compare with similar items
This Item ![]() SMSL AO200 MKII MK2 MA5332MS Class D Amplifier, 160W 2 Channel Power Amplifier, USB/BT/XLR/RCA Input Stereo Amplifier for Home Speakers/Subwoofer | Recommendations | |||||
Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | |
Price | $349.00$349.00 | -10%$62.99$62.99 Was: $69.99 | $199.99$199.99 | $247.00$247.00 | $283.99$283.99 | $149.99$149.99 |
Delivery | Get it by Wednesday, Jul 2 | Get it by Wednesday, Jul 2 | Get it by Wednesday, Jul 2 | Get it by Wednesday, Jul 2 | Get it by Wednesday, Jul 2 | Get it by Wednesday, Jul 2 |
Customer ratings | ||||||
Sold by | Aoshida Audio-CA | Fosi Audio | Fosi Audio | Auins Hifiman | Yima Top | Douk Audio Direct |
number of channels | 2 | 1 | 2 | 2 | 2 | 2 |
voltage | 110 volts | 230 volts | 48 volts | 240 volts | 48 volts | 32 volts of direct current |
output power | 160 watts | 100 watts | 235 watts | 165 watts | 140 watts | 600 watts |
specification met | Meets Technical Specifications | [Inf] Thd <= 0.04% and Frequency Range 20hz - 120hz | — | FCC | FCC | CE |
mounting type | Freestanding | Tabletop | Surface Mount | Freestanding | — | — |
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Brands in this category on 鶹
Customer reviews
Reviews with images

Incredible performance for a budget amplifier
Top reviews from Canada
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- Reviewed in Canada on March 14, 2025Verified PurchaseBeen listening to it for the last 250 hours and here are my thoughts. Look, finish and quality is excellent. In a subjective matter, in comparison with my Fosi V3 it replace, it sounds a tad more oommph in the low's and a tad more sound stage, which is an interesting improvement for my setup. Internal dac is in theory a better chip than my Topping D10s; awkward USB A rear connector but there is a provided cable for and; when plugged to the pc as the soundcard, if the input of the amp is not usb, it is not visible by windows. It appears as an output device only when the input is set to USB.
It might be a bummer if at your workstation you need to switch often of inputs between pc and other devices. All in all, it seems that for the price and my budget, I've reach a satisfactory quality and features limit without breaking the bank too much. For any 2.1 setup that needs a remote control (volume and inputs selection), haven't tried everything's on the market, this little amp is high on the list of recommendations. :)
- Reviewed in Canada on June 17, 2024Verified PurchaseThis AO200MK II replaces a little Fosi T3 hybrid amp that cost less than $150. For about double the price of the Fosi, you get an integrated amp with balanced XLR and single-ended RCA input jacks, plus Bluetooth (supports LDAC), coax, optical and USB C digital connections, and that can produce about 3X as much clean output power in a smaller case. It sounds fantastic using the analog XLR or RCA inputs from a good DAC (I tried the SMSL D-6 and DO300EX), or a quality DAP. Using the internal Bluetooth and USB-A digital inputs gives less stellar results - still fine but not superb. It also has a line-level subwoofer output to feed an active sub. I am using this amp with Klipsch RB-5 bookshelves and 10" active sub, and it hands-down spanks that little Fosi with any quality recording. While the T3 had good imaging and a reasonably flat frequency response, the AO200 MK2 has more of everything: better frequency extension on both ends, a more natural midrange and an ability to paint an almost holographic sound picture that goes well outside the arc of the speakers with well-defined instrument and vocal placement that is almost palpable. With LDAC, the Bluetooth performance from a good DAC or DAP comes very close to the wired XLR analog inputs. The fact that one can get this high standard of quality sonics for less than $400 is a testament to the designers and techs at SMSL, and would have cost multiple thousands even a decade or two ago.
5.0 out of 5 starsThis AO200MK II replaces a little Fosi T3 hybrid amp that cost less than $150. For about double the price of the Fosi, you get an integrated amp with balanced XLR and single-ended RCA input jacks, plus Bluetooth (supports LDAC), coax, optical and USB C digital connections, and that can produce about 3X as much clean output power in a smaller case. It sounds fantastic using the analog XLR or RCA inputs from a good DAC (I tried the SMSL D-6 and DO300EX), or a quality DAP. Using the internal Bluetooth and USB-A digital inputs gives less stellar results - still fine but not superb. It also has a line-level subwoofer output to feed an active sub. I am using this amp with Klipsch RB-5 bookshelves and 10" active sub, and it hands-down spanks that little Fosi with any quality recording. While the T3 had good imaging and a reasonably flat frequency response, the AO200 MK2 has more of everything: better frequency extension on both ends, a more natural midrange and an ability to paint an almost holographic sound picture that goes well outside the arc of the speakers with well-defined instrument and vocal placement that is almost palpable. With LDAC, the Bluetooth performance from a good DAC or DAP comes very close to the wired XLR analog inputs. The fact that one can get this high standard of quality sonics for less than $400 is a testament to the designers and techs at SMSL, and would have cost multiple thousands even a decade or two ago.Incredible performance for a budget amplifier
Reviewed in Canada on June 17, 2024
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- Reviewed in Canada on June 13, 2024Verified PurchaseI use with my mac mini line out and with a Loxie D40 using the balanced connection , on my desk with a pair of Micca RB42, it works great, more than enough in a small room ,no noise at low volumen and having the subwoofer output let you have a complete 2.1 system. it handles very well the 8 Ohm 85db speakers .
- Reviewed in Canada on November 18, 2024Verified PurchaseComments:
Sad : don't usually review, I don't know why this is highly reviewed on 鶹 , the screen is terrible the menu is horrific , no bass and if you use the EQ the bass distort so bad it will damage your speakers , they put the money in the body build quality as yes it looks really good and that's about it , the cheeper all in one crylic A50+ puts this to shame! Honestly disappointed.
My speakers are paradigm S2
My streamer is eversolo DMP 6
- Reviewed in Canada on February 5, 2025Verified PurchaseOrdered an AO200 MKII but received the old version AO200 in the box. 3 weeks for a refund. I wanted to order again but no one at 鶹 or Aoshida can guaranty or confirmed what I will receive.
Waste of time and money. I now looking to buy somewhere else.
I would give 3.5 for the trouble and 4 for the quality.
I finaly decided to buy the same unit as a replacement, the quality of the MKii is outstanding at this price. 鶹 and Aoshida where kind enough to give me a little discount but the trouble was not needed.
- Reviewed in Canada on September 25, 2023Verified PurchaseReceived this integrated in excellent condition and sounds great as I expected! Definitely sounds like a $2000 to 5000 integrated amplifier. Great customer service from seller Aoshida as usual!
- Reviewed in Canada on May 22, 2024Verified PurchasePerfect high quality sound with speakers Quest Q885.
Perfect high quality sound with speakers Quest Q885.
Images in this review
- Reviewed in Canada on October 1, 2023Verified PurchaseA budget class D amplifier with high power and very good sound quality.
Top reviews from other countries
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denis faureReviewed in France on July 12, 2024
5.0 out of 5 stars Ampli intégré numérique
Verified PurchaseAprès essai de toutes les fonctionnalités de l’amplificateur, je suis très satisfait aussi bien sûr la fonctionnalité que sur les qualités Audio branchés sur des enceintes, Mission de résultat est vraiment très bon, rapport qualité, prix imbattable !
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Giorgio Pav.Reviewed in Italy on December 19, 2024
5.0 out of 5 stars Qualità audio e potenza
Verified PurchaseIngressi bilanciati, qualità e raffinatezza del suono, potenza in grado di pilotare in modo ottimale altoparlanti con bassa efficienza tipo 83db /1 watt e, importante in questi tempi, con un bassissimo consumo energetico, affidabilità.
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bastar89Reviewed in Germany on February 16, 2025
5.0 out of 5 stars Bin sehr zufrieden!
Verified PurchaseBetreibe das Gerät als Desktop Verstärker über einen SMSL D6s DAC mit Heco Aurora 200 Boxen und einem Mivoc Hype 10 G2 Aktiv Sub.
Der Sound ist super! Besser geht immer, aber ich bin mehr als zufrieden! Konnte mich schwer entscheiden zwischen dem Fossi ZA3 und dem SMSL AO200MK2. Der ZA3 hat interessante Features die ihn sehr attraktiv machen... Wer sucht sollte sich auch den ZA3 anschauen! Jedenfalls bin ich sehr zufrieden mit dem AO200MK2 in meinem Setup! Zum besseren Abstimmen am PC empfehle ich den APO EQ.