SMSL AO300 Class D Amplifier MA5332MS Headphone Amplifier DAC CS43131 2x165W 4Ω 32bit 768kHz DSD256 MQA Black

SMSL AO300 Amplificateur Class D MA5332MS Amplificateur Casque DAC CS43131 2x165W @ 4Ω 32bit 768kHz DSD512 MAQ-CD Noir
SMSL unveils with the AO300, a versatile Hi-Fi device that fulfills the functions of DAC, amplifier and headphone amplifier. Powerful and high-quality, it integrates high-end components: a MA5332MS Class D amplifier chip, a CS43131 DAC chip and an XU316 XMOS USB interface.

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Shipping date: 21-02-2024.

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SMSL AO300

Class D Amplifier MA5332MS Headphone Amplifier DAC CS43131 2x165W 4Ω 32bit 768kHz DSD256 MQA Black

SMSL AO300 Class D Amplifier MA5332MS Headphone Amplifier DAC CS43131 2x165W @ 4Ω 32bit 768kHz DSD256 MAQ-CD Black

SMSL unveils with the AO300, a versatile Hi-Fi device that fulfills the functions of DAC, amplifier and headphone amplifier. Powerful and high-quality, it integrates high-end components: a MA5332MS Class D amplifier chip, a CS43131 DAC chip and an XU316 XMOS USB interface. These components enable it to decode up to PCM 32bit 768kHz, DSD up to DSD256 and MQA. In terms of amplification performance, the AO300 is capable of delivering up to 2x165W under 4Ω and 2x85W under 8Ω with a THD+N of just 0.003%. Being versatile, it features complete and varied connectivity integrating Bluetooth functionality, an HDMI ARC input port as well as a Subwoofer output allowing you to enjoy a 2.1-channel system for a more immersive experience. A Jack 4.4mm balanced headphone output and a Jack 6.35mm output are also present on the front panel.

SMSL AO300 Class D Amplifier MA5332MS Headphone Amplifier DAC CS43131 2x165W @ 4Ω 32bit 768kHz DSD256 MAQ-CD Black

High-end components for high performance

SMSL AO300 Class D Amplifier MA5332MS Headphone Amplifier DAC CS43131 2x165W @ 4Ω 32bit 768kHz DSD256 MAQ-CD Black

MA5332MS amplification chip

The MA5332MS is a Class D stereo amplifier chip. This MCM (multi-chip module) solution integrates 4 MOSFET transistors. It enables the A0300 to deliver power up to 2x165W under 4Ω and 2x85W under 8Ω.

SMSL AO300 Class D Amplifier MA5332MS Headphone Amplifier DAC CS43131 2x165W @ 4Ω 32bit 768kHz DSD256 MAQ-CD Black

CS43131 DAC chip

The Cirrus Logic CS43131 chip is a DAC chip integrating a low-noise, high-fidelity headphone amplifier. In fact, this chip is capable of driving audiophile headphones with an impedance of 600Ω and an output power of 5mW per channel. With a 32Ω load, it delivers 32mW per channel.

SMSL AO300 Class D Amplifier MA5332MS Headphone Amplifier DAC CS43131 2x165W @ 4Ω 32bit 768kHz DSD256 MAQ-CD Black

XMOS XU6316 USB interface

The AO300's USB-C input is complemented by XMOS's flagship XU316 interface. This enables it to support high-resolution audio streams up to PCM 32bit 768kHz and DSD up to DSD256.

Bluetooth functionnality

The AO300 features a Bluetooth receiver chip and supports high-resolution codecs such as aptX HD and LDAC. So, you can easily enjoy audio sources like your smartphone for remote use.

SMSL AO300 Class D Amplifier MA5332MS Headphone Amplifier DAC CS43131 2x165W @ 4Ω 32bit 768kHz DSD256 MAQ-CD Black

HDMI ARC input port and subwoofer output

SMSL has integrated an HDMI ARC input port, so you can enjoy high-quality sound reproduction with your TV as the audio source. To this is added a subwoofer output to transform your Hi-Fi installation into a 2.1-channel system and obtain an immersive rendering with active subwoofer. SMSL's AO300 can therefore be used as a small home-cinema amplifier. 

SMSL AO300 Class D Amplifier MA5332MS Headphone Amplifier DAC CS43131 2x165W @ 4Ω 32bit 768kHz DSD256 MAQ-CD Black

MQA Support

The AO300's optical Toslink and coaxial inputs support MQA and MQA-CD (Master Quality Authenticated) streams, thanks to an MQA decoder for the richest, most detailed sound reproduction possible. This amplifier/DAC therefore offers the possibility of enjoying professional audio quality, with retransmission as close as possible to the original sound recorded and processed in the studio.

SMSL AO300 Class D Amplifier MA5332MS Headphone Amplifier DAC CS43131 2x165W @ 4Ω 32bit 768kHz DSD256 MAQ-CD Black

Available filters and EQs

SMSL has gone one step further with the AO300, integrating 8 EQ and 5 filter options to adjust tone and sound quality to your listening preferences. 

SMSL AO300 EQs:

  • Direct
  • Superbass
  • Tone
  • Rock
  • SDB
  • Soft
  • Bass
  • Clear

SMSL AO300 filters:

  • Latency filter: "Fast and Low"
  • Compensated filter: "Fast and phase"
  • Latency filter: "Slow and low"
  • Compensated filter: "Slow and phase"
  • Nonoversampling filter
SMSL AO300 Class D Amplifier MA5332MS Headphone Amplifier DAC CS43131 2x165W @ 4Ω 32bit 768kHz DSD256 MAQ-CD Black

Remote control

The AO300 comes with a full-featured remote control. It includes basic play/pause/previous/next functions, volume control, as well as menu access and source selection.

A wide range of connectors

SMSL AO300 Class D Amplifier MA5332MS Headphone Amplifier DAC CS43131 2x165W @ 4Ω 32bit 768kHz DSD256 MAQ-CD Black
1Display
2Volume control
3Balanced heaphone output Jack 4.4mm
4Headphone output Jack 6.35mm
5Stereo RCA input
6Coaxial input
7Subwoofer output
8Bluetooth antenna connector
9USB-C input
10Optical Toslink input
11HDMI ARC input
12Speaker terminals
13IEC power connector and ON/OFF switch

Technical characteristics

Specifications
Product typeAmplifier
DAC
Headphone amplifier
DAC chipCS43131
Amplifier chipMA5332MS
USB interfaceXMOS XU316
Inputs1* Stereo RCA line
1* Coaxial SPDIF
1* Optical Toslink
1* USB-C
1* HDMI ARC
Bluetooth
OutputsSpeaker terminals
1* Subwoofer output
1* Jack 4.4mm balanced headphone output
1* Jack 6.35mm headphone output
Output power2x165W @ 4Ω
2x85W @ 8Ω
THD+N0.003%
SNR107dB
Channel separation98dB
Input sensitivity / Input impedance280mV / 22kΩ
USB transmission typeUSB 2.0 asynchronous
USB compatibilityWindows 7/8/9/10/11
Mac OSX
Linux
Supported sample ratesUSB : PCM 32bit 768kHz, DSD256 and MQA
Optical and Coaxial : PCM 24bit 192kHz, DSD64 (DoP) and MQA-CD
General
Power consumption40W (with normal volume)
Dimensions219*42*185mm
Weight1.52kg
ColorBlack
Package1* SMSL AO300
1* Remote control
1* Power cable
1* USB-A to USB-C cable
1* HDMI cable
1* Bluetooth antenna
 
Data sheet
InputOptical
InputHDMI ARC
InputUSB
InputSPDIF
InputBluetooth
InputRCA
OutputSubwoofer
OutputSpeaker terminal
DAC / ADC ChipCS43131
Max sampling rate768kHz
Max sampling rateDSD512
Max sampling rateMQA
ColorBlack
Channel2.1
Channel2 (Stereo)
ClassClass D / T
Amplifier chipInfineon MA5332M
Power (W)165.0
NetworkingNo
Remote ControlYes
 
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Average votes
4.3 / 5
3 reviews
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Note :
 5/5
Date :
SMSL katastrofa
Je suis très triste après avoir acheté cet équipement SMSL AO300, pour ce genre d'argent, vous ne pouvez pas écouter de la musique, comment pouvez-vous produire un équipement aussi mauvais pour écouter de la musique. SMSL honte à vos ingénieurs
 (0)
 (1)
This review has been posted for SMSL AO300 Class D Amplifier MA5332MS Headphone Amplifier DAC CS43131 2x165W 4Ω 32bit 768kHz DSD256 MQA Black
Note :
 3/5
Date :
Good sound but bad usability
I bought this DAC/Amp to power my ELAC Debut 2.0 B5.2 speakers in a desktop setup. I assumed I wasn't going to need a lot of power and I was right: out of a maximum volume of 60 I usually set it 20-25, and I go up to 35 to make it loud. Sound quality is very good for me, clean and crisp, no audible background noise for me. Do note that I'm no audiophile, this is my first hi-fi setup.

I connected my computer using the USB-C port, having a USB DAC was one of the main points for me as I was using my integrated sound card until then. The provided cable is pretty short, about 1 meter, it was just enough to make the connection. I use Linux and it was recognized and configured automatically, I just had to choose the digital output profile instead of the default analog one.

I like the included EQs, especially SDB for rock/metal/electronic music and Clear for other genres.

My big complain with the SMSL AO300 is about the interface usability:

- When you use the dial to access the menu you have no way of going back to the main screen, have to wait a few seconds to adjust the volume. Even worse is that this happens even when using the remote, where you have dedicated volume buttons, but they don't work in the menu screen. You can press left in the remote to go back to the main screen, but it's one extra button press for no good reason.

- Output doesn't automatically switch to headphones when plugged, you need to manually change it through the menu. The remote has a button to change input, but not one to change output.

- The FN button in the remote only turns the screen on and off. The manual says "Define in the menu", but there's nothing in the menu to program its function, and nothing I've tried works. Maybe they forgot to code it? Very infuriating.

- A button in the remote to quickly change EQ would have been nice. If FN button could be programmed (see above) it would solve this for me.

- The remote up/down/left/right buttons do nothing in the main screen. They could've allowed mapping them to quick access to functions, e.g. to quickly change Output, EQ, Filter...

I believe these changes are not hard to implement, just a matter of having someone properly think about the end-user experience. For this reason I'm taking two stars in the hope that they release a firmware update to fix as many of these issues as they can. If they do I'd be happy to update my review to 5 stars if all issues get addressed.
 (1)
 (0)
This review has been posted for SMSL AO300 Class D Amplifier MA5332MS Headphone Amplifier DAC CS43131 2x165W 4Ω 32bit 768kHz DSD256 MQA Black
Note :
 5/5
Date :
Diabolique ce truc
Assis sur mon derrière, toutes mes références sont tombées. Je croyais que pour choisir un ampli, il fallait qu'il soit tres lourd et très cher. Ce truc de moins de 2 kilos, tout petit, enterre des amplis à 4 chiffres tranquille. Les idiophiles ont de quoi s'inquiéter les grands constructeurs aussi. Choisir des bons cables et une bonne source, ca ne pardonne rien.
 (1)
 (0)
This review has been posted for SMSL AO300 Class D Amplifier MA5332MS Headphone Amplifier DAC CS43131 2x165W 4Ω 32bit 768kHz DSD256 MQA Black
 
SMSL AO300 Class D Amplifier MA5332MS Headphone Amplifier DAC CS43131 2x165W 4Ω 32bit 768kHz DSD256 MQA Black
SMSL unveils with the AO300, a versatile Hi-Fi device that fulfills the functions of DAC, amplifier and headphone amplifier. Powerful and...

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