SMSL AO300 PRO DAC Amplifier, 2-Channel, 165W

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Product guide

SMSL AO300 PRO DAC Amplifier, 2-Channel, 165W

AOSHIDA: SMSL AO300 PRO is a freestanding, two-channel DAC amplifier that combines speaker amplification, digital and analogue inputs, and headphone outputs. Its listed power figures vary by speaker impedance, while the HDMI eARC connection and remote may suit a TV-centred desktop or home audio system.

At a glance

Combines a DAC, speaker power amplifier and headphone amplifier in one unit.
The listing gives separate output figures for 4Ω and 8Ω loads. Match the relevant figure to your speakers rather than treating the 165W headline as unconditional.
USB, optical, coaxial and RCA inputs provide several wired source options. HDMI eARC is listed for TV audio.
Offers 4.4mm balanced and 6.35mm headphone connections, plus EQ modes and selectable filters.
The claimed TV power and volume synchronisation requires a CEC-compatible TV.

Price

£203.15Save 15%

Reference price: ~~£239.00~~

Price checked: 14 Nov 2026

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Pros and cons

Pros

One chassis handles digital conversion, speaker amplification and headphone listening.
Multiple wired inputs and HDMI eARC can accommodate a computer, TV or other audio sources.
The listed speaker output is specified separately for 4Ω and 8Ω loads.
The manufacturer lists both balanced 4.4mm and 6.35mm headphone outputs.

Technical specifications

21 specifications

Identity
Brand	AOSHIDA
Model	AO300 PRO

Amplifier and audio
Maximum output power	165W
Number of channels	2
Output at 4Ω	165W×2 at 4Ω
Output at 8Ω	85W×2 at 8Ω
Power amplifier chip	MA5332MS
DAC chip	CS43131
USB interface	XMOS XU-316
USB PCM support	PCM 32bit/768kHz
DSD support	DSD256
MQA support	full USB MQA decoding formats
Distortion claim	0.003%
Headphone outputs	4.4mm balanced output and a 6.35mm headphone jack
EQ modes	8 EQ audio modes
Digital filters	5 filters

Connectivity
Inputs	optical, coaxial, USB, and RCA wired inputs
TV audio	HDMI eARC
HDMI eARC maximum sampling rate	192 kHz
Subwoofer expansion	2.1-channel subwoofer expansion

Dimensions and installation
Mounting types listed	Freestanding

What to know before buying

Listing details to confirm

The power claims are load-specific: 165W×2 at 4Ω and 85W×2 at 8Ω. The title's 165W shorthand should not be read as the stated output for every speaker impedance. HDMI eARC synchronised power and volume control requires a CEC-compatible TV, and the eARC claim specifies a maximum sampling rate of 192 kHz. The listing also calls the unit 2.1-channel while the channel-count field says 2. It describes 2.1-channel subwoofer expansion, so confirm the intended connection and configuration before purchase.

What’s in the box

Included

AC cable
AO300 PRO amplifier
HDMI cable
Remote control
USB cable

Who is it for?

A good fit for

Listeners combining passive-speaker amplification, a DAC and headphone outputs in one freestanding unit.
Desktop or home users with USB, optical, coaxial or RCA sources.
TV users seeking HDMI eARC audio return, provided their TV supports CEC for synchronised controls.
Buyers who want multiple EQ modes and digital filter options.

Less suited to

Buyers who need a product with an unambiguous 2.1-channel configuration without checking how the subwoofer expansion works.
Users who need TV synchronisation but do not have a CEC-compatible TV.

SMSL AO300 PRO DAC Amplifier, 2-Channel, 165W · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.2 / 5 · 122 ratings

5 stars66%66%
4 stars16%16%
3 stars2%2%
2 stars3%3%
1 star13%13%

Customer feedback is positive about sound quality and power, including reports of driving bookshelf and tower speakers, while reliability and connectivity experiences are mixed. That feedback is relevant to a unit intended to combine speaker amplification, digital inputs and HDMI eARC, but it does not establish how any individual system will perform. Buyers relying on HDMI should pay particular attention to the reported connectivity concerns and the listing's CEC condition.

Positive themes

Customers describe the sound quality positively and report that the amplifier can drive bookshelf and tower speakers.

Mixed feedback

Feedback on reliability is mixed, with reports ranging from continued operation to units stopping after a few months.
Connectivity feedback is mixed, including a report of HDMI functionality trouble.

Frequently asked questions

Does the AO300 PRO support a subwoofer?

The listing claims 2.1-channel subwoofer expansion, but also gives a channel count of 2. Check how the subwoofer connection is implemented if that configuration matters to you.

What speaker output power does the listing claim?

It states 165W×2 at 4Ω and 85W×2 at 8Ω. These are impedance-specific claims, not one output figure for all speakers.

Can it connect to a TV using HDMI?

The listing specifies HDMI eARC audio return. CEC-compatible TV support is required for the stated synchronised power and volume controls.

Which headphone connections are listed?

The listing names a 4.4mm balanced output and a 6.35mm headphone jack.