# 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.

- [Original product page](https://bargainpostbox.co.uk/product/smsl-ao300-pro-dac-amplifier)
- [View offer](https://bargainpostbox.co.uk/visit/smsl-ao300-pro-dac-amplifier)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: AOSHIDA
- Model: AO300 PRO
- Category: Electronics > Media Players & Projectors > Receivers & Amplifiers
- Price: 203.15 GBP
- Previous price: 239.00 GBP
- Discount: 15%
- Price checked: 2026-11-14T09:54:56.002Z
- Rating: 4.2 / 5
- Reviews: 122

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## 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.

## 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.

## 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

## Before you buy

- 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.

## In the box

- AC cable (Included)
- AO300 PRO amplifier (Included)
- HDMI cable (Included)
- Remote control (Included)
- USB cable (Included)

## 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.

## Customer feedback

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.
- Mixed feedback: 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.

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## Images

![SMSL AO300 PRO DAC Amplifier, 2-Channel, 165W — 1](https://bargainpostbox.co.uk/i/xWE-DJlN35GJJwZ8iPzMDAG4QTL2Rn9HzJfEGL57UhTwLuwXI2zuywhaaPkw6F8R_JWNQ1xLrxPeM4V5oS6oGrWI_feXq8Z_699Y_wsNua6bCAzwzBCeB1D6.jpg)

![SMSL AO300 PRO DAC Amplifier, 2-Channel, 165W — 2](https://bargainpostbox.co.uk/i/OExo4Qk-e8_IeU2EYEk365SbGIWYKvquQrJaYrfqgydbZswdv5LhU0mOeBDEKF67-9UhSmAg9hl0JOw0ybRZjhOdlsvloM3hYLkog7QXM8_LFrj778ZN96JU.jpg)

![SMSL AO300 PRO DAC Amplifier, 2-Channel, 165W — 3](https://bargainpostbox.co.uk/i/xJAXwFwrdcOXQ_rN4FFIugR2x6SIuu5xCyVvQEVZaqe-hlaRDKJWKbEGFgSjtSvhrCAvONe1CJnPtZMjf_r7nWme5HiS-pXujhlCfr3pZqKHYsC1en4vPPYc.jpg)

![SMSL AO300 PRO DAC Amplifier, 2-Channel, 165W — 4](https://bargainpostbox.co.uk/i/KYVT2o8TKtWQwx7S8lZUgQGsZqvbA05OTJuFCHhjuDiZp6QADnojTPqZcTexY-KjuoBGEPOKJux98JSFWjdzWKdv-obWS51YL5NGCLiE0vocNDqBFds_cZ9f.jpg)

![SMSL AO300 PRO DAC Amplifier, 2-Channel, 165W — 5](https://bargainpostbox.co.uk/i/orWH6exhwdUc9N8NMKoaPKAU0AO_zXK8MZuwY2Ulg35U8nxhHulrqYE9srmOMuTq8XZY3bzEOFhcyZNuhjVdV4T-3AmnfcjMS9RDWt7dKqPOwXmcR9MJE8tb.jpg)

![SMSL AO300 PRO DAC Amplifier, 2-Channel, 165W — 6](https://bargainpostbox.co.uk/i/2cnCcuPrBGNOP5r3bzYREHTYQ9zKiBVVHCcs_YRXp1YstLOdquzWnUYkKK0BlIngM2f9fpbPPBcpiXSCLHMFGZKVTpxtJRWnlEg-5LGbLfSQWhIt3viHeiY4.jpg)

![SMSL AO300 PRO DAC Amplifier, 2-Channel, 165W — 7](https://bargainpostbox.co.uk/i/yPeIAJPlYPnEtdspWGxGVLm30z2lXjE6pEhXXzwR8pfy83z3g-nnJ53__-I1xiVzAD8es-VIUQOHvqxAmJwXkrdBg6HRKzbiHRDr8N1cgB4OWUQ6YKHxEthL.jpg)