WONDOM AA-AB35511 3-Channel Class D Amplifier Board

The WONDOM AA-AB35511 is a three-channel Class D amplifier board for DIY audio builds and cabinet integration. Its listing claims 500 watts per channel at a 3-ohm load and 50V DC with THD+N at 10%, but specifies a lower 312 watts under a 1% THD+N condition. Buyers should distinguish those test conditions and plan for a suitable DC supply and speaker loads.

At a glance

Three-channel Class D board intended for DIY audio projects and integration into a cabinet.
The listed maximum output is conditional: 500W at 3 ohms and 50V DC with 10% THD+N, versus 312W under the listed 1% THD+N condition.
RCA and line inputs, plus pre-mounted terminal interfaces, are described for connecting audio and speaker wiring.
A temperature-controlled fan, heatsink and overcurrent and overtemperature protection are claimed.

Price

$30.25Save 50%

Reference price: ~~$60.50~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

Three channels in a compact board format can suit a multichannel build, including the listed 2.1-system use case.
Four screw holes and pre-mounted terminal interfaces are described to simplify cabinet installation and wiring.
The product description specifies a lower power figure at a 1% THD+N condition, helping distinguish it from the higher 10% THD+N claim.

Cons

A suitable DC power supply is required, and none is listed as included.
The advertised 500W figure is tied to a 3-ohm load, 50V DC and 10% THD+N. It should not be treated as the stated output at the 1% THD+N condition.

Technical specifications

15 specifications

Identity
Brand	WONDOM
Model	AA-AB35511
Channels	3
Amplifier topology	Class D

Output and electrical
Output power	500 watts
Output power at 3-ohm load, 50V DC, THD+N 10%	500W@3Ohm 50V DC THD+N 10%
Output power at 3-ohm load, 50V DC, THD+N 1%	312W@3Ohm 50V DC THD+N 1%
Required supply range stated in product description	DC24V – 50V

Dimensions and installation
Mounting type listed	Surface Mount
Dimensions	6 x 4.5 x 1.48 inches
Weight	757g/1.69 lbs (±10%)
Installation features	4-screw Easy Installation

Features
Indicators and cooling	Power Indicator, Temperature Control Fan
Protection	Overcurrent Protection,Overtemperature Protection
Audio input connections stated	RCA jack and line input

What to know before buying

Listing details to confirm

The listing gives different weight values, 757g/1.69 lbs (±10%) and 767g/1.69 lbs (±10%), and describes the indicator inconsistently as a power indicator or clip indicator. Its claimed 500W-per-channel output also has specific load, supply and distortion conditions, with 312W stated at 1% THD+N. Confirm which revision and details apply to the selected listing. The product description calls for a DC24V – 50V supply.

Who is it for?

A good fit for

DIY audio builders seeking a three-channel board for a 2.1 setup, soundbar, home theater or custom cabinet.
Buyers comfortable sourcing a compatible DC supply and checking speaker load and power requirements against the stated output conditions.

Less suited to

People seeking a ready-to-use amplifier with an included power supply or finished enclosure.
Buyers who require a guaranteed 500W output at 1% THD+N, since the listed 1% figure is 312W under the stated test conditions.

WONDOM AA-AB35511 3-Channel Class D Amplifier Board · photo 2 — Additional product photo 2

Customer reviews on Amazon

5 / 5 · 1 ratings

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The supplied rating evidence is a single five-star rating, which is too limited to establish broader customer satisfaction or identify particular strengths and concerns. It provides no explanation of how the board performs in a build, so buyers should base fit on the stated three-channel format, power conditions and installation requirements.

Frequently asked questions

Does the board provide 500W per channel at all distortion levels?

No. The listing specifies 500W at a 3-ohm load and 50V DC with THD+N at 10%, and 312W with THD+N at 1% under the same stated load and supply conditions.

What power supply does it need?

The product description says a DC24V – 50V power supply is required. It does not list a supply as included, so buyers need to source one separately.

What connections and installation features are stated?

The listing describes RCA and line inputs, pre-mounted terminal interfaces, and four screw holes for installation.

Is this a complete amplifier system?

It is listed as an amplifier board. The description discusses integrating it into a cabinet and does not identify a power supply or enclosure as included.