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Four small black cube speakers with mounting brackets

Acoustic Audio

Acoustic Audio AA321B 800 W 4-speaker on-wall set

SKU CH-DH3Y-8VSD5

Four passive on-wall speakers deliver 800 W total power with 2.5" woofers and 150 Hz–20 kHz response

  • TypeOn-Wall Speakers
  • Compact 3.5" cubes fit any room
  • 800 W total system power handles dynamic peaks
  • 5" polypropylene woofers cover 150 Hz to 20 kHz
  • 88 dB sensitivity works with 20–200 W amps
  • Omni-directional brackets make wall mounting simple

Compact 4-speaker on-wall set

The Acoustic Audio AA321B is a set of four passive on-wall speakers rated at 800 watts total system power. Each cabinet measures 3.5" x 3.5" x 4.5" and houses a 2.5" polypropylene woofer. The sealed black ABS enclosures use spring-loaded raw wire connectors and include omni-directional mounting brackets with hardware. Frequency response is 150Hz-20 kHz at 88dB sensitivity and 8 ohms impedance.

Home theatre or whole-house audio

This set suits buyers building a surround sound system or a distributed audio installation who have an amplifier or receiver with raw speaker wire outputs. The amp must supply between 20 and 200 watts per channel. Buyers who need powered speakers, wireless connectivity, outdoor-rated enclosures, or a different cabinet finish should look at other models.

Simple bracket mounting with wired connection

Installation uses the supplied omni-directional brackets and hardware; speakers mount directly to the wall and connect via raw speaker wire or CL3 cable. The spring-loaded terminals accept stripped wire ends without tools. The main issues are ensuring the amplifier stays within the 20 to 200 watts per channel window and verifying the speakers are not exposed to outdoor conditions, which they are not rated for.

Highlights

  • Compact 3.5" cubes fit any room
  • 800 W total system power handles dynamic peaks
  • 5" polypropylene woofers cover 150 Hz to 20 kHz
  • 88 dB sensitivity works with 20–200 W amps
  • Omni-directional brackets make wall mounting simple

Specifications

BrandAcoustic Audio by Goldwood
TypeOn-Wall Speakers

Questions about this item

What amplifier power range is required to drive these 800 W speakers?

Each channel must supply between 20 and 200 watts into an 8-ohm load to match the speakers' rated limits.

Will the spring-loaded raw-wire terminals accept the CL3 cable I already have?

Yes, the terminals are designed for bare-wire connection, so standard CL3 or raw speaker wire inserts directly without adapters.

How can I confirm the set is performing to its 88 dB sensitivity spec after mounting?

Play a familiar 150 Hz – 20 kHz test tone at a moderate volume; clear, balanced output from all four cabinets indicates the drivers are operating within specification.

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