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Five small black cube speakers with mounting brackets

Acoustic Audio

Acoustic Audio AA321B 5-piece on-wall speaker set

SKU CH-W07X-F15QJ

Five passive on-wall speakers with 2.5" woofers, 150 Hz–20 kHz response and 88 dB sensitivity, plus mounting hardware

  • TypeOn-Wall Speakers
  • Full-range clarity from 2.5" polypropylene woofers
  • Wide 150 Hz to 20 kHz frequency response
  • Efficient 88 dB sensitivity at 8 ohms
  • Compact 3.5" x 3.5" x 4.5" cabinets fit any room
  • Omni-directional brackets with hardware simplify installation

Compact five-piece speaker set

The Acoustic Audio AA321B delivers a 1000 watt passive system for surround sound or whole-house audio. Five 2.5 inch polypropylene woofers cover 150Hz to 20kHz at 88dB sensitivity. Each sealed ABS cabinet measures 3.5 by 3.5 by 4.5 inches and uses spring-loaded raw wire terminals.

Steady output within amplifier limits

Continuous performance stays clean when the amplifier supplies between 20 and 200 watts per channel. The 8 ohm nominal impedance presents an easy load for most receivers. Frequency response remains consistent across the rated band without the compression that smaller satellites often show at higher volumes.

Simple bracket mounting with basic wiring

Omni-directional brackets and hardware allow wall placement in minutes using common tools. Spring terminals accept stripped speaker wire without special connectors. The system requires an external amplifier or receiver with raw speaker outputs and is not rated for outdoor installation.

Highlights

  • Full-range clarity from 2.5" polypropylene woofers
  • Wide 150 Hz to 20 kHz frequency response
  • Efficient 88 dB sensitivity at 8 ohms
  • Compact 3.5" x 3.5" x 4.5" cabinets fit any room
  • Omni-directional brackets with hardware simplify installation

Specifications

BrandAcoustic Audio by Goldwood
TypeOn-Wall Speakers

Questions about this item

How much heat or noise do the 2.5″ polypropylene woofers generate when the AA321B set runs all day?

Passive speakers have no internal amplification, so they produce no electrical noise or heat of their own; any warmth comes from the connected amplifier, not the 5-piece set.

What amplifier power range must I already own to drive the AA321B speakers properly?

An amplifier or receiver delivering 20 to 200 watts per channel into 8 ohms with raw speaker-wire outputs is required.

Will the AA321B set integrate with my older receiver that only has spring-clip terminals?

Yes — each speaker uses spring-loaded raw-wire connectors, so they accept bare wire from legacy spring-clip or binding-post amplifiers without adapters.

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