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Eighteen small black box speakers with mounting brackets

Acoustic Audio

Acoustic Audio AA321B 18 Speaker Set Black 3600 Watts

SKU CH-WMQY-VNBH7

Eighteen mountable passive speakers deliver full-range sound from compact 3.5-inch cabinets with 2.5-inch woofers

  • TypeOn-Wall Speakers
  • 18 speakers cover every room with full-range sound
  • 3600 W total power handles demanding home-theatre setups
  • 5" polypropylene woofers deliver clear 150 Hz-20 kHz response
  • 88 dB sensitivity works efficiently with 20-200 W amplifiers
  • Omni-directional brackets make on-wall installation quick and secure

Complete 18-speaker set for whole-house audio

The Acoustic Audio AA321B delivers eighteen passive on-wall speakers in a single pack, each with a 2.5-inch polypropylene woofer in a sealed black ABS cabinet. Frequency response spans 150 Hz to 20 kHz at 88 dB sensitivity and 8-ohm impedance. Spring-loaded raw-wire terminals accept standard speaker cable for quick connection.

Replaces piecemeal surround

Instead of sourcing multiple smaller packs, this nine-pair bundle covers a full 7.1 home-theatre layout plus additional zones for whole-house or commercial background music. The jump is worth it when you need consistent timbre across many rooms and want a single mounting system for every location. Not suited for buyers who require weather-resistant outdoor speakers or powered models with built-in amplification.

Simple bracket mounting with basic wiring

Each speaker ships with an omni-directional bracket and hardware so you can aim the driver toward the listening area. Installation only requires running CL3 or raw speaker wire from an amplifier supplying 20 to 200 watts per channel and securing the brackets to studs or solid wall anchors. The main pitfall is under-powering the array or skipping the manual’s polarity guidance, which can reduce output and imaging.

Highlights

  • 18 speakers cover every room with full-range sound
  • 3600 W total power handles demanding home-theatre setups
  • 5" polypropylene woofers deliver clear 150 Hz-20 kHz response
  • 88 dB sensitivity works efficiently with 20-200 W amplifiers
  • Omni-directional brackets make on-wall installation quick and secure

Specifications

BrandAcoustic Audio by Goldwood
TypeOn-Wall Speakers

Questions about this item

What mounting hardware and brackets are included for the 18 speakers?

The package supplies 18 omni-directional mounting brackets with all necessary hardware for on-wall installation.

How do I connect the speakers to my amplifier and what wire gauge is required?

Use raw speaker wire or CL3 cable from your amp's speaker outputs to each spring-loaded connector; the amp must deliver 20 to 200 watts per channel at 8 ohms.

Are the 2.5" polypropylene woofers user-replaceable if they fail?

The woofers are built into sealed cabinets and are not designed for user replacement; the set carries a lifetime warranty against manufacturer defects.

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