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Seven black cube speakers on white wall with mounting brackets

Acoustic Audio

Acoustic Audio AA321B 7-piece on-wall speaker set

SKU CH-CWY0-81590

Seven passive on-wall speakers deliver 150 Hz to 20 kHz at 88 dB from 2.5" woofers with included mounting brackets

  • Product typeOn-Wall Speakers
  • Full-range clarity from 150 Hz to 20 kHz
  • Efficient 88 dB sensitivity drives loud sound with less power
  • Compact 3.5-inch cube fits tight spaces
  • Omni-directional brackets simplify wall mounting
  • Passive design works with any 20–200 W amplifier

Seven-piece on-wall speaker system

The Acoustic Audio AA321B set provides seven passive speakers designed for on-wall mounting in home theatre, whole-house or commercial audio installations. Each unit uses a 2.5" polypropylene woofer in a sealed black ABS cabinet to deliver a frequency response of 150Hz-20 kHz at 88dB sensitivity. The system handles up to 1400 watts total power and requires an external amplifier or receiver with raw speaker wire outputs.

Omni-directional brackets

Included mounting brackets with hardware allow adjustable positioning on walls or ceilings for flexible sound coverage. Spring-loaded raw wire connectors accept bare speaker cable for quick, tool-free termination. An instruction manual guides the wiring process. The passive design means no power outlets are needed at the speaker locations, only speaker wire runs from the amplifier.

Simple wiring with clear power limits

Installation involves mounting brackets, connecting speaker wire to the spring terminals and running cables back to the amplifier. The manufacturer specifies amplifier power between 20 and 200 watts per channel; exceeding this range risks damage. The cabinets are not weather-rated, so outdoor placement is not supported. Buyers needing powered speakers, wireless connectivity or outdoor-rated enclosures should consider other solutions.

How it compares

Measured against everything we stock in Home Speakers & Subwoofers, at today’s prices. Recalculated every night.

Price $99.99
Cheaper than about 62% of the 1,147 comparable items (median $133.99).

Specifications

Product
Brand nameAcoustic Audio by Goldwood
Product typeOn-Wall Speakers

Questions about this item

Will the 2.5" polypropylene woofers need replacement after heavy use?

The sealed ABS cabinets and passive design have no moving parts beyond the drivers, so the woofers should last for years unless physically damaged.

What limits output first when the system runs at high volume for long periods?

The 88 dB sensitivity and 150 Hz low-frequency roll-off mean the amp will hit its 200-watt per channel ceiling before the speakers reach thermal limits.

How much heat or noise do the speakers add when running all day?

Passive speakers generate no fan noise and negligible heat; only the connected amplifier produces warmth during extended sessions.

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