We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Five round white in-ceiling speakers with black cones and silver domes, flush grilles, shallow ABS housings

Acoustic Audio

Acoustic Audio CS-IC83 8" In-Ceiling 5-Speaker Home Theater Set

SKU CH-9WKK-TBNH5

A five-speaker in-ceiling set with 8" three-way drivers, 40 Hz–20 kHz response and 95 dB sensitivity, mounting flush in 9.45" cut-outs with a tool-free pressure-lock system

  • TypeIn-Ceiling Speakers
  • 8" poly woofers deliver deep 40 Hz bass
  • 13 mm soft-dome tweeters extend clarity to 20 kHz
  • 95 dB sensitivity works with 10–350 W amplifiers
  • Pressure Lock clamps secure speakers without extra hardware
  • Paintable grilles blend invisibly into any ceiling décor

8-inch In-Ceiling 5-Speaker Home Theater Set

The Acoustic Audio CS-IC83 is a five-piece in-ceiling speaker system designed for flush-mount home theater installations. Each unit uses a three-way passive design with an 8-inch poly cone woofer, poly mica midrange and 13mm soft dome tweeter. The set covers front, centre and surround channels for a complete surround sound layout. Spring-loaded raw wire terminals accept standard speaker cable from any compatible amplifier.

Sustained Output and Frequency Response

The speakers handle continuous amplifier power between 10 and 350 watts per channel at an 8-ohm nominal impedance. Sensitivity is rated at 95 dB, providing high output levels without demanding excessive power. Frequency response extends from 40 Hz to 20 kHz, covering the full audible range with consistent dispersion. The passive crossover network separates low, mid and high frequencies to maintain clarity during extended listening sessions.

Installation Constraints and Compatibility

Each speaker requires a round cut-out of 9.45 inches and a mounting depth of 3.78 inches behind the ceiling surface. The overall diameter measures 10.83 inches, so joist spacing must accommodate this footprint. The Pressure Lock mounting system clamps directly to drywall without separate hardware. A receiver or amplifier with raw speaker wire outputs is the only system requirement; no proprietary connectors or active electronics are involved.

Highlights

  • 8" poly woofers deliver deep 40 Hz bass
  • 13 mm soft-dome tweeters extend clarity to 20 kHz
  • 95 dB sensitivity works with 10–350 W amplifiers
  • Pressure Lock clamps secure speakers without extra hardware
  • Paintable grilles blend invisibly into any ceiling décor

Specifications

BrandAcoustic Audio by Goldwood
TypeIn-Ceiling Speakers

Questions about this item

How much heat or noise does the CS-IC83 set add when running all day?

The passive in-ceiling speakers have no fans or amplifiers, so they produce no audible noise or measurable heat during extended use.

What must I already own to drive these five speakers?

You need a home audio receiver or amplifier with raw speaker-wire outputs capable of 10 to 350 watts per channel at 8 ohms.

Will the CS-IC83 speakers work with my older 8-ohm receiver?

Yes, the 8-ohm impedance and 95 dB sensitivity match legacy amplifiers, and the spring-loaded terminals accept standard bare wire.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.