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Ten black rectangular outdoor speakers with silver woofers and mounting brackets

Acoustic Audio

Acoustic Audio 251B 10 speakers 2000 W indoor outdoor black

SKU CH-ZFDW-3X2HX

Ten weatherproof indoor/outdoor speakers deliver 37 Hz–20 kHz frequency response with 99 dB sensitivity for whole-house or patio sound

  • Product typeIndoor/Outdoor Speakers
  • 10 passive speakers ready for multi-room sound
  • Weatherproof cabinets survive rain snow sun and ice
  • 3-way drivers deliver 37 Hz to 20 kHz full range
  • 99 dB sensitivity works with 20 to 300 watt amps
  • Included U brackets make wall or ceiling mounting simple

Ten-speaker indoor/outdoor set

This Acoustic Audio 251B package supplies ten passive speakers designed for both indoor and outdoor installations. Each unit uses a three-way driver array with a 4" poly woofer, 2" mylar midrange and 0.5" mylar tweeter. The system targets whole-house audio, home-theatre surround or commercial background music. Buyers who need powered speakers or wireless streaming will need a different product type.

Passive design with amplifier limits

The speakers require an external amplifier or receiver with raw speaker-wire outputs. The manufacturer states the connected amp must deliver no less than 20 watts and no more than 300 watts per channel. Frequency response is rated 37 Hz to 20 kHz at 99 dB sensitivity and 8 ohm impedance. Installations that demand higher power handling or lower impedance loads fall outside the specified range.

Weatherproof cabinets and U-brackets

Black ABS sealed enclosures are built to withstand rain, snow, sun and ice for permanent outdoor mounting. Each speaker measures 7.375" x 4.625" x 4.125" and includes a U-bracket with hardware for wall or ceiling attachment. Spring-loaded raw-wire terminals accept stripped speaker cable without tools. The compact sealed boxes limit deep-bass extension compared with larger ported designs.

How it compares

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

Price $171.99
Pricier than about 58% of the 1,147 comparable items (median $133.99).

Specifications

Product
Brand nameAcoustic Audio by Goldwood
Product typeIndoor/Outdoor Speakers

Questions about this item

One 10-speaker set or multiple packs — which fits my space?

The package contains ten passive speakers — five matched pairs — so one box delivers a complete 5.1 or 7.1 surround layout plus extra zones for patio or whole-house audio.

What does the 2000 W rating mean when I hook these to my receiver?

2000 W is the total peak power handling for all ten speakers combined; each unit is rated for 20–300 W per channel, so any amp delivering 20–300 W per channel will drive them cleanly.

My amp has bare-wire outputs — will the spring-loaded terminals accept the connection?

Yes — each cabinet has spring-loaded raw-wire connectors that clamp bare speaker wire or CL3-rated cable directly, no plugs or tools required.

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