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White rectangular in-wall speaker with visible woofer and tweeter behind grille

KLH

KLH F-6600-W In-Wall Speaker White

SKU CH-ZXQ2-HV3F9

A two-way in-wall speaker with a 6.5" graphite woofer, 1" soft-dome tweeter and 3.9" mounting depth for indoor or outdoor use

  • ColorWhite
  • TypeIndoor/Outdoor Speakers
  • Clear highs from 1" soft-dome tweeter
  • Deep bass via 6.5" graphite woofer
  • Fits standard walls with 3.9" mounting depth
  • Easy install using six dog-leg mounting points
  • High 91dB sensitivity works with modest amplifiers

In-wall speaker for whole-house audio

The KLH F-6600-W is a two-way in-wall speaker designed for indoor and outdoor installations. It uses a 6.5 inch injected molded graphite woofer with a butyl rubber surround and a 1 inch proprietary polypropylene and mylar soft dome tweeter. A multi-element crossover network blends the drivers for clear sound reproduction across music and movie content. The white finish suits discreet integration into walls or ceilings.

8 ohm nominal impedance

This speaker presents an 8 ohm nominal load compatible with most home amplifiers and multi-zone receivers. The recommended amplifier power range is 25W to 150W continuous with 200W peak capability. Sensitivity measures 91dB at 2.83V measured at one meter, ensuring efficient output from modest power sources. Frequency response spans 65Hz to 20KHz within a +/-3dB window.

Spring-loaded binding posts and dog-leg mounting

Spring-loaded binding posts accept bare wire or pin connectors for quick, secure termination. Six dog-leg installation points clamp the baffle to drywall or studs without a separate bracket. Mounting depth required is 3.9 inches with a cutout of 7.4 by 11.3 inches. The unit weighs 1.8 kg and is sold individually; a rough-in kit WK-6600 is available for new-construction planning.

Highlights

  • Clear highs from 1" soft-dome tweeter
  • Deep bass via 6.5" graphite woofer
  • Fits standard walls with 3.9" mounting depth
  • Easy install using six dog-leg mounting points
  • High 91dB sensitivity works with modest amplifiers

Specifications

ColorWhite
TypeIndoor/Outdoor Speakers

Questions about this item

How low does the 65 Hz bass response reach in a real room?

The speaker plays down to 65 Hz at minus 3 dB, so you will hear solid mid-bass but not deep sub-bass without a separate subwoofer.

What amplifier power does the 8-ohm nominal impedance actually require?

The 8-ohm load is easy for most amps; the maker recommends 25 W to 150 W continuous and the speaker handles 200 W peaks.

Will the 3.9-inch mounting depth fit behind my drywall?

You need at least 3.9 inches (99 mm) of clear cavity depth behind the 7.4 by 11.3 inch cutout for the dog-leg clamps to secure the frame.

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