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Two white rectangular in-wall speakers with black driver cones visible

KLH

KLH M-8600-W In-Wall Speaker Pair

SKU CH-SWP9-607WX

A pair of in-wall speakers with dual 6.5-inch Kevlar woofers, 1-inch silk dome tweeters, 45Hz-20KHz response and 91dB sensitivity

  • Product typeIndoor/Outdoor Speakers
  • Dual 6.5″ Kevlar/fiberglass woofers deliver deep bass
  • 1″ silk dome tweeter produces clear high frequencies
  • 45 Hz–20 kHz response covers full audio range
  • 91 dB sensitivity works with 50–275 W amplifiers
  • Flush-mount 11.3″ × 19.7″ design integrates cleanly into walls

Pair of in-wall speakers for architectural audio

This bundle supplies two KLH M-8600-W speakers designed for flush mounting in walls or ceilings. Each unit uses dual 6.5-inch fiberglass and Kevlar laminate woofers with a 1-inch silk dome tweeter inside a sealed MDF enclosure. The steel-reinforced frame and six dog-leg mounting points secure the speakers in standard stud cavities. They suit whole-house music or home-theatre installations where visible cabinets are unwanted.

Sealed enclosure and mounting hardware shape

The factory-sealed, tuned MDF cabinet removes the need for separate back-boxes and keeps bass response consistent behind drywall. Six dog-leg clamps grip the framing without extra brackets, speeding up a professional finish. A paintable white grille lets the speakers disappear into the ceiling or wall surface. The bundle simply doubles the hardware for stereo or multi-room coverage.

8-ohm load and 45 Hz low end define amplifier

At 8 ohms nominal and 91 dB sensitivity the pair works with amplifiers rated from 50 to 275 watts per channel. The specified frequency response reaches 45 Hz, so deep sub-bass below that point will not be reproduced without a separate subwoofer. Outdoor-rated construction handles humidity but the speakers are not submersible and require protected wiring runs.

How it compares

Measured against everything we stock in Soundbar Speaker Systems, at today’s prices. Recalculated every night.

Price $404.99
Typical for this category: the median of 339 items is $419.99.

Specifications

Product
Product typeIndoor/Outdoor Speakers

Questions about this item

Do the 6.5-inch Kevlar/fiberglass woofers or the 1-inch silk dome tweeter need periodic replacement?

The sealed MDF enclosure protects the drivers; no scheduled replacement is required for the woofers or tweeter under normal indoor or outdoor use.

What limits continuous output first — the 8-ohm impedance or the 275 W amplifier ceiling?

The 275 W maximum amplifier rating is the practical ceiling; the 8-ohm load is easily driven by compatible amps rated from 50 W to 275 W.

How much heat or noise do the speakers add when running all day at 91 dB sensitivity?

Passive speakers generate no fan noise and negligible heat; the enclosure stays near room temperature even during extended high-volume playback.

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