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The W667 may be their least-expensive in-wall speaker. It still delivers the sound quality you expect from Proficient Audio.
  • High-quality
  • Woofer
  • Tweeter
  • Mounting Depth
Brand: Proficient
Model: W667
  • Its high-quality 6½-inch polypropylene-cone woofer pumps out the deep notes all the way down to 45 Hz, with low distortion and a clean midrange.
  • The ¾-inch soft-dome tweeter has a smooth sound you wouldn't expect in this price range.
  • With a sensitivity of 90 dB, the W667 needs only about half as much power as a typical speaker.
  • That's especially important in budget multiroom installations, which sometimes use very low-powered amplifiers.
  •  The W667 uses the same cutting template as our other 6½-inch in-wall speakers,
  • You can easily mix'n'match Proficient models without worrying about cutting the wrong-size hole.
  • Includes Thin-Bezel Grilles held by Neo Magnets. 


6.5 inch Polypropylene Cone
0.75 inch Soft Dome
Nominal Impedence
8 Ohms
Sensitivity [email protected]
Frequency Range
45Hz - 20kHz
Power Handling
75 Watts
Cutout (H x W)
276 x 170mm
Mounting Depth
External Dimensions (H x W)
311 x 208mm