The ceiling speaker with extra kick.
The C641’s grille conceals tone switches that let you boost the bass and/or treble by 3 decibels. With the flick of a switch, you can kick up the lows or highs to suit your taste. No matter how you set the switches, you’ll love the C641’s sound, thanks to its low-distortion graphite woofer and aluminum tweeter.

No subwoofer needed here, because the C641 plays down to 32 Hz. That’s 9 Hz below the deepest note on an upright bass! The 92 dB sensitivity means the C641 needs only about one-third as much power as a typical speaker, so you can get satisfying sound even with very low-powered amplifiers. A sturdy dogleg mounting system makes it easy to install. Includes Thin-Bezel Grilles held by Neo Magnets.

Bass and treble boost switches give the C641 an extra kick in the lows or highs—or both! A stiff graphite-cone woofer plays deep bass notes with very low distortion, and it delivers a super-smooth midrange, too. A top-quality aluminum-dome tweeter produces clear, extended treble response.

Main Features

• Replaces C640 Ceiling Speakers
• Power Handling: 125 Watts
• Frequency Response: 32Hz - 22kHz
• Impedance: 8Ω
• Sensitivity: 92dB 1W/1m
• Includes Thin-Bezel Grilles held by Neo Magnets
• Diameter x Depth: 91/4" x 35/8"
• Ceiling Cut Out: 81/4"