C870
C660
C650
Description
8" Two Way
6
1
⁄
2
" Two Way
6
1
⁄
2
" Two Way
LCR Ceiling Speakers
LCR Ceiling Speakers
LCR Ceiling Speakers
Unit of Measure
Each
Each
Each
Woofer
8" Kevlar Woofer
6
1
⁄
2
" Injection Molded Graphite
6
1
⁄
2
" Polypropylene Woofer
Fixed at a 15˚ Angle
Woofer Fixed at a 15˚ Angle
Fixed at a 15˚ Angle
Surround
Butyl Rubber
Butyl Rubber
Butyl Rubber
Tweeter
1" Aluminum Dome
1" Aluminum Dome
1" Silk Dome
Pivoting Tweeter
Yes
Yes
Yes
Bass Contour Switch
±3dB
No
No
Treble Contour Switch
±3dB
No
No
Voice Coil
1
1
⁄
2
"
1
1
⁄
2
"
1"
Magnet Structure
25 Ounce
17 Ounce
12 Ounce
Power Handling
175 Watts
125 Watts
100 Watts
Frequency Response
32Hz-22kHz
36Hz-22kHz
40Hz-20kHz
Sensitivity
92dB
92dB
91dB
Impedance
8 ohms
8 ohms
8 ohms
Diameter x Depth
11
1
⁄
8
" x 5
7
⁄
8
"
9
1
⁄
4
" x 4
9
⁄
16
"
9
1
⁄
4
" x 4
9
⁄
16
"
Ceiling Cut Out
9
7
⁄
8
"
8
1
⁄
4
"
8
1
⁄
4
"
Warranty
10-Year Limited
10-Year Limited
10-Year Limited
940 Columbia Avenue, Riverside, CA 92507
800.448.0976 • Fax 951.787.8747 • proficientaudio.com
PAS00017 (rev3)
