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Ceiling SpeakerBass and treble boost switches give the C640 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.
The ceiling speaker with extra kick The C640'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 C640's sound, thanks to its low-distortion graphite woofer and aluminum tweeter.
No subwoofer needed here, because the C640 plays down to 32 Hz. That's 9 Hz below the deepest note on an upright bass! The 92 dB sensitivity means the C640 needs only
规格： 6½" 聚丙烯低音单元，1" 丝绸圆顶高音单元
阻抗：8Ω
声压级：92dB 1W/1m
功率：125 Watts
直径 x 深度：9¼" x 3-5/8"
频率响应： 32Hz - 22kHz
开孔尺寸：8¼"
+3db低音、高音控制开关