MarkAudio Alpair CHBW-70 Black Full Range Woofer (5inch/8ohm)
Product Description:
The CHBW-70 is a special driver designed for best low to mid-range performance. Male and female singing voices sound very natural on the CHBW. For lower load operations, bass response in the properly designed box can be tuned into the low 40ʼs Hertz. It has a warm easy listening sound, very natural and pleasing to the ear. This driver can easily fit into Bass-Relfex and Vented box sizes from 4.4 litres to 11 litres internal volume. The CHBW is easy to partner with tweeters to make a 2 way system, suitable for many audio uses.
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Features:Â
140mm Widerange drive unit
8ohm   single ferrite magnet
- Variation on Alpair 12P optimised as widerange midbass
- 7in natural blue uncoated reinforced paper cone
- Operating range to 10KHz
- Very low-profile multiform cone for broad directivity pattern
- Advanced low-distortion motor design
- Long-stroke hybrid mono-suspension with arrestor and progressive-rate spider
- Self-damping reinforced polymer basket
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Specifications:
Article number | CHBW-70 |
Woofer Series | CH Series |
Woofer Type | Full-range |
Nominal Diameter | 5″ |
Power Handling (RMS) | 20w Nom. |
Impedance (Z) | 8 ohms |
Sensitivity (SPL at 1m / 2.83V) | 84.8 dB |
CHBW-70 | Gen. 2 Data |
REVC | 7.2 Ohm |
Fo | 66.4 Hz |
Sd | 5.02 K mm/2 |
Cms | 1.26 uM/N |
Mmd | 4.30 g |
Mms | 4.50 g |
BL | 4.43 T*M |
Qms | 1.78 |
Qes | 0.69 |
Qts | 0.49 |
Levc | 44.53 uH |
No | 0.19% |
Spl | 84.80 dB |
Pwr | 20w Nom. |
X max | 4.2-mm 1 way |
Coil Dia | 20-mm |
Main tolerance | +/- 2hz on mean Fo |
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