CLB Active Subwoofer User Manual
Specifications
Model
CLB12A
CLB15A
Power supply
230Vac, 50Hz (IEC)
Pole Mount
35mm cast metal socket
Input connection
Balanced or unbalanced line L+R combo connectors (6.3mm jack/XLRF )
Output connection
Balanced or unbalanced line L+R XLRM connectors (parallel to input)
Driver
300mm (12”) reinforced paper cone
380mm (15”) reinforced paper cone
Impedance
4Ω
Driver: Coil size
76mm (3“)
76mm (3“)
Driver: Basket
Die-cast aluminium frame
Die-cast aluminium frame
Output power: RMS
400W
500W
Frequency response (-3dB)
40Hz - 180Hz
35Hz - 180Hz
Crossover frequency
40Hz - 150Hz
40Hz - 150Hz
Sensitivity (1m, 1W)
100dB
105dB
Maximum SPL
120dB
129dB
THD
<1%
<1%
Dimensions
445 x 525 x 575mm
510 x 595 x 655mm
Weight
24kg
28kg
Troubleshooting
No power light on rear panel switch
Ensure IEC inlet is connected to mains and mains lead is in good condition
Ensure mains outlet is switched on
Check mains fuse. If repeatedly blowing, refer to qualified service
personnel
Power light is on but no other LEDs and no output
Check input signal and connection leads
Ensure input level and frequency controls are not turned fully down
Humming noise without any signal present
Test the GND/LIFT switch and check if the noise is from mains earth
Check integrity of signal leads and ensure they are well screened
Output very distorted and/or power LED is
frequently red
Turn down the input level rotary or output level from the audio source
Adjust the cutoff to a lower frequency
Output is working but at very low level
Ensure input source is at line level
Test the phase switch and check if one setting is louder than the other
Increase input level control or output level from audio source
Adjust the cutoff frequency upward to allow some more mid-range into the
signal
Errors and omissions excepted.
Copyright© 2013. AVSL Group Ltd.
