178.738UK User Manual
Specifications
Power supply
230Vac, 50Hz (IEC)
Fuse
T5AL
Power rms @ 4 Ohms
2 x 150W
Power rms @ 8 Ohms
2 x 100W
Channel inputs
Balanced XLRF or unbalanced 6.3mm jack
Channel controls
Level, Pan, Aux, High, Low, Gain
Music source
Onboard USB audio player
Music control
Stop, Play/Pause, Previous, Next, Repeat
Effects
16 preset program DSP
Auxillary output
Effects send (6.3mm jack), REC out (RCA)
Auxiliary input
Effects return (6.3mm jack), 2TK in (RCA)
EQ master bands
63, 150, 400, 1k, 2.5k, 6.3k, 16kHz (stereo)
Master controls
Aux return, Main L, Main R
Phantom power
Globally swit48V (XLR inputs)
Phones output
Stereo 6.3mm jack (with level control)
Line output
Stereo 6.3mm jack
Speaker outputs
L+R SPK or 6.3mm jack
Dimensions
450 x 270 x 265mm
Weight
9.4kg
Troubleshooting
Power LED is not lit
Check power is switched on at the mains and at the rear panel
Check IEC fuse – if blowing fuses, refer to qualified service personnel
Power LED is on but no other LEDs
and no output
Check input signals and condition of connection leads
Check channel gain and EQ controls are not turned fully down
Check Master and channel level controls are not fully down
Power and level meter LEDs are
lighting but no speaker output
Check output connections to speakers
Check that speakers are in good working order
No playback from USB media
Check that files are standard compressed audio format
Check the volume setting within the audio player
Output is very loud or distorted
Check level of input signal is not too high
Reduce channel level and EQ settings
Ensure Hi-Z line level input(s) not connected via XLR
Check AUX level control and reduce if necessary
Output is working but at very low
level
Check input audio source level is not too low
Ensure low impedance line or mic signal is not connected via jack
Increase channel level control and EQ settings if turned down
Feedback with microphones
Face microphone away from speakers and monitors
Reduce channel level control and/or EQ level(s)
Disposal:
The “Crossed Wheelie Bin” symbol on the product means that the product is classed as Electrical or
Electronic equipment and should not be disposed with other household or commercial waste at the end of its useful life.
The goods must be disposed of according to your local council guidelines.
Errors and omissions excepted.
Copyright © 2015. AVSL Group Ltd.
