User manual

QTA-1120P/1240P
User Manual
User Manual Q-Tech Commercial Series
QTA-1120P/1240P
6
Trouble Shooting
If the amplifier fails to work as required,
please check the following:
No Power, No Lights
Make sure amplifier power switch is on. •
Make sure mains power switch is on at •
the wall.
Check the mains and DC fuse. •
Replace with only the correct type and •
rating.
Distorted Output
Check that the speaker type is correct for •
the output that you are using (ie. 4-16Ω, or
100V line).
Check for any short circuits on the speaker •
line.
Very Low Output Volume
Make sure that the speaker line is not •
shorted.
Check speaker types and ratings.•
Check that the parallel/mono switch is •
correctly set.
Continually Blows Fuses
Make sure that the speaker line is not •
shorted.
Check speaker types, ratings and if on •
correct output.
Amplifier Keeps on Cutting In & Out
Make sure that there is adequate •
ventilation around the amplifier.
Check the vent slots on the front are not •
covered or blocked and the fan on the rear
is functioning correctly.
Check also speaker types, ratings and for •
any short circuits on the speaker line.
Specifications
Type Booster Amplifier
Model QTA-1120P QTA-1240P
Output Power (RMS): 120W 240W
Power
Supply
Mains
Voltage
AC 115V or 230V
50/60Hz
Battery
Voltage
DC 24V
Total Harmonic Distortion
<= 1% @ 1KHz,
rated power
Sensitivity 1V, 100mV @ 10K ohm
Outputs
8
Ω, 70V, 100V
Signal to Noise Ratio4 86 dB
Indicator Power On, Level
AC Power Consumption 320W 640W
DC Power Consumption 8A 15A
Dimensions (mm) 88(H) x 425(W) x 305(D)
Weight 8.2 Kgs 10.6Kgs
Mounting options Desktop or 19” rack