5.9 master volume control
"Master Volume" potentiometer, control the master volume of power amp total level.
The master volume is recommended not to open the greatest potential to retain 20% of the spare values.
"BASS" potentiometer, adjust the low frequency 65Hz~550Hz of power amp.
"TREBLE" Treble potentiometer, adjust the high frequency 5KHz~10KHz of power amp.
"BALANCED" is adjusting the balance of the main amplifier. When "BALANCED" set in middle, L&R
channel has an output; when "BALANCED" set in R, R channel has an output, shut down the L-channel
output; when "BALANCED" set in L, L channel has an output, shut down the R-channel output.
5.10 output level indicator
Green signal indicator, the lights (from left to right, from 1 to 8 green LED) indicates that the channel's
output level, brightness will change with the changable of output level amplitude size. Lights on the circuit
is connected in parallel at the output of the amplifier, so that when the panel master volume potentiometer
rotates to the minimum position, regardless of whether there is an input signal, lights will not illuminate.
Orange peak indicator lights, when this is highlighted, indicate the output signal of the amplifier channel
has reached the peak (rated power).
Red indicator light of peak clipping. The range of the amplifier output signal of the channel is more than
the summit when the light turns on, peak clipping is appeared . If it happens, please turn down the signal
output or diminish output gain.
Red indicator light of overheating protection, the channel of this amplifier is turn off to protect the
equipment as the overheating. In this case, the "Port" light is lit. please close the amplifier, check whether
it is in a good ventilation, if the wind can go smoothly through wind grid .If the load impedance is too small.
The red indicator light of protection, The machine in the protection state when this indicator turn on, It is
convenient to find out the problem. Indicator light is lit about 3 s ~ 5 s continuously when startup amplifier
self-check process. During this period the amplifier is no output. This phenomenon is normal. Indicator
protection function: overheating protection, overload protection, short circuit protection. If not belong to
these after checking but with bright "PORT" light. There is something wrong with the amplifier, please
send the amplifier to a professionals to repair.
USER MANUAL
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