18
Remote Bass Port - Terminal
Allows to control Bass Boost for CH3/4 via Remote Conrol
from any location, e.g. from driver's seat. Please connect the
included bass remote here. Attend on this "Bass Control".
Amplifier Input Section
Allows to connect the amplifier with the head unit via RCA cable.
Preamp Output Section (Line Output)
Provides a full range lineout signal via RCA to use additional amplifiers.
Filter High-/Low-Pass - Switches & Controls CH1/2 & CH3/4 channel-pair separated
Position HP
- Highpass ist activated, the frequency of the speakers is bounded below.
The threshold is from 15Hz to 400Hz adjustable.
Position OFF
- full range output signal
Position LP
- Lowpass ist activated, the frequency of the speakers is bounded above.
The threshold is from 40Hz to 200Hz adjustable.
Position OFF
- full range output signal
Bass-EQ - Control CH1/2 & CH3/4
Allows to adjust channel-pair separated
the bass boost from 0 - 18dB.
Attend on this "Bass Control"
Gain - Control
CH1/2 & CH3/4
Allows to adjust
channel-pair sepa-
rated input level from
head unit
Input Sensitivity
CH1/2 & CH3/4
Allows to switch
channel-pair sepa-
rated Input sensitivity to
0.2 Volt- 4 Volt or
0.4 Volt- 8 Volt
Protection - LED
Indicates the fault operation of the amplifier. When the fault
conditions (overload, excessive heat or short circuit of
speaker) arise, the protection curcuit is engaged to protect
both the speakers and the amplifier against damage.
Attend in this case TROUBLE SHOOTING on page 23.
Power - LED
Indicates the amplifier is in
operation-mode.
4-Channel Amplifiers - Functions & Controls
QE 900.4
Bass Control
Inner
- activates
internal Bass-EQ Control
External
- allows to adjust
Bass-EQ via Remote
Control for CH3/4
