Functions & Controls - Crunch GTR420.2 Owner's Manual

2 Channel Amplifier - Functions & Controls
X-OVER - Switch
Select the desired Operation-Mode.
Position HP - High pass filter ist activated and the
frequency range is cut-off below.
Position FULL - Full range output signal
Position LP/BP - Low pass filter ist activated and the
frequency range is cut-off above.
PROTECT
POWER
POWER - LED
Indicates the
amplifier is in
operation-mode.
PROTECT - 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 the speakers and the amplifier against damage.
Attend in this case TROUBLE SHOOTING on page 22.
GTR420.2 – GTR620.2
HIGH-/LOWPASS - Control
HIGH PASS - The built-in high pass filter is fully variable from
10Hz to 1200Hz and cut-off the lower frequencies.
By choosing the LP/BP mode on the X-OVER switch, the
BANDPASS-Mode is activated. By adjusting the HIGH PASS
Contoller, the Subsonic-Frequency (Lower Frequency Cut-Off)
is adjustable.
LOW PASS - The built-in low pass filter is fully variable from
30Hz to 150Hz and cut-off the higher frequencies.
BASS REMOTE
LEVEL I NPUT BASS B OOST
X-OVER
LP/BP
FULL
4V 0.2V 0dB 12dB
HP
LEVEL INPUT - Control
Adjusts line level (RCA) inputs
from 0.2 to 4 Volts
BASS REMOTE - Terminal
Terminal jack for the supplied BASS
REMOTE. With this remote you are able to
adjust the Bass Level for example from the
driver's seat.
15
BASS BOOST - Control
Allows you to adjust the bass boost
from 0dB up to 12dB at 45 Hz.
OUTPUT INPUT
LOW P ASS HIGH P ASS
BPF
L
30Hz 150Hz 10Hz 1.2kHz
R
INPUT - RCA
Allows to connect the amplifier with the head
unit via RCA cable.
OUTPUT- RCA
Provides a full range line level (RCA) output
that allows the use of additional amplifiers
L
R