4English

Controls

MONO(Lch)STEREO
OPERATION
A.CH B.CHFILTER
A.CH HPF
FILTER FREQUENCY(Hz)
LPF
OFF
HPF
HPF
OFF
B.M.S.
+12dB
OFF
REMOTE
INPUT SELECTOR
GND
EXT.AMP.CONT.
LINE IN
L
R
L
R
ABSUB
BABA A SUB
200
50
B.CH HPF
200
50
B.CH LPF
200
50
SUB.CH LPF
200
50
MONO(Lch)STEREO
OPERATION
A.CH B.CHFILTER
A.CH HPF
FILTER FREQUENCY(Hz)
LPF
OFF
HPF
HPF
OFF
B.M.S.
+12dB
OFF
REMOTE
INPUT SELECTOR
BABA A SUB
200
50
B.CH HPF
200
50
B.CH LPF
200
50
SUB.CH LPF
200
50
8
0
9
1 4 653 72
The unit is a 5-channel amplifier
incorporating 2 stereo amplifiers and 1
monaural amplifier in a single body.
The stereo amplifier on one side is called
amplifier A, while the one on the other side is
amplifier B. The monaural amplifier is called
the amplifier SUB.
This unit is compatible with a large variety of
systems by combining the switches and
functions described in the following.
About D-class (SUB.CH)
A D-class amplifier uses an inaudible
frequency as a switching pulse to change the
pulse width to represent the music signal.
(Pulse Width Modulation: P.W.M.)

8INPUT SENSITIVITY control

(A.CH/B.CH/SUB.CH)

Adjust this control according to the pre-out
level of the center unit connected to this
amplifier.
The sensitivities of amplifiers A, B and SUB
can be adjusted independently regardless
of the position of the input selector switch.
Refer to "Specifications" on the center
unit’s instruction manual about the pre-out
level.

5OPERATION switch

This switch is used to select the operation
mode of the amplifier.
This setting is valid for both the amplifier A
and B.

•STEREO position:

The amplifier can be used as a stereo
amplifier.

•MONO (Lch) position:

Amplifies the signal input from the left side
only. Set to this position and make bridged
connections to use as a high-power
monaural amplifier. (The input right signal is
not output.)

1FILTER switch (A.CH/B.CH)

This switch allows to apply high-pass or
low-pass filtering to the speaker outputs.

•HPF (High-Pass Filter) position:

The filter outputs the band of higher
frequencies than the frequency set with the
HPF FREQUENCY control.

•OFF position:

The entire bandwidth is output without
filtering.

•LPF (Low-Pass Filter) position: (B.CH

only)

The filter outputs the band of lower
frequencies than the frequency set with the
LPF FREQUENCY control.
The speaker output is automatically turned
monaural (L+R) and the bass boost function
is activated.

2HPF FREQUENCY control

(A.CH/B.CH)
Sets the cutoff frequency when the FILTER
switch is set to HPF.

4B.CH LPF FREQUENCY control

Sets the cutoff frequency when the FILTER
switch is set to LPF.

6SUB.CH LPF FREQUENCY control

This control adjusts the frequency band
output from this amplifier SUB.

7INPUT SELECTER switch

(AB/A)

This switch toggles the input signal of
amplifier B.

•AB position:

The input for terminal A is output from
amplifier A, while the input for terminal B is
output from amplifier B.
NOTE