Channel amplifiers rm440.4, Onyx, Min m in 2 2 m in m in 2 2 – MB QUART Reference MYKRO Amplifiers User Manual
Page 6: Min m in 4 4, 4 channel full range stereo, 2 or 3 channel system
+
1
2
V
+
1
2
V
G
N
D
G
N
D
T
U
R
N
O
N
T
U
R
N
O
N
2
5
A
x
2
M
A
X
2
5
A
x
2
M
A
X
C
H
1
C
H
1
C
H
2
C
H
2
C
H
3
C
H
3
C
H
4
C
H
4
M
IN
M
IN
2
2
M
IN
M
IN
2
2
B
R
ID
G
E
D
B
R
ID
G
E
D
M
IN
M
IN
4
4
M
IN
M
IN
2
2
M
IN
M
IN
2
2
B
R
ID
G
E
D
B
R
ID
G
E
D
M
IN
M
IN
4
4
B
A
S
S
E
Q
B
A
S
S
E
Q
0
0
9
9
d
B
d
B
L
P
/B
P
L
P
/B
P
F
U
L
L
F
U
L
L
H
P
H
P
D
U
P
E
C
H
3
-4
D
U
P
E
C
H
3
-4
F
U
L
L
F
U
L
L
H
P
H
P
2
C
H
2
C
H
4
C
H
4
C
H
IN
P
U
T
M
O
D
E
IN
P
U
T
M
O
D
E
L
E
V
E
L
L
E
V
E
L
6
6
0
.2
0
.2
V
V
L
E
V
E
L
L
E
V
E
L
6
6
0
.2
0
.2
V
V
H
P
F
R
E
Q
H
P
F
R
E
Q
1
0
1
0
1
K
1
K
H
z
H
z
L
P
F
R
E
Q
L
P
F
R
E
Q
5
0
5
0
3
K
3
K
H
z
H
z
C
H
1
C
H
1
C
H
2
C
H
2
C
H
3
C
H
3
C
H
4
C
H
4
4
C
H
4
C
H
M
O
N
O
M
IX
O
U
T
M
O
N
O
M
IX
O
U
T
H
P
F
R
E
Q
H
P
F
R
E
Q
5
0
5
0
3
K
3
K
H
z
H
z
C
H
3
-4
C
H
3
-4
C
H
1
-2
C
H
1
-2
4-Channel Amplifiers
RM440.4
5
FEATURES:
- 2 Sets of RCA inputs
- LEVEL: Variable sensitivity from 0.2V to 6V
- BASS EQ: Adjustable 45Hz bass boost from 0dB to 9dB
- X-OVER: Selects internal crossover functions
- FULL: Bypasses all crossovers for full frequency operation
- LP/BP: Selects the built in variable LOW PASS filter
- HP: Selects the built in variable HIGH PASS filter
- MODE: “2” indicates one set of RCA’s are being used. This will also pass signal to channels 3/4 through 1/2 inputs.
“4” indicates connecting 2 sets of RCA’s to 1/2 and 3/4 inputs.
- LINE OUTPUT: Full range RCA pass through.
4 Channel Full Range Stereo:
Control checklist:
Interconnect cable checklist:
- Refer to the section “Settings for Best Performance”
- Connect the four inputs of the amplifier to a Radio/CD with quality RCA cables.
Switch setting checklist:
Minimum final loudspeaker impedances:
- 1/2CH X-OVER: FULL
- 2 ohm per channel.
- 3/4CH X-OVER: FULL
MODE: “4” since 2 sets of RCA’s are connected.
Important: Do not be tempted to connect the hot, or positive outputs, from any source together
2 or 3 Channel System:
to obtain a mono signal, as this could very well damage the output stage of that source.
- It is necessary to feed the SAME signal to both left and right inputs via a Y-adapter RCA cable.
Here we show how to use the 4 channel amplifiers as a 3 channel unit by taking
- Connect the mono speaker positive terminal to the CH3 +, and its negative terminal to CH4 -
advantage of the mono bridging capability of all MB Quart amplifiers. In order to create
as shown.
a 2 channel system, simply follow the example to also mono bridge channel pair 1/2.
Interconnect cable checklist:
Switch setting checklist:
- Connect the inputs of channel pair 1/2 to a suitable stereo source, e.g. a head unit
- 1/2CH X-OVER: FULL
with good quality RCA cables.
- 3/4CH X-OVER: LP/BP
- A MONO signal source is required to bridge channel pair 3/4, such as would be
Control checklist:
available from the mono sub bass output of an active crossover, whether standalone, or
- Refer to the section “Settings for Best Performance”
built into a head unit or equalizer. If you only have 1 set of RCA outputs from your
Minimum final loudspeaker impedances:
headunit, you can simply connect those to the inputs for ch 1/2 and switch the MODE to
- 2 ohm per channel in stereo mode.
2ch.
- 4 ohm mono bridged.
ONYX
MONO LINE INPUT
(Unless using procedure
listed above for 2ch)