12
2. Two full-range speakers and a subwoofer
connected in mono bridge mode.
Subwoofer Front (or rear) speakers
Filter settings front channels, CH1 + CH2
Speaker connections to RM40
1. Four full-range speakers. One front and
one rear pair.
Rear speakers. Front speakers.
Filter settings front channels, CH1 + CH2
Filter settings rear channels, CH3 + CH4
D
C
RM40
Filter settings rear channels, CH3 + CH4
For power wiring, see page 4
For high or low level input wiring, see page 5
Set the switch to posi-
tion
HPF
to connect the
filter, or in postition
FULL
if you don’t want
to limit the frequency
range.
The high pass filter blocks
very low frequencies from
reaching the speakers. It is mostly used at say 60
Hz to protect small speakers ( like 6 inch and smal-
ler ) from deep bass.
The low pass filter is
mostly used for
subwoofers. It will allow
low frequencies only and
blocks higher frequencies.
A typical setting is 50 –
70 Hz.
Set the switch in position
LPF
to activate the filter.
Set the filter switch in
FULL
position if you want to
run the amplifier in full range mode.
Set the switch to posi-
tion
HPF
to connect the
filter, or in postition
FULL
if you don’t want
to limit the frequency
range.
The high pass filter blocks
very low frequencies from
reaching the speakers. It is mostly used at say 60
Hz to protect small speakers ( like 6 inch and smal-
ler ) from deep bass.
X-OVER
FULL LPF
HPF
FREQUENCY
50 Hz
500 Hz
200 Hz
X-OVER
FULL LPF
HPF
FREQUENCY
50 Hz
500 Hz
200 Hz
FREQUENCY
50 Hz
500 Hz
200 Hz
X-OVER
FULL LPF
HPF
Four full-range speakers, coaxial or component, connected to
all four channels.
NOTE!
Minimum amplifier load in stereo is 2 ohm, lower impedances
may damage the amplifier.
One 4 ohm subwoofer connected in bridge mode to channel 3
& 4, plus a front speaker pair in stereo to channel 1 & 2.
NOTE!
Minimum amplifier load in bridge mode is 4 ohm. This
connection gives a 2 ohm load with a 4 ohm subwoofer (the
load is halved when connected in bridge mode).
4 ohm
sub
TWO SUBWOOFERS
It is also possible toconnect two subwoofers in bridge mode to
RM40.
4 ohm
sub
4 ohm
sub
Use the LPF low pass filters on all channels.
