Front Speakers; Rm40 Speaker Wiring: Four Speakers; Two Speakers + Bridged Subwoofer - DLS Reference RM10 Owner's Manual

Speaker connections to RM40
1. Four full-range speakers. One front and
one rear pair.
D C
Rear speakers.
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.
Filter settings front channels, CH1 + CH2
Filter settings rear channels, CH3 + CH4
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.
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.
TWO SUBWOOFERS
It is also possible toconnect two subwoofers in bridge mode to
RM40.
4 ohm
sub
Use the LPF low pass filters on all channels.
12

Front speakers.

FREQUENCY
200 Hz
X-OVER
50 Hz 500 Hz
FULL LPF
HPF
4 ohm
sub
2. Two full-range speakers and a subwoofer
connected in mono bridge mode.
4 ohm
sub
Subwoofer Front (or rear) speakers
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).
Filter settings front channels, CH1 + CH2
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.
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.
Filter settings rear channels, CH3 + CH4
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.
For power wiring, see page 4
For high or low level input wiring, see page 5
RM40
FREQUENCY
200 Hz
X-OVER
50 Hz 500 Hz
FULL LPF
HPF
FREQUENCY
200 Hz
X-OVER
50 Hz 500 Hz
FULL LPF
HPF