Wiring For 4 Ohm Or 8 Ohm Speakers (Sa Models) - Extron electronics MLS 304MA User Manual

l
Amplified output (MLS 304SA, MLS 406SA only) — Cable speakers to this
5-position screw terminal for either stereo or dual mono amplified audio
output. The switcher's default setting is stereo output. Dual mono (the same
signal output on both channels) can be selected via software.
C
C
The SA models' amplifier power-up delay is 8 seconds for either 4 ohm or
8 ohm output

Wiring for 4 ohm or 8 ohm speakers (SA models)

N The maximum power output when an MLS 304SA or MLS 406SA is wired for
4 ohm speakers is 24 watts (12 watts per channel). Maximum power output
for 8 ohm speakers is 16 watts (8 watts per channel).
Stereo Output
Stereo R+
AMPLIFIED OUTPUT
RIGHT LEFT
4/8 ohm STEREO OR DUAL MONO
Stereo R–
Stereo or Dual Mono Output
Mono +
or
Stereo R+
8 8
ohms ohms
Mono –
or
Stereo R-
4 Ohm Total Load
Stereo or Dual Mono Output
Mono +
or
Stereo R+
4 ohms
4 ohms
Mono –
or
Stereo R-
8 Ohm Total Load
Do not short the terminals to ground or the amplifier will be damaged.
Do not connect anything to the middle position of the 5-position screw
terminal; it is not connected to ground.
Do not bridge mono outputs. Bridging could damage the amplifier.
Dual Mono Output
Stereo L+
Stereo L–
4 Ohm Load or
8 Ohm Load
Stereo L+
AMPLIFIED OUTPUT
RIGHT LEFT
4/8 ohm STEREO OR DUAL MONO
AMPLIFIED OUTPUT
RIGHT LEFT
4/8 ohm STEREO OR DUAL MONO
MLS 304 Series, MLS 406 Series • Installation
Mono +
AMPLIFIED OUTPUT
RIGHT LEFT
4/8 ohm STEREO OR DUAL MONO
Mono –
Mono +
or
8 8
ohms ohms
Mono –
or
Stereo L-
4 Ohm Total Load
Mono +
or
Stereo L+
4 ohms
4 ohms
Mono –
or
Stereo L-
8 Ohm Total Load
Mono +
Mono –
4 Ohm Load or
8 Ohm Load
Two 8 ohm speakers
wired in parallel
equal a 4 ohm load.
Two 4 ohm speakers
wired in series equal
an 8 ohm load.
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