25
SPEAKER OUT
OUTPUT POWER: 250 WATTS / CHANNEL
MINIMUM SPEAKER LOAD: 2 OHMS / CHANNEL
SPEAKER OUT
LEFT / MAIN
RIGHT / MONITOR
POWER
T
W
120 VAC 60HZ 320W
ON
SPEAKER OUT
OUTPUT POWER: 250 WATTS / CHANNEL
MINIMUM SPEAKER LOAD: 2 OHMS / CHANNEL
SPEAKER OUT
POWER AMP 1 / MAIN
POWER AMP 2 / MONITOR
Stereo Version Speaker Connectors (408S)
Mono Version Speaker Connectors (408M)
The
TAPE IN
signal is routed to the mixer
bus just after the
RUMBLE REDUCTION
switch
and just before the
TAPE IN LEVEL
control,
MAIN MASTER
control, and
MAIN EQUALIZER
.
The
TAPE OUT
signal is tapped just after the
RUMBLE REDUCTION
switch, and before the
MAIN MASTER
control and
MAIN EQUALIZER
.
Caution:
When using the
TAPE OUT
connectors for
recording, don’t connect
the output of the tape deck
to the
TAPE IN
connectors.
If you do,
MAKE SURE
the
TAPE IN LEVEL
control is turned all the way down or you will
create a feedback loop that will cause great dis-
tress to you and everyone around you.
Rear Panel Connections
SPEAKER OUT
This is a 1/4" connector that produces an
unbalanced speaker-level signal.
Use 1/4" TS speaker cables to connect the
SPEAKER OUT
s to the inputs of your speakers.
Use at least 18 gauge (18AWG) speaker wire.
Caution:
Don’t use standard
guitar cables to make these
connections. Guitar cords
are designed for line-level
signals (millivolts and
milliamps), not speaker-level signals (several
volts and several amps).
There are two
SPEAKER OUT
jacks for each
amplifier. The jacks are wired in parallel so if
you connect two speakers to an amplifier, the
load presented to the amplifier is the parallel
impedance of both speakers. This impedance
must be two ohms or greater.
For parallel connections:
8 ohms + 8 ohms = 4 ohms
4 ohms + 4 ohms = 2 ohms
IEC Socket
This is where you connect the supplied AC
linecord to provide AC power to the PPM Series
powered mixer. Plug the linecord into an AC
socket properly configured for your particular
model.
Note:
If you happen to lose the AC linecord,
replacements are easily available at any office/
computer supply store or Radio Shack
®
(ask
for part number 278-1257).
Summary of Contents for 406M
Page 35: ...35 NOTES...
