Control Room Out; Phones 1 And 2; Talkback Mic; Power - Mackie SR24•4 Owner's Manual

L L
R R
TAPE IN TAPE OUT
monitor your tape recorder with the TAPE
RETURN switches on the front panel. The
TAPE IN jacks are unbalanced RCA inputs
with a nominal level of 0dBu.
Caution: Assigning the TAPE RETURN
MAIN MIX could cause a several-megaton
feedback loop. Stick to control room/
phones monitoring while in record mode
on your tape deck.

CONTROL ROOM OUT

The CONTROL ROOM OUT L and R
jacks [15] carry the monitoring signal con-
trolled by the PHONES/C-R LEVEL knob on
the front panel, and should be connected to
the inputs of your control room monitor power
amplifier.
CONTROL ROOM OUT L and R are
impedance balanced 1 / " TRS (tip-ring-
4
sleeve) phone jacks with ground wired to the
sleeve, signal "hot" (or "high" or "+") to the tip
and signal "cold" (or "low" or "–") wired to the
ring. You can connect either balanced or un-
balanced inputs to these outputs. Nominal
level is 0dBu.
PHONES 1 & 2
The PHONES jacks [17] carry the same
signals as the CONTROL ROOM OUT L
and R jacks, with extra amplification to drive
stereo headphones. Careful; they're loud!
The connections are 1 / " TRS (tip-ring-
4
sleeve) stereo phone jacks wired for standard
stereo phones with common (ground) con-
nected to the sleeve, left channel to the tip
and right channel
wired to the ring.
PHONES 1
and PHONES 2
are parallel and
provide the same
signals.
CAUTION:
THE RISK OF FIRE, REPLACE
WITH THE SAME TYPE FUSE
For even more You'll get maximum smoke with 60-ohm
convenience, there headphones. (See tinnitus in the Glossary.)
are two more RCA

TALKBACK MIC

jacks labeled
TAPE IN. Connect
Remember the talkback function we talked
your tape playback about before? Here is where you plug in the
to the TAPE IN
microphone. This is a balanced mic input
jacks and you'll be [18] using a standard XLR-type mic connec-
able to quickly tor which will accept a wide range of
microphone levels and impedances.
NOTE: There is no phantom power avail-
attenuate control room out by 20dB.

POWER

Main power is provided through the IEC
connector at the lower left of the rear panel
[19]. An IEC power cord of relatively gener-
ous length is provided with the SR24•4.
Replacement cords are available anywhere
(try making that statement when you only
ship a lame wall wart with a mixer...).
A mains power fuse is located in a tiny
compartment in the power cord connector
housing. Replace only with the correct fuse.
It's a very good idea to carry spares.
Just to the right of the power cord connec-
tor is the main power switch. Turn this switch
ON for normal operation and OFF for silent
(ultra-ultra-
low noise)
mode.
120VAC
50/60 HZ 60W
1A/250V SLO BLO
FUSE INSIDE
TO REDUCE
AND RATING
able at the TALK BACK
MIC input.
ADDITIONAL NOTE: En-
gaging talkback to AUX
1/2 or MAIN MIX will
PHONES PHONES
1 2
POWER PHANTOM
ON
OFF
33
Layout
and Function
TALK BACK
MIC
ON
OFF