Rear Panel; Input Connectors 1-20; Phantom Power - Mackie SR24•4 Owner's Manual

REAR PANEL

All the audio and power connectors for the
SR24•4 are mounted on the rear panel, along
with the POWER and PHANTOM switches.
INPUT CONNECTORS 1–20
Input channel strips 1–20 (1–28 on the
SR32•4) are identical, and so are their input
and output connections. Each of these chan-
nels has a microphone input connector, a line
input jack and a channel insert jack.
MIC INPUTS
The microphone input to each channel
strip is made through a standard 3-pin female
MIC connector (sometimes called an XLR or a
Cannon connector), which is the largest of
the three connectors for each channel strip
[1]. This is a balanced input which will ac-
cept levels from –60dBu to +14dBu,
depending on the TRIM control setting. Input
clipping is at a level of 14dB. This input is not
for line-level devices.
Phantom power for powering condenser
microphones is available on every microphone
input. The global PHANTOM switch near
Figure A: Balanced XLR Connectors
18 17 16 15 14
INSERT INSERT INSERT INSERT INSERT
LINE IN LINE IN LINE IN LINE IN LINE IN
(BAL OR UNBAL) (BAL OR UNBAL) (BAL OR UNBAL) (BAL OR UNBAL) (BAL OR UNBAL)
MIC 18 MIC 17 MIC 16 MIC 15 MIC 14
RIGHT LEFT MONO
MAIN OUT MAIN OUT MAIN OUT
OUTPUT
LEVEL
BALANCED
OUTPUTS
PIN 2 = HOT
+6 PIN 3 = COLD
O O
2
SHIELD
HOT
3 1
COLD
SHIELD
1
3
COLD
2
HOT
SHIELD
1
3
COLD
2
HOT
13 12 11 10 9
INSERT INSERT INSERT INSERT INSERT
LINE IN LINE IN LINE IN LINE IN LINE IN
(BAL OR UNBAL) (BAL OR UNBAL) (BAL OR UNBAL) (BAL OR UNBAL) (BAL OR UNBAL)
MIC 13 MIC 12 MIC 11 MIC 10 MIC 9
SR24•4
TM
CONCEIVED, DESIGNED, AND MANUFACTURED
BY MACKIE DESIGNS INC • WOODINVILLE • WA
24•4 4 BUS MIXING CONSOLE
98072 • USA • MADE IN USA • FABRIQUE AU USA
the power cord connector turns phan- the power cord connector turns phantom
power on or off for all 20 mic inputs. See tom power on or off for all 20 mic
inputs. See Appendix C for more info. Appendix D for more info.
Pin 1 is connected to ground, pin 2 Pin 1 is connected to ground, pin 2
is signal "hot" (or "high" or "+"), and is signal "hot" (or "high" or "+"), and
pin 3 is signal "cold" (or "low" or "–"). pin 3 is signal "cold" (or "low" or "–").
See Figure A. See Figure A.
LINE INPUTS LINE INPUTS
The LINE IN connection [2] for The LINE IN connection [2] for
each channel strip is located just above each channel strip is located just above
the MIC connector, and is made through the MIC connector, and is made
through a a 1 / " TRS (tip-ring-sleeve) phone jack. 1 / " TRS (tip-ring-sleeve)
4 4
This is a balanced line input which will phone jack. This is a balanced line in-
put which will accept input levels from accept input levels from –40dBu to
–40dBu to +22dBu, depending on the +22dBu, depending on the TRIM control
setting. Input clipping is at a level of 22dB. TRIM control setting. Input clipping is
As with all of our balanced inputs, the at a level of 22dB. As with all of our
SR24•4's line inputs are just as happy re- balanced inputs, the SR24•4's line in-
puts are just as happy receiving an ceiving an unbalanced signal (tip-sleeve,
guitar-type plug). unbalanced signal (tip-sleeve, guitar-
type plug). The sleeve of the jack is connected to
ground, the tip is signal "hot" (or "high" or "+"), The sleeve of the jack is connected to
and the ring is signal "cold" (or "low" or "–"). ground, the tip is signal "hot" (or "high" or "+"),
and the ring is signal "cold" (or "low" or "–"). See Figure B.
See Figure B.
RING
TIP
Figure B: Tip-Ring-Sleeve (TRS) Stereo Connector
8 7 6 5 4
INSERT INSERT INSERT INSERT INSERT
LINE IN LINE IN LINE IN LINE IN LINE IN
(BAL OR UNBAL) (BAL OR UNBAL) (BAL OR UNBAL) (BAL OR UNBAL) (BAL OR UNBAL)
MIC 8 MIC 7 MIC 6 MIC 5 MIC 4
C A U T I O N
INSERT WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT
EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. DO NOT REMOVE COVER.
STEREO RISK OF ELECTRIC SHOCK
PLUG NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
DO NOT OPEN
AVIS:
RISQUE DE CHOC ÉLECTRIQUE — NE PAS OUVRIR
TIP OUT TO EFFECTS DEVICE REPLACE WI T H THE SAME TYPE FUSE AND RATI N G. UTI L I S E UN FUSI B LE DE RECHANGE DE MÊME TYPE.
RING RETURN FROM EFFECTS DI S CONNECT SUPPLY CORD BEFORE CHANGI N G FUSE
DEBRANCHER AVANT DE REMPLACER LE FUSI B LE
20
INSERT
LINE IN
(BAL OR UNBAL)
MIC 20
SLEEVE SLEEVE RING TIP
RING
TIP
SLEEVE
3 2 1
INSERT INSERT INSERT
LINE IN LINE IN LINE IN
(BAL OR UNBAL) (BAL OR UNBAL) (BAL OR UNBAL)
MIC 3 MIC 2 MIC 1
SERIAL NUMBER MANUFACTURING DATE
27