Allen&Heath 21 Series User Manual
Page 4
![background image](/manuals/554151/4/background.png)
SPECIFICATION:
Construction:
steel main panel and covers, hard stove enamel paint
finish with epoxy ink screenprinted legend.
Semi-
modular electronic printed circuit assemblies. IC
op-amp and discrete transistor audio system of
transformerless design.
Size& Weight: MIXER
Width
Depth
Height
Weight
621 457 476 90mm
(160)
9.5kg
(600)
(620)
(14.0)
1221 673 476 90 14.0
(710)
(620)
(160)
(19.0)
1821 889 476 90 18.5
(930)
(620)
(160)
(24.0)
2421 1105 476 90 23.5
(1160)
(620)
(160)
(29.0)
bracketed figures = in shipping carton.
Connectors: Channel input, stereo and mono outputs; 3 pin XLR-type
locking.
All others 1/4" jack.
POWER SUPPLY: External,
type MPS7 110-120v
or 220-240v AC.
Phantom power option +48v MPS7P. (Symmetrical system)
OUTPUT = +15v
DC, smoothed and regulated
0.5 amps per rail
INPUT =
AC mains voltage at 50/60Hz
220/240v setting = 212v
to 250v AC 30VA max
110/120v setting = 106v
to 130v AC
PHANTOM POWER available as an option (specify MPS 7-P)
=
+48v DC,
smoothed and regulated at 50mA
CONNECTIONS:
MAINS INPUT = flying 3-core lead 1.5m long
DC OUTPUT = flying 4-core lead 1.5m long terminated
in a 5-pin XLR female in-line plug.
pin
1
= -15V DC
pin 2 = 0V
pin 3 = 0V
pin 4 = +15V DC
pin 5 = PHANTOM POWER (if fitted)
FUSES:
220/240V setting = 500mA quick blow 5 x 20mm
110/120V setting = 1A quick blow
1 1/4".