PA series mixers are designed to provide all the tools you need to run a
regular stereo PA system in a straightforward 'walk up and go' format. You'll
quickly feel at home with these desks, but you'll also find that Allen and
Heath have included a number of those innovative touches that you only get
from designers who have many years of 'real world' experience. If you care about
quality you'll also appreciate the build standards that the PA series conforms
to, including the same individual vertical circuit boards, nutted pots and solid
copper buss interconnection as the acclaimed ML series consoles. As for audio
performance, PA series mixers have the wonderfully full, open, natural quality
that you'd expect from a professional ALLEN&HEATH desk.
16 mono channels with Mic [XLR] & Line [TRS] inputs.
Line input overrides the XLR input. Individual +48V phantom power switches are
provided. New padless two-stage preamp with smooth gain law. Line input goes to
second stage for better matching and performance. Switched 100Hz high pass
filter. Insert point. 4 band EQ. 4 aux mixes. Mute with LED. PFL button with LED
[functions as peak indicator]. 100mm fader.
4 Band EQ
Shelving LF [60Hz], and HF [12kHz]. Fixed LM [250Hz], and swept HM
[300Hz - 6kHz]. The fixed 250Hz control has been carefully selected to provide
reduction of 'muddy' sounds and enhance 'warmth'
Dual Stereo Channels
Two stereo channels with two
unbalanced stereo inputs on each. One is RCA one is TRS jack. Independent gain
controls provide source mixing in the channel strip. The top inputs [RCA] can be
switched direct to L&R instead of the channel strip providing extra returns.
Two band shelving EQ. 4 aux mixes. Stereo balance, mute with LED, PFL with LED,
and 100mm fader as mono channels.
4 Auxiliary Sends
From all channels: 2 pre-fade for
foldback mixes - these have 100mm fader masters, mute switch with LED, AFL with
LED, and TRS outputs [can be routed internally to output section]. 1 post-fade
aux mix for FX - this feeds the internal FX and has a TRS jack output for
external FX. 1 post-fade aux mix to TRS jack output is provided for external FX
or special feeds.
Main stereo mix output
has 100mm fader control & mute with LED. TRS jack outputs. Mono sum output
with level control with switch for subwoofer mode to TRS jack. Record output
[RCA] analogue + SPDIF switchable pre/post fader. Twin 12 segment LED bar meter
shows program [or PFL /AFL]. Insert points on TRS jack for external processing.
Output EQ and routing to internal amplifiers / external systems is provided.
4 band semi-parametric EQ is provided in the
output section, this affects the TRS slave outputs, and the internal constant
power amplifiers. This offers more control than graphic equalisers for precise
management of speakers, especially foldback / monitors. Source selector allows
output EQ section to be used on Left / right, L&R sum / foldback1, or
foldback1 / foldback2.
Constant Power Amplifiers
i.e. 2 x 500W RMS peak power professional class AB power amplifiers built in.
Unique ALLEN&HEATH design gives full output into 4 OR 8 ohms [rear switch
selector]. Output is to locking Speakon� connectors. Thermal management twin fan
system. Full protection - input limiter to prevent clipping, short circuit
protection, current limit and DC fault sensing. LED indication of: signal
presence, peak warning, speaker protect and temperature. AB amp input TRS
break-jacks [normalised to output section / slave out jacks] allow independent
use of the power amplifiers if desired. Standby mode switch puts amplifier into
protect with speakers isolated.
program digital FX processor provides reverbs, delays, chorus and others, inc
combined. This FX module takes its feed from the post-fade FX aux on the mono
& stereo channels. The output of the FX module is controlled by a 100mm
fader with mute & PFL and is routed to the stereo mix and FB1&2 with
post fade level controls. At this point, 2 TRS inputs with level control provide
a way of combining external FX with the internal unit. Internal FX unit can be
switched off to use external only if preferred. A footswitch TRS jack is
provided to mute the FX channel. Editing of FX can be done via MIDI using
ALLEN&HEATH software editor available free from resource CD or our website.
Background music BGM mode - plays 2
track input into the main mix post fader, allows user to pull down fader (whilst
patching, taking a break, or during walk-in) and leave music playing through the
amplifiers / speakers. 2 track input [RCA] with level control to L&R - feeds
headphone monitor selector [checking recording]. Twin, 3 colour 12 segment LED
meter displays active monitor source. Large LED indicates PFL / AFL active -
signal overrides L&R / 2TRK monitor source selection. Standby switch uses
relays to disconnect the speakers. 2 track output [RCA] analogue + SPDIF allows
direct to digital recording. Switchable pre / post master L&R fader. Mono
sum out with level [TRS] - mode switch to provide sub feed with 100Hz low pass
filter. Phones out [TRS] with level.
Solid & reliable internal PSU. 1600W design.
4-pin XLR socket
0dBu = 0.775 Volts rms 0dBV = 1 Volt rms
TRS +21dBu into 2k ohm load
L-R +0dBu into 600ohm max
Other o/p's +0dBu into 2k ohmmax load
Mix to o/p +21dB
5dB before clipping
Noise -measured rms 22Hz to 22kHz
Mic EIN ref 150 ohm source -128dB
L-Rresidual <-89dBu (nothing routed)
L-R mix <-85dBu (channels
20Hz to 30kHz +/- 0.5dB
THD +10dbu, 1kHz
Channel to mix o/p <0.006%
Crosstalk - 1kHz
Ch to ch <-90dB
Chl mute shutoff<-95dB
fader shutoff <-95dB
Outputpower Constant Power switchable
= 2 x
500w RMS into 4 ohm
= 2 x 500wRMS into 8 ohm
Frequency response THD+N
<0.02% @ 1kHz
MainsPower - Internal unit, linear regulated Internally
wired to requiredcountry voltage
AC mains input 100V to 240V AC @
Powerconsumption 1600W max
Mains fuse rating
100-120V AC use T10A 20mm
AC use T8A 20mm
Width - 733
Height - 178 mm (7.0")
Depth - 539 mm (21.2")
Weight - 24 kg
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