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Allen
& Heath PA20
20 Input Stereo Live Mixer

The PA20 mixer has been designed with all the tools you will need to
run a standard stereo PA system. With Allen&Heath's legendary innovative
design and excellent sound quality, these entry level consoles makes an
ideal live mixer for club performers, schools' systems, conference rooms
and traveling musicians. 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 our acclaimed ML series consoles. As for audio performance,
PA20 mixers have the wonderfully full, open, natural quality that you'd
expect from a professional Allen&Heath desk.
16 Mono Inputs
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]. 4" 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 4"
fader as mono channels.
4 Auxiliary Sends
From all channels: 2 pre-fade for foldback mixes - these have 4"
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.
Mix Outputs
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.
Output EQ
4 band semi-parametric EQ is provided in the output section, this affects
the TRS slave outputs. This offers more control than graphic equalizers
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.
Digital FX
16 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 4" 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 at the Allen&Heath website.
Master Section
Background music BGM mode - plays 2 track input into the main mix post
fader, allows user to pull down fader (while 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 color 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.
PSU
Solid & reliable internal PSU. 1600W design.
Lamp
4-pin XLR socket
Dimensions and Weight: 28.9"W x 7"H x 21.2"D - 37 lb

Allen & Heath PA Series |
PA12 | PA20
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