Allen & Heath PA28 Mixer  

Product #634045

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This product has been discontinued but may be available as a Open Box item.

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Allen & Heath

High-end features and formidable flexibility.

Allen & Heath PA 28
Mono Inputs
24 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
Four 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.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, 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.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 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.Master Section
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.

24 mono channels with mic (XLR) and line (TRS) inputs
Individual +48V phantom power switches
Switched 100Hz high-pass filter
Insert point
4-band EQ
4 aux mixes
Peak indicator LED
60Hz low and 12kHz high shelving
Swept high/middle
250Hz low/middle
4 stereo channels with 2 unbalanced stereo inputs on each
4 AUX sends from each channel with faders
Multiple stereo and mono mix outs
Output EQ
Pro-level digital FX
Powerful master section

PA28 Mixer Specifications:

4-pin XLR socket for lamp

37"W x 7"H x 21-1/5"D

46 lbs.
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Allen & HeathPA28 Mixer

(based on 1 review)

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Reviewed by 1 customer

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(6 of 6 customers found this review helpful)


Allen & Heath PA28....Mackie killer !


from Ontario ,Canada

Comments about Allen & Heath PA28 Mixer:

There's no doubt about it , this new line of mixers pack function , great build quality and a big bang for the buck value . The sound coloration is almost transparent in any situation . We put a celtic , bluegrass , zydeco , country , blues & rock bands through the PA 28 , and with alittle tweeking , all sounded clean & crisp . I love the multiple EQ sections , you can really dial in a near flat frequency response in no time on the mains , then sweeten up each channel individually as needed . I'm not a big fan of built in dsp , they never give you enough control over the parameters . Having said that , the dsp are quite useable if your budget is limited , but they are generic . You would do better picking up an old quadraverb for $50.00 & plugging it into the fx loop . Construction is standard for Allen & Heath , it is well thought out , built like a tank , and easy to service ( hey Mackie pay attention !) . Finally... Yes there are better boards out there but not at these prices , I would recommend this mixer as a great starting point for any band that needs more than 16 channels to gig with . PRO'S : price , sound , buid quality . CON'S : could use more FB busses , dsp generic .

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