Allen & Heath PA28 Mixer

Sku #634045000000000

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High-end features and formidable flexibility.

The Allen & Heath PA28 Mixer gives you all the tools you need to run a stereo PA system in a straightforward plug-and-play format. You'll quickly feel at home with a number of innovative touches based on many years of real-world experience. High-quality construction features on the PA28 Mixer include the same individual vertical circuit boards, nutted pots, and solid copper bus connections as the acclaimed ML series consoles. Experience the full, open, natural sound quality that has made Allen & Heath a respected name around the world.

24 mono channels with mic (XLR) and line (TRS) inputs (line input overrides the XLR input), individual +48V phantom power switches, and new padless 2-stage preamp with smooth gain law provide pristine sound quality. 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), plus 100mm fader on every channel.

Shelving LF (60Hz), and HF (12kHz) with fixed LM (250Hz), and swept HM (300Hz - 6kHz). The fixed 250Hz control on the Allen & Heath PA28 has been carefully selected to provide reduction of muddy sounds and enhance warmth.

4 stereo channels with 2 unbalanced stereo inputs on each--one RCA and one 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. Each stereo channel features 2-band shelving EQ, 4 aux mixes, stereo balance, mute with LED, PFL with LED, and 100mm fader as mono channels.

Auxiliary sends from all channels include 2 pre-fade for foldback mixes - these have 100mm fader masters, mute switch with LED, AFL with LED, and TRS outputs (which can be routed internally to output section). One post-fade aux mix for effects which feeds the internal effects and has a TRS jack output for external effects. One post-fade aux mix to a TRS jack output is provided for external effects or special feeds.

Main stereo mix output has 100mm fader control and mute with LED plus TRS jack outputs, mono sum output with level control and switch for subwoofer mode to TRS jack. Record output (RCA) analog and SPDIF switchable pre/post fader, plus twin 12-segment LED bar meters that show program (or PFL/AFL). Insert points on TRS jack for external processing as well as output EQ and routing to internal amplifiers/external systems are provided.

A 4-band semi-parametric EQ enhances the output section. This affects the TRS slave outputs and the internal constant power amplifiers, offering 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/foldback 1, or foldback1/foldback 2.

16-program digital effects processor provides reverbs, delays, chorus, and others, including combinations. This FX module takes its feed from the post-fade FX aux on the mono and stereo channels. The output of the FX module is controlled by a 100mm fader with mute and PFL and is routed to the stereo mix and FB1&2 with post fade level controls. 2 TRS inputs with level control provide a way of combining external effects with the internal unit. The internal effects can be switched off to use external effects only if preferred. A footswitch TRS jack is provided to mute the effects channel. Editing of effects can be done via MIDI using the software editor available free from the resource CD or the Allen & Heath website.

Background music (BGM) mode plays 2 track input into the main mix post fader, allowing the user to pull down the 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 the headphone monitor selector (checking recording) while twin, 3-color 12-segment LED meters display 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) analog + S/PDIF 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

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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