Question about Allen & Heath Allen Heath GL2400 32 Live Sound Console

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Where is the usb connection on the Allen Heath GL2400

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Dennis Engelking

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There is no USB connection on this unit

Posted on Jan 04, 2012


L. Sawyer

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That is correct. No usb.

Posted on Oct 15, 2014


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send a signal thru the sub 4 insert and see if it comes out the sub 4 output. You may have jarred a ribbon cable loose in transport.

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Have an A&H 32 chan , gl2400. when testing with the mic, i get a loud hum when boosting the master very up. Not happening with line source.

Make sure your mic cables are XLR to XLR and not cheesy Karaoke type cables with 1/4 inch mon plugs on the end. Please note that I have found some mic cables with wiring errors. They had the shield and one of the signal lines reversed. please verify that your XLR mic cables are wired with:
Go to thiis site and verify your cables:
Please note the pin numbers as they may not be what you expect. Ground is actually the shield or braid and the red and black are twisted pair signal lines.

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I Have a GL2400 Allen & Heath Console. The other day we were working out doors at a Festival and all of a Sudden I stopped receing signal to the Console. I tried all chanels and got the same result. I...

I will ask a question: Did you remember to power ALL inteconnected equipment from the SAME and I do meanALL and SAME receptacle or power conditioner module? If you powered your stuff from several receptacles in a large venue, likely ground system bounce has caused damage. I don't know what you mean by "dont get any signal in."... explain that... There are tests to run to isolate the problem but if you got hit with ground bounce transients you could have major damage. That is a big board for an outside venue so you might describe what you had configured from mics, etc. to speakers. ALL professionals know to run power back from where their amps are to the mixer alongside the snake. I will give you points for carrying a spare... ALWAYS a good plan as electronics DO fail and of course at the worst time.

Aug 24, 2011 | Allen & Heath Allen Heath GL2400 32 Live...

1 Answer

I would like to buy a case for The Allen & Heath ZED-436 is an audio mixer that gives you 32 mono inputs plus 2 dual stereo channels. Which one do you recommend that can fit it well.Please send me...

Cases are being sold on Ebay, new, from several sources, and if you can't find one specifically listed for your unit, contact the sellers as they custom build them. That is a big unit... expect to pay around $150 to $200 for an ATA type case for it.

Here is an example for a Heath/Allen 420.

I have bought from them before myself and there are others on Ebay so shop around... You can contact the companies and ask for a specific one and DO compare the size to your unit that they specify as all the companies do not accept returns...

Aug 14, 2011 | Allen & Heath AH ZED 436 32...

1 Answer

I have a A&H GL2400 - 32 ch.Console; How do i hook up (5) Effect units to the Console?

Is this for live sound? You can use your aux outputs as sends if you're not using them for monitors and return to spare channels. If any units are being used for only one channel, either run them in-line (use the effect unit's wet/dry settings) or use the channel's direct out and return to a spare channel.

If one effect is applied to several channels you could put those into a sub group, take that sub output to the unit and return the 100% wet mix to a spare channel.

Be careful not to send the return channels back to any auxiliaries you're using for effects.

Jun 18, 2011 | Allen & Heath Allen and Heath GL2400-32...

1 Answer

I have an allen and heath Xone 22 Mixer. Its great, except due to the lack of a power switch I pulled the ac adapter/power cord out too many times and now it has a really bad, loose connection. It works,...

Usually the connector that is board mounted is the problem. I would OPEN the unit as there may just be broken solder at the connector inside. If the connector requires replacement, find one at by searching for "power connector coaxial".

Hint: In the future install one of those little lamp switches that are in a little plastic box with knurled knob sticking out the sides. ONLY break ONE wire from the adapter to avoid getting the connections reversed. Since the wires are smaller than lamp cord, tack solder the wires to the piercing points of the switch .

Apr 11, 2011 | Allen & Heath Xone-22 2 Channel Dj Mixer

1 Answer

No sound

There can be any number of reasons for this problem - solve it diagnostically by starting with something that you know is working and work through systematically to the other end.
  1. Test a microphone on a separate amp to make sure it works okay. Check amp and speakers working. Check that all output cables from mixer to amp are working by testing separately.
  2. Plug microphone into a channel on mixer. Also plug in headphones and turn headphone volume control up.
  3. Make sure input sensitivity knob is turned up a bit (say half way) and main output faders (yellow) are up.
  4. Check that channel is turned on (little button just above the channel fader- needs to be pressed down)
  5. press pfl (pre-fade listen) button (next to button to switch channel on)- do you get any sound on main output or headphones or any indicator lights on mixer to show signal is getting that far (eitehr the individual channel metering lights or the main ones in the central section)?
  6. turn off pfl - make sure channel fader (slider) is up - normal position is ) - about 3/4 of way up. Check lights again on individual channel and main output section - any signs?
  7. Is the sub mix button for the channel pressed down - in which case you will need to bring sub mix (red) output faders up as well as main faders.
  8. If you have got signs of signal on the individual channel but not main see if the channel has been routed somewhere odd (like a subgroup of channels).
  9. Plug a working amp and speakers into one of the auxiliary outputs and use the relevant auxiliary send knob (on each channel just above the faders and pfl switches) to pan some signal to that auxiliary out - do you get anything? There is also a headphone socket for listening to the auxiliary channels (with a selector switch /knob to determine which one - make sure it is in the right position) try listening to the auxiliary output with headphones - anything? If yes the problem lies in the main output section.
  10. Check that there is not a jack plug in the insert socket (to route signal through an external effects unit) without a matching return jack being plugged in - if appropriate is relevant effects unit switched on and correctly set up - if unsure remove the insert plug to take it out of the system.
  11. Make sure any mute buttons are not switched in on main outputs.
You can download a full user manual here

Feb 22, 2011 | Allen & Heath Allen and Heath GL2400-32...

1 Answer

The internal fan has been making noise and now after 30 min or so we get a loud pop the a descending whine at deafening levels even with the board muted. I'm suspecting an internal supply issue in our...

Hey tifly415, did you ever fix this problem? My church has the same mixer and last night it did the same thing twice during a congregational meeting. No fan noise, but the meters all peg and we get this horrible descending squeal which gets louder as you pull the faders back in a moment of sheer terror and panic. Power it off and back on and it's ok for a while then it happens again. It's happened to me a few times during rehearsals in the past and it definitely is not mic feedback because no one was near the console or doing anything at the time. It seems to be totally random and unpredictable.

I, too, suspect a power supply problem, but it never seems to happen when my troubleshooting gear is nearby. The only thing unusual yesterday was that the mixer was left on almost all day, so it may have been warmer than usual.

Anyone else have the same problem, or better yet, know of a solution?

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