Question about DBX 2231 Home Equalizer

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Buzz when eq heats up

When the eq heats up (about 5 min of use) the top eq starts to buzz. How can this be fixed?

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Re: buzz when eq heats up

Got some device that is leaky and needs to be replaced, take it to a shop...

Posted on Sep 20, 2014

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A good majority of time when an EQ buzzes it is the power supply. Check that out and replace.

Mar 12, 2014 | Equalizers & Crossovers

1 Answer

How can u tell if ur eq going out ?

Use extreme settings like top 5 bands on max and all others on minimum - should sound really thin and hissy, and then bottom 5 bands on max and others on minimum, should sound really heavy and muddy. If you can't hear a difference then your signal is not going through the eq.

Feb 18, 2014 | Equalizers & Crossovers

1 Answer

3 monitors required for emx5016cf-- daisy chain? Any way to EQ monitors?

There are several ways to solve the problem. Probably the simplest technically is to connect a powered speaker (or separate amplifier) to one of the ST OUT jacks in the master section of the top panel for the third speaker, and connect the other two speakers directly to the speaker jacks on the back. The drawback to this arrangement is the possibility of problems with setting the frequency correction (automatic equalizer adjustment). You would have the same problem with paralleling speakers (more on this in a subsequent paragraph) on one channel. It may help to use a second speaker from each channel for the "third" monitor so the automatic EQ is working with the same setup on each channel.

Another method is to daisy chain the mixer by connecting another mixer/EQ amplifier to the pre-EQ SUB OUT jacks to drive the third speaker. This permits independent equalization and level setting for that monitor. (You would probably set this EQ first with the main outputs all the way down, then set the EQ on the two primary monitors.)

Regarding multiple speaker connections to the speaker out jacks: Do not connect them in series ("daisy chain"). Unless they are very closely matched, varying responses in the speakers may cause distortion, and each will be running at about half power. You can connect them in parallel (the + terminals are both connected to the SPEAKER jack + terminal, and the likewise the - terminals are all connected together), if the total impedance is as least 4 Ohms. Note that when two speakers are in parallel, the impedance is calculated as follows: (X1*X2)/(X1+X2), X1 is the impedance of one speaker, and X2 is the impedance of the other. In other words, parallel connection reduces the impedance, and too many in parallel will overload the amplifier. If both speakers are 8 Ohms, this works out to 4 Ohms. See page 29 of the owner's manual.

Dec 02, 2013 | Yamaha Emx5016cf Emx-5016cf Powered Mixer

2 Answers

How do I fix an eq problem?

It is a skilled work.. Seek tech support.

Jun 03, 2012 | Equalizers & Crossovers

1 Answer

Dbx 215 eq buzzing noise from ch 2 nor ch 1 solutions

ground and positive drive reversed? need more info.

May 10, 2012 | DBX 1215 Home Equalizer

1 Answer

I am experiencing a humming/buzzing sound which seems to improve when eq is in bypass mode.

Ensure that the power supply is clean and that the source audio cables are not touching or crossing power cables.

Jan 17, 2011 | AudioControl RIALTO Home Equalizer

1 Answer

I think I have my cables run improperly/no eq when playing tuner

You could tell us how the tuner, cd and eq are connected for a start. I suspect a Tape Monitor or Source/Tape switch is involved, either in the EQ itself or on a receiver if you have one.

Then you could start isolating for bad connections and cables by swapping the (separate???) tuner into wherever the CD is connected.

Jul 16, 2010 | AudioSource EQ200 Home Equalizer

1 Answer

Having a hard time connecting various audio components

Yes, it is a little tricky...

1) CD Changer (output) -> CD input on Amp

this is tricky... this will allow you to record to your tape deck, and control the sound via the EQ:
2) Tape Deck (tape out / recout) -> TAPE PLAYBACK on EQ
3) Tape RecOut on EQ -> Tape 1 Playback on Amp
4) Amp Tape 1 RecOut -> Tape Deck Playback / Input / RecIn
in essence, your creating a loop starting from the tape deck, going to the eq, then to the amp, then back to the tape deck to record.

Your EQ has another set of LINE IN and LINE OUT - use the second Tape 2 on the amp to create another loop. This will
allow you to control the EQ for any of the other sources.
5) LINE IN on EQ -> Tape 2 RecOut
6) Tape 2 Playback on Amp -> LINE OUT on EQ

5) Radio Tuner (output) -> Tuner input on Amp
6) DVD/VCR Combo Output -> AV/AUX on Amp

7) PC Computer... you don't have room for this. You can either use the PHONO input, and you'll have to purchase a Line Level Phono Converter
or, get a Y cable and split the signal and share with some other source.

Hope this helps.


Dec 13, 2008 | Technics SH-GE90 Home Equalizer

1 Answer

Hooking it up!

If the amp has PreIn PreOut connections, then thats the best way to go. Home theatre amps however, have 5 InOuts, and this makes it hard. You can use the tape loop. Hook up the rec out on amp to inputs on EQ, and output of EQ to tape in an amp, then engage the tape monitor function whilst ensuring that the rec selector has the source you wish to use the EQ for.

Nov 08, 2007 | AudioSource EQ-200 Home Equalizer

1 Answer


Have you isolated the problem to the equalizer only? By that, I mean remove it from the signal chain and bypass it completely. That's the first thing.Does the system make noise without it in? If dead quiet when removed then you go to step two.
If the noise returns when the EQ is reconnected, you should eliminate crappy or broken cables, connectors etc. Replace with a known good working set. Still there? Buzzing infers either a ground issue or some kind of power supply problem, only if the previous stuff is eliminated. Do this first, then ask again.

Nov 08, 2007 | AudioSource EQ-200 Home Equalizer

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