is generic audio dual opamp (see NJM for datasheet). Aside from working at very low voltages (+/- 2V?) there is nothing special. RC Dual Audio Operational Amplifier. Operating Voltage. ┬▒18 V Low Noise Voltage. ┬ÁVrms (TYP) Wide GBW. 12 MHz (TYP) Low THD. % (TYP). From a life instalation i still have a cheapo Behringer MXX laying around what a all the x in the name want to tell us?.

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The desk has a good layout I pretty open to any suggestion 450 point to risks and problems i ve overseen No op-amp swaps will give you the sound you’re after. This btw is done because regulations from official side Behringer denied to give out schematics I am thinking about OPA Some opamps do some things better than other opamps.

It looks like 16 on the Xenyx plus the headphone amp. Or have they done some nasty tricks to reduce noise that kills the sound anway regardless what op amps are doing the job?

What a circuit does add is as important as doesn’t add. The sound of the mackie was the best of all.

Is it really just that easy? Maybe 480 can buy an old and used soundcraft desk for the money? Any good argument can ooamp me before its too late ;- Thats this is a pretty uneconomical project is clear You can’t really compare two opamps and decide what opamp is best.


But a real Neuman style summing would need theire activ transformer isolated fader modules Some time ago I tested the behringer mx, a mackie cfx and a phonic MRX for a magazine Then the whole build quality is horrible anyway and that thing won’t survive for more than a few years.

Usually the stuff around the opamp will do more for the sound than the opamp itself.

The smd board of the behringer dont allows many trys Mendelt Member the Netherlands Posts: If you just put them in a circuit designed for cheaper opamps you can easilly make a stable circuit oscillate. If you want to improve the behringers you’ll first have to find out what opamps are causing the sound you don’t like and if it’s the opamps at all. 450

Basically the interna dont looks too bad I’ve done this before Would replacing of all op amps and exchange of the powersupply 45800 a heavier one, clear the situation and bring the behringer to an acceptable level? Or are there hidden traps?


Regardless the fact that its rather stupid to put that much work in a Behringer product I build a soundraft channelstrip some time ago, at the band practice I tried it on the singers vocals without telling anyone I’d probably try to find something the is alot easier to mod, with individual channel boards Allmost all op amps are NJM But what happens to the mean uggly behringer when doing just simple things like opamp replacement and maybe bypassing some caps?

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At least in relation that they are build by just tl opmap. Started by Nat The Lab. I think i should try opap i can make the bigges impact on the sound with specific op amps June 07, I have a MX If by the Oapmp sound you mean noisy – and I mean ssshhhh noise sssshh yyy sssshhh and 45800 inputs that suddenly stop working for no paticular reason and a PSU that has blown up twice then yep – thats a sound.

The inputstage has 2 non smd transistors.

Is the source of the Behringer sound the NJM op amp?

What op amps would be good to replace the NJM? These are the two problems i see with this: Any opinions regarding what result to expect? It sounded damn good. I realize there’s plenty of stuff out there which sounds better even in stock form.

I wonder if the source for the plastic behringer sound are just the cheap low power op amps I wonder if these komunist tl are somehow a special bread Especially the pre amps are surprising All my friends ask me if the Behringer is allready in the rubishcontainer and cant beliefe that i am thinking about putting work in it

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