[Benon]

Does anybody know if there's a double mic preamp which allows routing signal from two sources to one output? I'm doing some research about using electronics on bass clarinet and one mic is just not enough to cover the whole range. I have been using Radial Engineering Voco-Loco but apparently there's no double mic version and I can't find anything ev remotely close to this. I have tried to do this with small mixing desk but I couldn't solve hum from ground loop problem. Any ideas?


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[milandro]

yes my AKG has a double input and single output. It is old but still works

The modern version is essentially the same, I think.

 

[Pete Thomas]

Does anybody know if there's a double mic preamp which allows routing signal from two sources to one output? I'm doing some research about using electronics on bass clarinet and one mic is just not enough to cover the whole range. I have been using Radial Engineering Voco-Loco but apparently there's no double mic version and I can't find anything ev remotely close to this. I have tried to do this with small mixing desk but I couldn't solve hum from ground loop problem. Any ideas?

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A mixer is what you want, any hum would be the fault of the mic wiring I think rather than the mixer.

 

[adamk]

With a mixer you can turn the balance to one side on each input and only use that side out for mono.

 

[milandro]

all of this you can do with this ( no hum)

 

[JCBigler]

Depending on what kind of microphone you are using, a simple Y cable could do the trick. I have combined two mics together to Y into the same channel many times. Or a combiner box. Both work fine with dynamic mics. Condensers may need a separate power supply depending on their draw.

http://whirlwindusa.com/catalog/black-boxes-effects-and-dis/combiners/imp-combiner

But, a 2 channel mixer will allow you to adjust the gain on each of the two mic elements to taste, and provide routing to your effects units.

 

[turf3]

For this kind of thing I use a small four channel Behringer mixer that cost me something like $150.

 

[adamk]

For this kind of thing I use a small four channel Behringer mixer that cost me something like $150.

I have 2 of those but got them cheaper.
One has effects the other doesn't

 

[Benon]

yes my AKG has a double input and single output. It is old but still works

The modern version is essentially the same, I think.

Milandro, what's the model designation? I am having trouble finding it.

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[milandro]

It's a B9 ( this is the old type)

It's a power supply unit but has a small preamp and double inlet and single outlet

Newer units do essentially the same thing
( here they call it a mini mixer)
https://www.akg.com/support/B23_L.html

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[Pete Thomas]

It's a B9 ( this is the old type)

It's a power supply unit but has a small preamp and double inlet and single outlet

If I recall the B9 is indeed a power supply, not just a preamp. It is specifically designed to work with specific mics - presumably this is purely to do with the voltage. So I would just doublecheck, before using it with mics that don't require a power supply, that it won't damage them.

Basically it's a mixer (it has balance control), so my advice to just get a small mixer still stands.

But also, if you are going to plug in mics that do need phantom power, then the B9 probably doesn't provide enough.

I have at times mistakenly plugged in 48v to dynamic mics and it didn't kill them, and I've heard it's usually OK for most modern mics (dynamic or ribbon). Just thought I'd mention it though because sometimes it's good to be extra cautious especially if you have expenisive mics.

 

[milandro]

yes but op may acquire a whole akg system having the two mikes that he seeks

 

[Benon]

If I recall the B9 is indeed a power supply, not just a preamp. It is specifically designed to work with specific mics - presumably this is purely to do with the voltage. So I would just doublecheck, before using it with mics that don't require a power supply, that it won't damage them.

Basically it's a mixer (it has balance control), so my advice to just get a small mixer still stands.

But also, if you are going to plug in mics that do need phantom power, then the B9 probably doesn't provide enough.

I have at times mistakenly plugged in 48v to dynamic mics and it didn't kill them, and I've heard it's usually OK for most modern mics (dynamic or ribbon). Just thought I'd mention it though because sometimes it's good to be extra cautious especially if you have expenisive mics.

I was going to use RE20 and Sennheiser 421, they're both dynamic as far as I know

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[milandro]

then they won’t do, I think, with this mixer

Please Benon disable that message that telles us you have an Iphone and use tapatalk

 

[Pete Thomas]

Analalogue

https://www.thomann.de/pl/behringer...iLCJjdXJyZW5jeSI6IjIiLCJsYW5ndWFnZSI6InBsIn0= €55

(Looks a bit like overkill but look at the price...)

Digital
https://www.thomann.de/pl/focusrite_scarlett_2i2_3rd_gen.htm?ref=sb_trend_0 €148

 

[Benon]

then they won't do, I think, with this mixer

Please Benon disable that message that telles us you have an Iphone and use tapatalk

I will try. I was not aware of that, sorry.

 

[milandro]

I will try. I was not aware of that, sorry.

Thank you, a lot of people have this message which displays in their posts ( each and everyone) but they don't seem to see it

 

[turf3]

Pete, that little Behringer mixer looks very much like what I have though I think a different model. Works great. Has phantom power for condenser mikes (though I don't have any condensers). Cheap. Flexible and can be used for many different purposes, unlike the single-purpose equipment implied by the OP's original question.

 

[Pete Thomas]

Pete, that little Behringer mixer looks very much like what I have though I think a different model. Works great. Has phantom power for condenser mikes (though I don't have any condensers). Cheap. Flexible and can be used for many different purposes, unlike the single-purpose equipment implied by the OP's original question.

Yes, they are such good value. I bought a couple once for various little jobs, admittedly one did have to go back as there wasa fault, but I've heard most people speak highly of them. And generally Thomann don't stuff that will be an issue.

New information from the OP, ie it's two different microphones, makes me think more and more the answer is a small mixer as opposed to a preamp that merges, because even with a balance knob (as with the B9 or modern equivalents) it gives no control over balancing the tone of the mics should you need to do so.

And in this situation it's also crucial to make sure there are no issues with the mics being out of phase with each other so you must always check for this. Often this is an issue that some people won't spot in stereo especially when the mics aren't extremely close together which would be the case here.

 

[Benon]

Yes, they are such good value. I bought a couple once for various little jobs, admittedly one did have to go back as there wasa fault, but I've heard most people speak highly of them. And generally Thomann don't stuff that will be an issue.

New information from the OP, ie it's two different microphones, makes me think more and more the answer is a small mixer as opposed to a preamp that merges, because even with a balance knob (as with the B9 or modern equivalents) it gives no control over balancing the tone of the mics should you need to do so.

And in this situation it's also crucial to make sure there are no issues with the mics being out of phase with each other so you must always check for this. Often this is an issue that some people won't spot in stereo especially when the mics aren't extremely close together which would be the case here.

I have also contacted Radial Engineering Support, and they suggested me using their mix 2in1 in conjunction with the Voco Loco Preamp (which I currently own). Mix2in1 is a passive XLR mixer with balance knobs, so I will check it soon and let you know if it works.