Behringer MIC2200 2 Channel Tube Mic Pre

[supro66]

Behringer MIC2200 2 Channel Tube Mic Pre Rack Mount

http://pro-audio.musiciansfriend.com/product/Behringer-ULTRAGAIN-PRO-MIC2200?sku=182440&src=3WFRWXX&ZYXSEM=0&CAWELAID=26019221

I am looking into one of these
it uses a 12AX7
Lets see a 12AX7 is two tubes in one
So my guess each channel can flow thru this tube and have seperate tones

NO I AM NOT GOING TO TAKE IT APPART 

OK OK I am
I just have to see how it is made check out the voltages 

[HotBluePlates]

Well, I can't find a schematic for this preamp. But I do find a lot of unflattering chatter about how the tube is doing little or nothing. I wouldn't suggest opening it up and making changes, as most everything is likely happening inside opamps or chips.

[supro66]

Well, I can't find a schematic for this preamp. But I do find a lot of unflattering chatter about how the tube is doing little or nothing. I wouldn't suggest opening it up and making changes, as most everything is likely happening inside opamps or chips.

Please tell me about the CHATTER

I have not made my mind up yet

I guess I should just build something :shocked:

[PRR]

> TAKE IT APPART

You'd be sorry. It will be all surface-mount parts. Although it is a fine case and jacks for $99. Except the cover screws tend to strip.

It is the now-standard Cohen transformerless mike amp: 2 fat transistors and several opamps. With a hi-Z instrument input. Plus a 2-band EQ. And the usual "balanced" output line-driver. And an LED "VU meter".

Oh, and a tube in the middle of the front panel. (Which is apparently a terrible place to get to when you want to put in a better tube.)

The ART Tube Channel was roughly the same thing. It sounded good but not great. It was through-hole and I was able to decipher most of the signal path, break it, and investigate each stage separately. I thought it sounded better (clearer) with the tube stage bypassed.

These products, while fine, are NOT the classic Gates RCA Langevin tube mike amps of the 1930s-1960s.

The MIDI-man Audio Buddy is a fine little stereo mike preamp in the same price class, and no silliness about "tubes".

[supro66]

> TAKE IT APPART

These products, while fine, are NOT the classic Gates RCA Langevin tube mike amps of the 1930s-1960s.

The MIDI-man Audio Buddy is a fine little stereo mike preamp in the same price class, and no silliness about "tubes".

Thank you guys

That Midi-man Audio was the first one I looked at
But I thought a 12AX7 tube had to be better

That is why I asked

[RicharD]

Is that the Behringer everybody got in a tizzy about because they put yellow LEDs behind the tube to make it's glow look better?  Apparently they even went so far as to put a charge capacitor in the LED circuit to give the impression of filaments warming up.   



I've tried to service some Behringer stuff.  PRR is right, it's all surface mount components and it literally tends to self destruct when you open it up.  PC boards suspended by cheap ass pots -n- faders.  Boards so thin you look at them wrong and they crack.  Amazing that stuff survives the boat ride between China and Banjo Center.

[HotBluePlates]

Is that the Behringer everybody got in a tizzy about ...

Yep. 

[Jack1962]

Behringer makes cute toy's but that's all they make lmao

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