NEW PREAMP! X-12 Mic Preamp

owel · **Posted:** Fri Feb 27, 2009 5:15 pm

This preamp was inspired by "A" certain "P"reamp "I"ndeed!

But no, it's not a clone. Rather, I'd like to call it my FiveFish version

It uses input transformers with high-nickel and mumetal shielding, monolithic opamps and also has the option to use 990/992/2520 discrete opamps, null offset, output transformers, on-board voltage regulators, Relay-controlled -20dB Pads and Polarity Reverse, Soft-start phantom power, LED-lighted push button swithes, Grayhill selector switch, Bourns pot.

It uses a very very low distortion opamp chip for amplification, coupled to a high current, high-slew rate (2000V/us) video buffer driver subjecting that output transformer into submission.

The sound is huge and beefy... it will fight back when pushed hard, and slap you up and down silly to let you know who's boss... kinda like a rock n roll club bouncer.

(VU meter not shown in above photo, 5-LED VU Metering included in kit.)

Availability: Coming Soon! Pricing to be announced.

ML · **Joined:** Mon Feb 09, 2009 10:28 am **Posts:** 13

That's great news!!!
Will they be available in 500 series format? If yes, I'm ready.

ML · **Joined:** Mon Feb 09, 2009 10:28 am **Posts:** 13

Do you take orders right away?

owel · **Posted:** Sat Feb 28, 2009 12:39 pm

I'm packing the parts and writing the assembly manual. If you'll be ordering a pre-assembled preamp, I can take your order right away

But this pre is not *YET* a 500 format. That will be the next thing to do on my list.

ML · **Joined:** Mon Feb 09, 2009 10:28 am **Posts:** 13

Yes, I'm planning to purchase 2 pre-assembled X-12 units but 500 format.
When will they be available?

Can't wait!

corgan4321 · **Joined:** Wed Jun 27, 2007 3:54 pm **Posts:** 70

Oh BOY OH BOY OH BOY!!!

I cannot WAIT. I'll probably be in for a couple in rack format. Have you figured out pricing yet?

I assuming these are inspired by the old 1073s?? They look MAGNIFICENT!

I'm very excited.

TOMER1 · **Joined:** Sun Apr 27, 2008 7:16 am **Posts:** 14

Quote:

assuming these are inspired by the old 1073s

More in the direction of the API 512C I assume.

They do look amazing. :shock:

owel · **Posted:** Sun Mar 01, 2009 5:08 pm

More photos showing discrete opamps installed on the board. You don't need to desolder the 8pin IC socket. Just install the MillMax sockets and the discrete opamp will install with enough cleareance above the IC socket. (You'd need to remove the PDIP8 IC chip.)

with a JFET-992

with APP2050 (Made in Italy)

with APP10 (Made in Italy)

owel · **Posted:** Sun Mar 01, 2009 10:15 pm

X-12 Mic Preamp with a Melcor DIY Discrete Opamp

teerok · **Posted:** Tue Mar 10, 2009 3:23 am

what the.... :shock:

well I am stoked to hear what this sounds like

pixeltarian · **Joined:** Mon Sep 08, 2008 1:17 pm **Posts:** 49

so someone rack up a john hardy version already... ok maybe it will be me. but if someone else does I'd LOVE to hear some samples. I've been looking for a DIY 990 kit for some time. this is amazing. owel, you're moving in the right direction with your stuff. every new item is very drool worthy.

and in case someone needs a link to the hardy opamps:
http://www.johnhardyco.com/prices.html

guitarguy12387 · **Joined:** Tue Jun 17, 2008 8:33 pm **Posts:** 96

I have been wanting to put a 990 in... i read over on PPro that he's (John Hardy) been out of stock and unreachable lately though...

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NEW PREAMP! X-12 Mic Preamp

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