Custom Power Amp finally in the house!

Triaxis, Quad Preamp, Stereo Power series, Recto Preamp

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talltxguy
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Custom Power Amp finally in the house!

Post by talltxguy » Sun Mar 30, 2014 1:17 pm

The local Mesa tech in Austin and I discussed this project last summer. After a few setbacks, the amp is finally done!

It's got a Mesa power transformer. The choke & output transformer are from Marshall amps. There is a pentode/triode switch on the back, resonance/presence/volume controls on the front, full power/tweed switch on the front, 2 5U4GBs, & 2 EL34s, and adjustable bias test points for each EL34.

I've been waiting a long time for this thing, and I'm very happy to report that she gets along wonderfully with the Studio Pre.

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crane
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Re: Custom Power Amp finally in the house!

Post by crane » Tue Apr 01, 2014 12:28 am

Hey seems great !
On what act the resonance control ? NFB ?
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talltxguy
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Re: Custom Power Amp finally in the house!

Post by talltxguy » Tue Apr 01, 2014 2:39 pm

Crane, I'm not sure how the tech set up the resonance controls with the negative feedback. I do know that the negative feedback is not adjustable.
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Old BF Shred
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Re: Custom Power Amp finally in the house!

Post by Old BF Shred » Tue Apr 01, 2014 5:04 pm

Looks nice! Do you guys plan on building a second for stereo?

I'll bet it sounds terrific and being custom made you likely have something that sounds like no one else's rig.
That's probably the most fun part...it's unique!!

Enjoy! :D
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talltxguy
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Re: Custom Power Amp finally in the house!

Post by talltxguy » Wed Apr 02, 2014 1:07 pm

Old BF Shred,

No plans for a second power amp at this time. I'm very happy with the amp. I'm gonna do my best to give the GAS a rest and focus on playing.
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Jackie
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Re: Custom Power Amp finally in the house!

Post by Jackie » Wed Apr 02, 2014 2:35 pm

Nice, congratz! 8)

Do protect/cover the trannies and tubes in some way though, I'd freak out if I'd have a custom poweramp that exposed :shock:
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zamp
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Re: Custom Power Amp finally in the house!

Post by zamp » Thu Apr 10, 2014 9:13 pm

Out of curiosity, who's the local Austin Mesa tech (i need some work done on my Studio-Pre)?

talltxguy
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Re: Custom Power Amp finally in the house!

Post by talltxguy » Fri Apr 11, 2014 8:42 am

Jackie,
That amp will not leave the house without a cover. lol


Zamp, on the Mesa website, he is listed as the Audio Monk. His name is Anthony. His number is (512) 695-0960.
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zamp
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Re: Custom Power Amp finally in the house!

Post by zamp » Tue Apr 15, 2014 9:58 pm

Much appreciated!

talltxguy
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Re: Custom Power Amp finally in the house!

Post by talltxguy » Thu Dec 25, 2014 3:02 pm

No amazing Christmas presents to report. On a positive note, I found the money and a guy who is going to finish the custom power amp. He's gonna put sides & a top on it, put on front & back panels, replace the old-school knobs with chickenheads, and install a negative feedback pot.

Whew! This thing has been a long time coming.
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talltxguy
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Re: Custom Power Amp finally in the house!

Post by talltxguy » Tue Feb 17, 2015 2:40 pm

Ok, the amp is finally finished. Dan Lurie from FYD Amps added a faceplate, new knobs, a NFB pot, and the cathode/fixed bias switch.

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talltxguy
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Re: Custom Power Amp finally in the house!

Post by talltxguy » Wed Mar 09, 2016 2:37 pm

It's been nearly two years and I am still rolling with the same power amp. It's simply a miracle. :lol:

I have never owned a piece of gear for this long and not had any inclination to replace it.
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talltxguy
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Re: Custom Power Amp finally in the house!

Post by talltxguy » Mon Jan 30, 2017 12:00 pm

Approaching my 3-year anniversary with the power amp. Funny how much more into the playing I've gotten since chillin' on the GAS. lol
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Markedman
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Re: Custom Power Amp finally in the house!

Post by Markedman » Thu Feb 09, 2017 10:14 am

Thanks for updating this thread. I've been GAS free myself for the longest time now, about 9 months or so since I bought my JP2C. I'm currently snowed in and loving every moment with the amp turned up loud at 10 a.m.! My favorite set-up for a while was a Stereo-pre with a Simul-class 295 into a road ready 4X12 EV loaded cabinet. It sounded incredible and mean but weighed 250 pounds! I did many gigs with it, moving by myself most of the time. Headroom to die for when playing large outdoor gigs.
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talltxguy
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Re: Custom Power Amp finally in the house!

Post by talltxguy » Sun Dec 31, 2017 12:25 pm

I owned a Mesa 295 for a while. It was a great power amp. I liked it better than the 50/50 I used to play through. The 295 had more flavor to it. lol

I'm still playing through my custom power amp. I let my GAS chill out and finally been focusing on making music.
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