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FDP Forum / Fender Amps: 1985 - Current / The Prosonic Club: Classy Fender clean to full out shred, with the press of a button!!!

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Apr 26th, 2011 02:16 PM   Edit   Profile   Print Topic   Search Topic

The one in this link looks the same but not sure. As long as you get one with the 1/4" stereo plug you should be good to go.


(This message was last edited by Sheeba at 07:35 AM, Apr 27th, 2011)

Grey Goose
Contributing Member


Jun 7th, 2011 05:49 AM   Edit   Profile   Print Topic   Search Topic

It's taken me three days to read this thread (as time allowed). I believe that I'll probably have a Prosonic head sometime in the next few days.

This was mostly a good thread, with only a few exceptions.


Grey Goose
Contributing Member


Jun 7th, 2011 03:00 PM   Edit   Profile   Print Topic   Search Topic

I've got my Prosonic head. It looks like JE, so it was built May of 1999. The serial number is CR-xxxxxxx. I have it hooked to an open back 2x10 with Emi Ramrods. It seems like a very nice amp. No pop with channel switching and the effects loop is working great with a Fender Satellite SFX.

I traded a mid 90's Fender Twin Amp for this head. Not much is selling around these parts. He contacted me about the trade. I thought about it for a couple days and decide to see what the Prosonic is all about. Time will tell, so far so good.

Any of the original Posters of this thread still playing their Prosonics? Or is it a new group of players?


Naked Clarke


Jun 10th, 2011 09:31 PM   Edit   Profile   Print Topic   Search Topic

Nice head Goose. My son recorded with our combo again last weekend. It is still running well and sounds best with the original 10" Celestion speakers.

Contributing Member


"we've gone thru your file and...
Jun 11th, 2011 03:10 PM   Edit   Profile   Print Topic   Search Topic

I'm playing mine out tonight...haven't played it in a month. I have a sore shoulder and the Prosonic (2-10 combo) is heavy for its size. I usually go with a Deluxe Reverb.
This amp is known for the hot gain channel but I never use it. The sound of the normal channel in the class A setting is what I love. It is slightly modded: GE 5751 in the phase inverter slot instead of 12ax7 gives me a bit more clean headroom...I guess you could even go with a 12at7 but I've never tried it. A treble bleeding cap in the pre-amp side was clipped by a tech. JJ power selected for the class A setting. V1, V2, and V5 are GE short plate 7025s. It is sweet. :-)


The Netherlands

Jun 16th, 2011 05:43 PM   Edit   Profile   Print Topic   Search Topic

Yo Grey Goose, I was the third poster on this thread back in 2002 (god, how time flies) and I'm still using my Prosonics. For small clubs, I use my lizard green combo, and for larger outdoor gigs, a blonde Tone Master head containing my red snake Prosonic's chassis and a small three-spring Accutronics reverb tank. I run this 'Frankenstein' into a huge, ultra rare seventies Vox cab with four 12" high efficiency anisotropic Fane speakers that I picked it up for next to nothing a couple of years ago. It sounds absolutely staggering, bringing out all the nuances of the Prosonic, which, to me, is still the ultimate Fender amp.

(This message was last edited by Peghead at 05:44 PM, Jun 16th, 2011)



Jun 25th, 2011 03:31 AM   Edit   Profile   Print Topic   Search Topic

I've read this on the Prosonic club dated Jan 30th, 2003 11:46 PM
JeffFlowerday wrote;

"I have the VK cabinet and rewired it to 16 ohms. I have the combo sitting on top and it works great with the 2x10s and 2x12s togethor. The highs project better and then it handles the bass better with the 2x12s helping."

Is this possible? Because ones you put a cable in the external speaker jack, the amp changes from 16ohm to 8ohm.


The Netherlands

Jun 28th, 2011 02:26 AM   Edit   Profile   Print Topic   Search Topic

Ofcourse that's possible. The Prosonic's internal speakers are 16 ohms and so is the rewired VK cab which, in parallel, comes to 8 ohms.

Deacon Blues
Contributing Member

RIP: Edward Abbey

January 29, 1927 - March 14, 1989
Jun 30th, 2011 05:08 PM   Edit   Profile   Print Topic   Search Topic

I've just finished up a check-up on a Prosonic for a fellow band member. Took it off the bench and fired it up. Everything I've ever heard is true. Except there is no noise in this one other than the high gain hiss/noise on the gain channel. Nothing unusual. It goes with the high gain territory, IMHO.

Btw, this one is a surf green lizard skin amp dated March of 1997(HC).



Jul 1st, 2011 03:31 AM   Edit   Profile   Print Topic   Search Topic


ik dacht altijd dat je een 8ohm cab aan de combo moest aansluiten om samen met de inwendige speakers te gebruiken? Volgens wat jij zegt zou je ALTIJD een 16 ohm cab moeten gebruiken??
Man, ik heb dringend een spoedcursus in ohms-theorie nodig!!


The Netherlands

Jul 2nd, 2011 07:36 AM   Edit   Profile   Print Topic   Search Topic


Altijd handig om wat basiskennis te hebben over speakerimpedantie en er is genoeg info te vinden op het internet, zoals op deze site:

Speaker impedantie



Sep 21st, 2011 04:41 PM   Edit   Profile   Print Topic   Search Topic

Bought my Prosonic combo new in 1996, and it has been my main amp ever since. I put in Mercury Mag transformers & choke and recently replaced all of the electrolytics, and did the factory recommended mods for the reverb noise and channel switch pop.

V1 is a Raytheon 12ax7, V2, V3, V5, V6 are JAN Philips 12ax7's, and V4 is a GE 12at7. RCA blackplate 6l6GC's & a Mullard 5AR4 rectifier.
I clipped the 5pF cap on V1. I tried some Ted Weber speakers, but I thought the original Celestions sounded better

I never take it out of cathode bias/tube rectifier mode, because I love that sound.

I hate to use pedals with this amp because, hey - why put some soul-less transistors if front of all this tube mojo? OK, well maybe a wah pedal once in a while!

Jerry C

Poland, OH, USA

Dec 26th, 2011 02:35 PM   Edit   Profile   Print Topic   Search Topic

I've had my Prosonic since purchasing it new in 1996, and it has never missed a gig, and I play over 100 nights a year. I've had it re-tubed three times. It's always been road cased since new and I've never had a bit of trouble with it. It's a surf green combo, but it has a CR serial number.


United States

Dec 28th, 2011 04:35 PM   Edit   Profile   Print Topic   Search Topic

I have a 2001 or 2002 Prosonic Combo. Serial number starts with CR-26 It is truly the nicest sounding guitar amp I've ever had and anyone I've permitted to use it wants to buy it from me. I gig as a bass player, but use it at home for my own enjoyment. I just replaced the power tubes and neither of the tube rectifier positions works, so I've ordered a new 5AR4 rectifier tube. I always liked it best in the class-A position. I really appreciate the tips I've picked up on this thread and hope to try some of the suggested settings out once I get the thing working all the way. I've broken the reverb unit twice and am considering an upgrade. Any suggestions out there?



Apr 21st, 2012 07:58 AM   Edit   Profile   Print Topic   Search Topic

Just picked up a red lizard skin. Febuary '96 production.
Fender musical instruments on the chassis, sticker between the effects send/return, green jewel light, LO, custom shop and Scottsdale Arizona on tube chart inside amp.
The tubes seem to be original to the amp, that is, the ones that survived. the knucklehead I bought it from shipped it with the tubes attached and the footswitch inside the cab and unsecured. So the thing was bouncing around in there during transport, took out the power tubes and knocked out the rectifier tube. Thankfully no harm to the speakers. I had a couple of tubes laying around. So I put two EH6L6 in there.
The rectifier tube was intact but made a noise when you shook it. Took my chances and put it back in. I fired that baby up and was instantly impressed. It sounded so sweet. Only amp that ever made me say "wow" with just one chord.
After about two hours it started making funny noises and I assumed it was the rectifier tube. Read through this thread and based on some of your recommendations purchased some JJ6L6 and a JJ rectifier, also replaced the original Chinese fender preamp tube with some JJs. Popped them in and all is good. Yes it has the channel switching pop and reverb hum but both of those are non issues to me. And it runs hot!!!!! But I don't want to do anything about it cause it
sounds too good the way it is.

Contributing Member


Delta Blues Stringer
Apr 27th, 2012 04:44 AM   Edit   Profile   Print Topic   Search Topic

I have had my Prosonic since new in 2001. The tech service bulletins are all up to date, and I just re-tubed it. My fingers are paralyzed, and after 44 years, I've had to put down my guitars, but I've picked up the blues harp again after 20-somethings. I get real good clean channel breakup at around four using a vintage Shure Bullet mic with a low-Z XLR to high-Z 1/4-inch transformer. This is usually about the setting for neighbors to start calling the police. Is there something I can do to bring the breakup volume down? Also, I'd like to use the gain channel, only with a lot less of it. Would some valve changes help tame the beast?

Contributing Member


"we've gone thru your file and...
Apr 28th, 2012 08:00 PM   Edit   Profile   Print Topic   Search Topic

You could try a 5751 in the gain channel slot (v 2). The thing is...these amps aren't designed to be played really soft with the master down low and the gain cranked up. It's not an impressive sound. When you play out in a mid-size to large venue, the true beauty of this amp shines thru. I play out two nights a week in a small club with a Princeton Reverb. The Prosonic sits under my desk.


United States

Mar 3rd, 2013 02:49 PM   Edit   Profile   Print Topic   Search Topic

Well, I am new here, but thought I would post in this long standing thread.

I just picked up a Prosonic Combo amp this week. The guy said he bought it new in 1995 (not sure they were made then, but he seemed pretty confident). He kept the amp covered and well maintained. It looks like it just came off the shelf.

Loving it so far. Still messing with different settings.


The Netherlands

Dec 22nd, 2013 03:57 AM   Edit   Profile   Print Topic   Search Topic

For twenty-some years, the Prosonic has been at the top of my list, so I figured I'd move this thread back to the top of its forum.



Jan 16th, 2014 01:22 PM   Edit   Profile   Print Topic   Search Topic

Hey all you Prosonic People. I am new to electric guitar and amplifiers and am looking for some guidance. I bought a 1998 Prosonic combo about a year ago, i'm in love with it, and it's time to throw some new tubes in it (mine are starting to sound funny). I have ZERO experience with amplifiers or selecting tubes and could use some advice so I can choose the right tubes for a complete re-setup of the amp.

Because of this amps excellent capacity to get good and dirty I was hoping to install tubes that would exemplify the Prosonic's excellent clean tone (and of course still get good and nasty). I am looking for a complete swap out of tubes so advice on a complete tube setup would be really appreciated.

Thanks and keep jammin'

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FDP Forum / Fender Amps: 1985 - Current / The Prosonic Club: Classy Fender clean to full out shred, with the press of a button!!!

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