Fixed up an old Rockmaster preamp...digging it

Discussion in 'Other Amps' started by Riffraff, May 30, 2020.

  1. Riffraff

    Riffraff Well-Known Member

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    I picked up a Rockmaster preamp a few months ago that needed some work. It had a lot of crackly static noise, was cutting out and had major switching problems. I gave all of the jacks and the contacts in them a thorough cleaning, replaced all of the old relays, replaced the missing rack ears, replaced a broken bass pot in the Clean section and put all new knobs on it since it was missing all but a couple. I never tried one of these back when they were popular but I'm loving it now. I've been bitten by a vintage rack gear bug the last few months. I have a Lexicon MPX1 on the way to me now and have to pull my old Valve FX out of the rack to make room for it. This madness has to stop. :lol:

    Anyway, I figured out how to use my Ditto Looper with it today by running the Ditto through a rack line mixer. It's a blast. Here's the clip recorded live caveman style with a Jamman Looper pedal and a SM57 then married to some pictures with some crappy slide show software. The guitar was a MIM Tele. Excuse the wankery and over bends. :facepalm: I was just marveling at the tone and got carried away. I need to stop buying rack crap and invest in a proper DAW rig. :rolleyes:

     
    Last edited: Jun 3, 2020
    Trelwheen, AlvisX, tschrama and 2 others like this.
  2. shooto

    shooto Well-Known Member

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    I love that preamp...I could coax some really great low-mid creaminess that still cut through the mix like nothing else...

    ive been looking for a deal on another for awhile...cheers!
     
  3. Dogs of Doom

    Dogs of Doom Moderator Staff Member

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    you can find the heads quite often pretty cheap...
     
  4. Frodebro

    Frodebro Well-Known Member

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    I have one that I bought new in the early 90s, it was part of my gigging rig and has seen a LOT of use. Great preamp for crunch and dirty tones, but the clean channel is pretty anemic. I think Peavey was trying to make that channel sound like a Backstage or something...
     
  5. Drinkingdeath01

    Drinkingdeath01 Well-Known Member

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    i have one of these in my rack too but I haven't plugged it in in years.

    Mine never sounded as good as yours though. Lol.
    Great playing !!!!!
     
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  6. AlvisX

    AlvisX Well-Known Member

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    Gotta love the obsolete Peavey rack stuff !!
    I got this TB Raxx bass preamp cheap,to go with my $80 Marshall IBS head. Supposedly the difference between this and the TG Raxx (guitar version) is a couple cap values

    There's a lotta folks won't buy it if it says "Peavey", but I one .......

    [​IMG]
     
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  7. ibmorjamn

    ibmorjamn Well-Known Member

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    Caveman , my favorite ! Lol
    Well done !
     
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  8. Riffraff

    Riffraff Well-Known Member

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    I was one of those anti Peavey snobs once. It came from growing up playing in the '70s when Peavey was selling amps with SS front ends and tube power sections. I had a friend that had one back in high school and hated the OD tones from his amp. I was young and dumb and thought that's what a Peavey sounds like. Now I have a few Peaveys in my stash, this preamp, a Delta Blues 115 and a 6505+ head. All good stuff.
     
  9. Michael Roe

    Michael Roe Well-Known Member

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    Sounds great, nice playing sir!
    I had one of those back when they first came out. Unfortunately back then I didn't amplify it with a proper amp :)
    Your next logical step forward is to experiment with different power amps. That part gets expensive though :)
    Matching the right preamp with the right power amp can be quite fun!
     
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  10. Riffraff

    Riffraff Well-Known Member

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    The Peavey Classic series power amps are affordable and sound great but I'll probably just stick with the MosValve. I don't play out anymore so I don't need the headroom. Besides, I just bought a MPX1 for the rack and promised myself I would stop buying more crap I don't need. That's never worked before and likely won't this time either. :rolleyes:
     
  11. Michael Roe

    Michael Roe Well-Known Member

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    The different power amps can change the tone quite a bit. If you get a DAW and would like to try out some IRs with baked in different tube power amps, PM me your email along with what might be your favorite speaker cab and I will send you some from https://zombiecabs.com to check out. I'm the owner of that site, BTW.
     
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  12. ibmorjamn

    ibmorjamn Well-Known Member

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    Very cool of you Michael !
    I enjoyed listening on my phone , I will try later when I get back to civilization.
     
  13. Derek S

    Derek S Well-Known Member

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    Ahhh, the amazing Rockmaster...love 'em...easily one of Peavey's brightest gear achievements (IMO)...an awesome high gain tool regardless of any name slapped on the front!
     
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  14. JacksonCharvelAddict

    JacksonCharvelAddict Well-Known Member

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    These are real hidden gems. They hold their own against anything from that era in my opinion.
     
  15. proxy

    proxy Well-Known Member

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    Sounds good.
    How did you record this?
     
  16. Riffraff

    Riffraff Well-Known Member

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    I Recorded it live with a 2000's Digitech Jamman Looper pedal and a SM57. That gives me the ability to transfer the WAV file to my PC where I can normalize the volume with Audacity freeware then put the audio file and a couple of pictures in a slide show program and save it as a video. Like I said, caveman style. I don't have a decent recording set up.
     
    Last edited: Jun 7, 2020
  17. Riffraff

    Riffraff Well-Known Member

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    I'm not getting much playing time in these days. Even though I'm working remotely from home I've been really busy so I make sure to get up really early so I can spend a little time exploring different settings with the MPX-1 through the rack mixer with a variety of other effects. It's a wonderful box with depth well beyond my programming ability. :D Through it all my go-to preamp is still the Rockmaster. It just has that nice crunchy tone I'm looking for even......at 4 a.m. :lol:

    [​IMG]
     

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