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Got my Vibrolux modded...

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  • Got my Vibrolux modded...

    Just picked up my Custom Vibrolux reverb from a local amp guru guy. It's the first time I'd had it serviced, and I'm very pleased with the results.

    He checked everything out, and found a common export fender fault: the ampís input transformer was set to Australian 240 volt rather than NZ 230 volt. Apparently most of the new fenders he gets in have this problem. Changing the voltage has given the amp a 3db volume boost, and tightened it up a bit. Its amazing what that simple fix added to the amp.

    He also installed a negative feedback circuit. Basically, the CVR is fenderís discontinued mid 90s-era 63 vibroverb ri with some mods done by Bruce Zinky of the Custom Shop. One thing Zinky did was remove the negative feedback loop to give the amp a more dynamic sound and lower the headroom to get earlier overdrive. I had him put the loop in and make it switchable via a mini toggle under the chassis. With the loop in, the amp sounds more like a regular blackface fender, tighter, and with much more clean headroom (much quieter, too). Switch the loop out, and the amp jumps in volume, sounds zingier and (for lack of a better term) more SRV-like. Itís cool to have both options. Itíd actually be a pretty cool overdrive boost, but it would need to be footswitchable.

    Can't wait to gig it tonight. the amp may be loud and clean enough to gig without that bane of my existence, the mesa recto duo. I still love the sound of 2x12s, though.

    I also got a new power supply for my tubeman. I'd forgotten how cool the blues channel of that preamp is.
    Originally posted by Jolly
    ...but then again, I'm so deaf I can't even hear myself fart.

  • #2
    Re: Got my Vibrolux modded...

    To cool, bro. How loud is the clean on that combo?
    Ain't nothin' but a G thang, baby.

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    • #3
      Re: Got my Vibrolux modded...

      Well, it's louder now. I'd put it slightly above the blues deluxe with the feedback loop switched in, and less with it switched out. The amp was designed to overdrive early, but the vibroverbs it was based on have decent headroom. Not as much as a deville or a twin, though.

      Fender rate their amps with a fairly high distortion percentage, so my amp puts out about 30 watts clean, rather than the 40 watts that fender says it does. Before the voltage cahnge, it was putting out 20 watts.
      Last edited by Hot _Grits; 07-29-2004, 05:25 PM.
      Originally posted by Jolly
      ...but then again, I'm so deaf I can't even hear myself fart.

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      • #4
        Re: Got my Vibrolux modded...

        Cool. I'm looking for an amp with bigger cleans than my BF Export Bassman can give me. I guess the 'lux is out of the question for me then. On to the Twin...
        Ain't nothin' but a G thang, baby.

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        • #5
          Re: Got my Vibrolux modded...

          It'd be a move down slightly given the 2x12 speaker config. Welcome the back-breaking world of the twin...
          Originally posted by Jolly
          ...but then again, I'm so deaf I can't even hear myself fart.

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          • #6
            Re: Got my Vibrolux modded...

            That sounds like it turned out to be worth doing. I can only imagine that the Mesa 2-12 would help tighten things up a bit, especially with your PRS, since 2-10 open backs don't handle humbuckers quite as well. I love the natural grind those amps put out. I'd forgotten that Bruce Zinky worked for Fender. I'm curious about those new Zinky Superfly amps.
            Originally posted by Boogie Bill
            I've got 60 guitars...but 49 trumpets is just...INSANITY! WTF!

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            • #7
              Re: Got my Vibrolux modded...

              Originally posted by Hot _Grits
              It'd be a move down slightly given the 2x12 speaker config. Welcome the back-breaking world of the twin...

              My Bassman is a head. I'm already using a 2x12 speaker cab froman old Vox Buckingham that I loaded with a Jensen C12 and a Celestion V30. know what you me3an about backbreaking, I went to see a 99 Twin modeland it weighed a ton.
              Ain't nothin' but a G thang, baby.

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              • #8
                Re: Got my Vibrolux modded...

                Benjy, '65 twin ris are heavy but nowhere near as bad as the silverface, Rivera and red knob twins. Check one out. I played one, and it reminded me of SRV's 'Lenny' tone.

                GJ, turn up the volume on my CVR now and the thing turns into a flamethrower. The only remaining problem is that the amp doesn't handle bass especially well, regardless of speaker config. I'm going to look at a couple of small mods to do with this in future. Slowly but surely getting there. It's easier when you like an amp's intrinsic tone, and just have to work out some wrinkles. Some guys chase their tails and one day realise they've spent a fortune trying to turn their amp into...another amp.

                The guy I went to has apparently made variations on matchless amps, as well as tweed champ clones. I'm very interested to hear that stuff. I'm definitely getting him a 60s Ampeg jet or reverberocket to play with at some point.
                Originally posted by Jolly
                ...but then again, I'm so deaf I can't even hear myself fart.

                Comment


                • #9
                  Re: Got my Vibrolux modded...

                  Try switching one of your V30's for an Electrovoice 12L. It'll handle any kind of bass frequencies and will tighten up the sound considerably. I heard the v30/12L combo in a Marshall cab and it smoked.

                  BTW, It'll also be beackbreaking.
                  Ain't nothin' but a G thang, baby.

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                  • #10
                    Re: Got my Vibrolux modded...

                    Yeah. The mesa cab with v30s is 70lb, let alone with an EV...
                    Originally posted by Jolly
                    ...but then again, I'm so deaf I can't even hear myself fart.

                    Comment

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