Fender Vibrosonic Reverb as a Bass Amp

Discussion in 'Amps and Cabs [BG]' started by Hakkolu, Jun 10, 2020.

  1. Hakkolu


    Jun 4, 2011

    I have a Vibrosonic Reverb silverface from the 70s. It has Jensen, MOD15-200, 200 W, 8 ohm speaker in it. I believe this speaker is used in Bass cabinets as well as guitars.

    I believe it is a 100W amp. I wish to use it as a Bass Amp.

    Do you think it would be loud enough for a club gig?
    Do you think it would sound good? (It sounds good to me in my basement)
    Does anyone else have experience using Fender guitar amps for Bass? Need solidarity.


  2. abarson


    Nov 6, 2003
    Santa Cruz
    It's not a bass speaker and the open back cabinet is also inappropriate for bass.
    BassmanPaul likes this.
  3. Stumbo

    Stumbo Guest

    Feb 11, 2008
    At low volume, guitar amps can sound really good for Bass.

    Unfortunately, a guitar speaker does not have enough Xmax (how far a speaker cone can move) to handle a bass at high volume, especially in an open back cab.

    If you still want to use the amp, I suggest unplugging that speaker and hooking up a real bass cab, maybe sit it on top of a 4x10, which are pretty cheap on the used market these days.

    Also, since guitar amp tone controls are voiced differently than bass amps, I would add a bass eq in your signal chain to compensate.
    seamonkey likes this.
  4. Hakkolu


    Jun 4, 2011
    Thanks for your feedback.
    Question: The listing in Amazon calls it a Guitar and Bass speaker. The Xmax is +/-2 which is total 4mm. I saw the specs on a "Bass" speaker as 4.68mm. So I am curious, why would you call this a guitar speaker?

  5. kramerj


    May 22, 2003
    Iowa City, IA
    I played bass through a friend’s Vibrosonic when i was rehearsing with a pickup jazz band at a convention. It sounded awful, but it could have had a blown speaker. I also used a Fender Pro Reverb with bass speakers when I was in a low volume acoustic trio. It was okay but not ideal. The suggestion of using the Vibrosonic with external speakers might be worth a try.
  6. Blues Bass 2

    Blues Bass 2 Supporting Member

    Oct 3, 2001
    Davenport Iowa
    It will work with an external bass cabinet but don't use it with the Jensen in the open back . It would sound pretty good with a bass cabinet and the Jensen might sound ok in the right cabinet but it would blow pretty quickly in that combo .
    Last edited: Jun 17, 2020
  7. filmtex


    May 29, 2011
    The vintage Vibrosonic that I owned in the early 90's never worked for me as a bass amp. It was all original and in mint condition. I hated to get rid of it, but I never had a use for it at the time. YMMV
  8. BassmanPaul

    BassmanPaul Inactive

    Simply put it's the wrong tool for the job as a bass amplifier.
  9. Wild Rice Chris

    Wild Rice Chris

    May 7, 2005
    Palatine, IL
    Rice Custom Guitars (retired)
    I played one guy through a '72 Vibrosonic Reverb with Bag End S15-D extension cab. I think I had an EVM-15L in the Fender. The gig was supposed to be a laid back background blues thing for a hotel grand opening, but it turned into an oldies/rock dance party by the second set. The Fender had trouble keeping up with the band at that point.