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The Tuba 36 debuts

Discussion in 'Amps and Cabs [BG]' started by Jim York, Jan 22, 2005.

  1. Jim York

    Jim York

    Oct 27, 2004
    The first of Bill Fitzmaurice’s Tuba 36 subs has been constructed by John Reynolds of San Antonio; Bill didn’t build the first himself as his New Hampshire workshop is closed for the winter. Unfortunately John doesn’t have any testing equipment, but as the following report tells it the planned Texas Sub Shoot Out should prove quite interesting indeed.
    Posted on the Bill Fitzmaurice Loudspeakers forum:
    HOLY CRAP!!!
    Ok now that that is out in the open lets proceed.
    My friend drove up from Corpus last night. His cargo included
    1 Carvin ProBass500 bass head
    1 Carvin DCM2500 power amp
    1 Carvin LB76bass guitar
    1 Carvin “redeye” 4 x 10 cabinet
    Assorted cables
    Evil intentions
    Ok, I expected the cabinets the Tuba36’s to sound good, that is just a given. But DAMN did they go loud! We ran the rig (which looks utterly ridiculous by the way) full tilt with no low cut engaged. It was quite frustrating trying to get the Magnum15LF woofers to distort or cause throat distortion in the cabinets. The output from the Magnum15LF drivers was MUCH higher than I had anticipated.
    Now I am not joking around saying we went to extremes. The low B string on the bass guitar was repeatedly de-tuned way WAY lower till you could easily count the cycles as it swung back and forth over the pickups. With the amp bridged dumping all 2500 watts into the cabinets ridiculous amounts of air was moved. Hitting the bass guitar body with palm of your hand (a favorite effect of ours that routinely bottoms out 18’s) proceeded to knock over beer bottles dumped crap off of a shelf in my pantry (a jar of mayonnaise took a dive and made a horrible mess) and caused my roof to flex. I am not kidding, I stood out side and could here the beams flexing and strange groaning emanating from my roof. My house is only two years old.
    The amp was eventually able to get some distortion from the cabinets, throat or driver I could not tell as I was not about to put my head in the horn mouth to do any critical listening. At that level of output you get dizzy being near the cabinets (probably from your inner ear fluid getting moved around) and your vision blurs. So we engaged the low cut on the amp on started on the ultimate volume stomp. Thus far with the low cut engaged the cabinets will not distort in any fashion.
    My friend got possessed and went on a freakishly low de tuned bass solo for around half an hour. It was cool to watch the world disappear to him and the sick look come across his face as he put out tones most bass players can’t even dream of. No low-end bass boost was used on the bass head, just some modest compression and the tone knobs on the guitar. The tuba36’s belted out every low tone put to them without breaking up, no matter how hard we tried, and trust me WE TRIED! We turned off the stack around midnight utterly amazed the cops did not show up. We will beat on the rig more today and probe for weaknesses.

    A related side note:
    My friend happens to live right across the street from a liquor store (how cool is that!). According to the people that work there, when the band practices in a converted garage the low bass notes going through the tuba30 “rattle every damn bottle in the store.”
    For updates log on to http://audioroundtable.com/BillFitzmaurice/
  2. Lockout


    Dec 24, 2002
    I don't know much about these Tuba designs, but after glancing over the stats of the designs available, this one has my attention. ;)

    The Tuba 36 sounds pretty crazy. I'd love to see a frequency response graph and some pictures of it.
  3. Ben Clarke

    Ben Clarke Liquidating to fund a new business. Buy My Gear!

    Jan 6, 2005
    Western NY
    Sweet! Though I'd imagine a bit of a pig to carry (no worse than an EV MT4, obviously), the Tuba36 would be a riot.

    Pete Golde is building me a 250a & T24 bass rig. Can't wait to hear it.

    The Tuba36 isn't on Bill's site yet, but if you buy the T30 plans, he'll give you the 36 dimensions as well if you ask. Looks just like the T24, right?


    These cabs are really a great answer to the problems many seem to be having with headroom and SPL. I fully expect to be satisified, and possibly overwhelmed with the output of a 130W tube amp, though my SPL needs are less than most who post here, I think. I may even be set using the B15 head section. We'll soon know. Hmmm... think anyone stocks an adapter that goes from the 4 pin XLR to a Speakon, and had the proper pins jumpered? I may have to break out the soldering iron.
  4. billfitzmaurice

    billfitzmaurice Commercial User

    Sep 15, 2004
    New Hampshire
    Owner, Bill Fitzmaurice Loudspeaker Design
    I doubt if the 3pin XLR to Speakon is likely, as only Ampeg used the XLR as far as I know. I'd say it's a DIY.
  5. ardorx


    Sep 23, 2004
    Sugar Land, TX
    the Tuba 36 sounds nuts. I want one.
  6. Ben Clarke

    Ben Clarke Liquidating to fund a new business. Buy My Gear!

    Jan 6, 2005
    Western NY
    Sorry, Bill. I was being a bit facetious. I've never seen a 4pin XLR anywhere else, anyway.
  7. 4 pin XLR's are actually VERY common, IF you know where to look. They're used mostly with intercom headsets where the microphone gets two conductors and the headset speaker gets the other two. Most electronic supply houses keep them in stock.
  8. billfitzmaurice

    billfitzmaurice Commercial User

    Sep 15, 2004
    New Hampshire
    Owner, Bill Fitzmaurice Loudspeaker Design
    What I meant was that I've only seen the 4 pin XLR used as a speaker connector by Ampeg; it's use abounds in the interconnect genre. I use them on my bass to deliver power from the amp to the onboard pre-amp.
  9. 2slick4u


    Jan 18, 2005
  10. 2500 Watts? That's madness! How many speakers do the Tuba36's have? And they're 15's right? How many were you using?
  11. LajoieT

    LajoieT I won't let your shadow be my shade...

    Oct 7, 2003
    Western Massachusetts

    LOL!!!! That's GREAT!!!!
  12. The 0x

    The 0x

    Aug 24, 2003
    Timonium, MD
    Just one. It's a folded horn.
  13. Ben Clarke

    Ben Clarke Liquidating to fund a new business. Buy My Gear!

    Jan 6, 2005
    Western NY
    Psycho, Bill,

    Thanks! I guess I done larnt sumpnin.
  14. Are these things really intended for bass guitar? I have seen clubs around here with these types of enclusures like integrated into the front of the stage on the floor helping the PA along, and I have seen some huge traynor PA's powered monitors with this design in them. People will actually put a couple of these in their cars for SPL competitions with double the wattage, I can't imgagine how loud that would be....
  15. DubDubs


    Aug 23, 2004
    Los Angeles
    No, they're intended for the PA just like you said. They can be used for bass guitar but it's overkill.
  16. Sounds like they're just the ticket for contra bass (F#) and sub-contra bass (C#). To quote Ted Theodore Logan "whooah".
  17. jokerjkny


    Jan 19, 2002
    NY / NJ / PHL
    and isnt that what we're all about in here? :D
  18. billfitzmaurice

    billfitzmaurice Commercial User

    Sep 15, 2004
    New Hampshire
    Owner, Bill Fitzmaurice Loudspeaker Design
    Overkill like hunting mice with an RPG. While the Tuba 24 is intended for electric bass the 30 and 36 are PA subs, though if one is just nuts enough (sorry, John, I calls em as I sees em) you can plug in your bass and create general havoc. Helps to have a couple racks of Lonestar along for the ride.
  19. john turner

    john turner You don't want to do that. Trust me. Staff Member

    Mar 14, 2000
    atlanta ga
    aguilar uses one of these for the footswitch connector for the db680.

    heh. just thought i'd share that :)
  20. blades976


    Oct 10, 2004

    Ask and you shall recieve.


    Would have replied sonner but I haven't been in this forum for awhile.

    More pics here .

    Pics of finished cabinets comminn soon.