Neck Mount Strength on Yamaha RBX* A.I.R.?

Discussion in 'Basses [BG]' started by Bongolation, Jan 1, 2009.

  1. Bongolation

    Bongolation

    Nov 9, 2001
    California
    No Bogus Endorsements
    OK, so I supposedly have one of these RBX4 A2s on its way.

    I was looking at this page and was noting the little flash demo of how these things are built.

    I couldn't help but notice what looked like it would be a real problem with neck support in these skinned softwood bodies if there wasn't more to the mounting process than the animation indicated.

    Anyone have one of these long enough to comment on the long-term structural integrity of the neck/body joint?

    After having a v1.0 Italia Mondial (possibly the worst bass ever made) try to fold up and self-destruct at this point, I no longer take competent build engineering for granted.

    Thanks for any good data on this!
     
  2. RedsFan75

    RedsFan75

    Apr 26, 2007
    Cincinnati
    Haven't had mine long enough but it "seems" to be mounted solid and stable enough.
     
  3. mongo2

    mongo2

    Feb 17, 2008
    Da Shaw
    What problem do you think you're seeing?
     
  4. Gothic

    Gothic

    Apr 13, 2008
    Greece
    I was wondering kinda the same thing myself. The AIR technology, though serving weight reduction purposes excellently, just don't seem durable enough to me. I don't know, wood reacts strangely to climate changes, and the softwoods don't seem really dependable to me. Personally, I wouldn't risk it with the "softwood" bodies, although the sound and build seem quite good, and I was just a hair away from pulling the trigger on one... Time will tell!
     
  5. Moving Pictures

    Moving Pictures Supporting Member

    Jan 26, 2002
    Canada
    I have had my 5-string since they first came out and have not had issues with the neck joint whatsoever. I also live in an area with very cold winters and hot summers and have never seen the neck flex away from or into the body. They seem pretty good to me and I think Yamaha puts more into their engineering than a lot of other companies so I tend to trust Yamaha.

    Just my $0.02 worth....
     
  6. Bongolation

    Bongolation

    Nov 9, 2001
    California
    No Bogus Endorsements
    I tend to agree. Yamaha may have no mojo appeal, but they do seem to have engineering down.

    It's just the Flash demo seemed to indicate that the only real neck support was from the veneer, as the softwood core was not really structural -- presumably like balsa or styrofoam. :meh: It was also probably oversimplified for purposes of illustration. Anyone but Yamaha, I'd be really nervous with this, though.
     
  7. Moving Pictures

    Moving Pictures Supporting Member

    Jan 26, 2002
    Canada
    Most of the info posted by Yamaha is in truth less than useful regarding this. However that is usually the case for anything that is considered a brochure. :) From the bits I have read across the Internet it seems balsa is the most likely culprit for the interior wood, or at least one of its cousins. When I look at my bass the body seems reinforced around the neck joint and feels sturdy so I think that they did their job in this area. They certainly did with the sound :p

    I tried an Italia last year and it felt cheap in a way the Yamaha doesn't, construction-wise. I opted not to buy it and went for the Yamaha instead.
     
  8. Bongolation

    Bongolation

    Nov 9, 2001
    California
    No Bogus Endorsements
    The v1.0 Mondials simply self-destructed. Total garbage, incredibly stupid, unsound, crackhead structural misdesign.

    They apparently redesigned them and hopefully recontracted build.
     
  9. mongo2

    mongo2

    Feb 17, 2008
    Da Shaw
    I think if the core was balsa they'd be considerably lighter than the ones I've tried. Pine, Spruce, and Cedar as also softwoods and are heavier than Balsa.
     
  10. Bongolation

    Bongolation

    Nov 9, 2001
    California
    No Bogus Endorsements
    I've also read these had balsa cores. True? I dunno. :meh: Balsa varies a lot in density and strength.

    It seems to me that the hardware on these looks pretty heavy, so that might be from where some of the weight's coming. I'll know when mine arrives, I suppose. [shrug]
     
  11. mongo2

    mongo2

    Feb 17, 2008
    Da Shaw
    Could be. I'd be interested in knowing the weight of yours if you could post it when you get it.
     
  12. RedsFan75

    RedsFan75

    Apr 26, 2007
    Cincinnati
    My RBX4 A2 is around 6lbs 12 oz
     
  13. BluesyCat

    BluesyCat I'm irresistible. Gold Supporting Member

    Jul 28, 2006
    Southern California
    Staff: Bass Gear Magazine
    Got a sound clip to share??? Please. I'll PM my email address anyway.
     
  14. RedsFan75

    RedsFan75

    Apr 26, 2007
    Cincinnati
    I'll see if I can pull some together.
     
  15. Bongolation

    Bongolation

    Nov 9, 2001
    California
    No Bogus Endorsements
    A hair under EIGHT POUNDS, by accurate measurement. :meh:

    My original concern about structural integrity is unnecessary; the core wood is about as dense, heavy and hard as pine, and about the same color. I've seen entire bodies made of softer and probably lighter wood.
     
  16. RedsFan75

    RedsFan75

    Apr 26, 2007
    Cincinnati
    What method of measurement are you using.
     
  17. Bongolation

    Bongolation

    Nov 9, 2001
    California
    No Bogus Endorsements
    An office shipping scale that's properly calibrated in this weight range.

    Not that I needed much confirmation -- when I first picked it up I immediately knew it wasn't anywhere like the figures people have been mentioning. It simply wasn't particularly light.

    There's bound to be some weight variance from one bass to another, but I think some people are using the compensated bathroom scale method or something to come up with some of these lower figures. :meh:
     
  18. RedsFan75

    RedsFan75

    Apr 26, 2007
    Cincinnati
    Very True, as to a weight variances.

    I used the digital bathroom scale version along with a digital office scale from our shipping dept. Also tried a fishing scale but it wasn't incremented enough to really tell. All I could tell on it was it was right at 7lbs.

    The bathroom version (weigh yourself with the bass, then without and subtract) gave me 6 lbs 12ozs. My office scale gave me 6lbs 14 ozs, but like you said I knew mine was light when I picked it up. It's Significantly lighter than any of my others.

    I wish it was a tad heavier in the body as it doesn't quite balance the way I would like, but the sound and sustain is very nice on this one.
     
  19. mongo2

    mongo2

    Feb 17, 2008
    Da Shaw
    Just as an example of lighter instruments and different woods. I've DIY'd a P bass at just under 6 lbs and a J bass at just under 6.5 lbs. Both have bodies made of Paulownia wood.
     
  20. Bongolation

    Bongolation

    Nov 9, 2001
    California
    No Bogus Endorsements
    I'm still sort of surprised that they didn't do tighter weight-grading on this material (whatever it is), though, considering the whole point of this bass was "revolutionary light weight." :meh:

    Considering the thinness of the body, any number of wood options would have accomplished the same thing with less rigmarole.

    I once had a discussion with a guy at FMIC who was trying to get the weight down on Fender's MIA "Nashville B-Bender," which is a prodigiously heavy Telecaster with the Parsons-Green device (here's my personal piece). They found that by using a premium lightweight poplar, they could consistently shave a pound off the body. Using something like this with the RBX series might have been a simpler solution.