LIGHT WEIGHTCAB VIBRATIONS?/ AVATAR

He's nuts. I've had many, they don't vibrate more or less.

 

+1

 

That's STOOPID. Avatar enclosures themselves ferinstance use the same box construction with neo drivers as they did with non-neo drivers.

 

Also you "informed salesman" should have told you that cab vibration is correlated to bracing - not the actual weight of the cabinet.

If he was right - then all lightweight aircraft would shake themselves apart.


idiot.

 

The two are actually one and the same.

 

I put my cabinets either on the floor with the rubber feet, or up on a caster board I made so I can move the amp around on stage a bit, and vibration just isn't an issue. I did have my wireless, an XDS-Plus vibrate off the top of my Shuttle on one stage. I was using a NeoX-212T, light sorta, but at around 60 pounds, certainly heavy enough to not vibrate. It was the direct contact between the SHuttle with it's hard thin plastic feet sitting right on the cabinet that did it. The stage was a horribly hollow thin wood slat thing. You could feel it vibrate when you walked on it.

When I've used my light Epifani UL2-112 stack, zero vibration, and with my Bergantino AE112 stack, zero vibration.

 

Under the wrong circumstances - anything will vibrate on stage - you got an uneven stage ? Carry a carpet remnant for under your rig. I've been playing with neo's from Avatar and from Schroeder for the last couple of years - they are no more susceptible to vibration than my lead lined Bag Ends ... or the lead lined Schroeder 410R or the double lead lined Music Man HD212 or the ... so yeah - your sales guy doesn't have interesting and light to sell so he sells FUD...

 

OK. Well, commercial bass cabs don't place bracing and total rigidity at high priority, so less total weight is going to make a cab jump around more than the same thing with adequate bracing.

 

I could see his point if say the cabinet reached near weightlessness. Pushing 500 watts of bass through a pair of 10's in a whole cab that weighs 3 pounds would probably make the cab bounce off the stage on the first note you hit.

Extrapolating that, at say 5-6 pounds, you would expect the cabinet to stay in place, but still vibrate like a washing machine.

But once you get above 15 pounds or so, I figure you wouldn't detect any motion from vibration. And "luckily" they're not making 3-10 pound loaded 2x10 cabinets (yet), so we're safe from cabinets walking away under their own power.

 

I believe that what Greenboy (correct me if i'm wrong) is saying is that a cab, no matter how light, has no reason to vibrate if it has been properly braced. In other words, it is the lack of appropriate bracing that allows the ply to vibrate regardless of the weight of the cab, so they are "one in the same." IIRC

 

I think this is simply a case of the dude in the store not only not selling high-end lightweight cabinets, but never have used any either. Some sales guys like to spout off crap about things they have no experience with...and hope you believe him.

Bottom line, in my real world experience, lightweight cabs do not have a vibration "problem". I can not find one issue with any of them that would cause me to go back to heavier cabinets.

 

Actually that's exactly what i'm saying, the vibration is caused by lack of proper bracing not weight. If the same cab you mention below weighed 10lbs it'd probs be moving around due to the vibration (poor bracing) you are referring to, the only reason it doesn't is because it's so damn heavy. So again, a cab that is properly braced, regardless of weight, should not vibrate and as a result not move.(whether you can see it or hear it is the same principal).

 

My rack HAS made a vibrating sound while sitting on top of an avatar neo 212 but that was NOT the cabinet, it was the cheap rack.........

easily solved with a piece of foam between cab and rack(think cheap yellow bed padding type foam)

 

FWIW, I'm gigging with a 23lb 2x10. It doesn't vibrate, buzz, or move across the floor. Your Avatar Neo 112 is 39lbs and the 212 is 56lbs. You're not going to have any mass/vibration related issues. You might get rattles due to poor construction or a bad driver, but it won't be because the cabs are too light.

There is such thing as a "mass law" when analyzing vibrations in a system which says (in a nut shell) that the heavier an object is the less it will vibrate. We have all see this phenomena before. There is also another part of the equation when you're dealing with vibration that says the stiffer the cab panels, the less the vibrations will be. Also, all this varies with frequency. This stuff gets very complex very quick, so I'll spare you the details. The sales guy you talked to is full of shizzle.

 

Yes. But fortunately foam is properly rigid for what its purpose is and has no loudspeaker or mexican jumping beans attached. So this will never happen in earth gravatic conditions. Cabs, on the other hand...

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You seem resistant to the voice of experience and seem to deny anyone with actual knowledge of the principles involved. Good luck with that ; }