jimialeggio wrote: > >> >>> That could be (backscale) the issue. > > Could you guys define "short" backscale? It depends on where in the scale it is. The low bass needs more back scale length than the high treble because the board has to move with so much more amplitude to produce anything remotely resembling a fundamental. If I can get over 120mm in the bass, I'm a happy guy. If not, as much as I can manage. The high treble 50mm is enough. It's not an absolute number sort of thing. You usually have to settle for what you can get, but try to get what you can. I've seen a piano with a treble back scale of about 8mm. The bridge pins stuck up out of the bridge taller than that. I have no idea what sort of bearing was there. I'm not sure how I'd try to measure it. Ron N
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