The spring compresses and you have its counteracting force to push the bridge back into position when you let go the bar. However, pull up on the whammy bar, and now the block pushes on the Back Box's bolt. It acts like the trem stop we saw last time. When you press down your whammy bar and lower the string pitch, the Back Box does nothing but provide a positive stop point for the sustain block to return to. After installation (as is common with most of these devices), you give the tremolo springs a little extra tension by turning the claw screws just a touch. There's a little thumbwheel adjustment to fine-tune this contact point. The device is screwed to the trem cavity floor so that the bolt touches the sustain block of the neutral position floating bridge. Well, free to move within the constraints of the captive spring that’s providing some pressure. Here, though, the bolt that contacts the trem’s sustain block is free to move back and forth in its housing. The Back Box is not unlike the adjustable tremolo stop we looked at last time. Of this type, the Göldo Back Box is the one I see most often so we’ll just go with it for our example. There are many similar devices (like the Ibanez Back Stop, for instance) but they work on the same principle. If you do a search for the term, you’ll find no end of devices resembling the Göldo Back Box. There are heaps of tremolo stabilisers on the market. Then a quick stop at stops (sorry) let us look at a couple of options to turn a floating trem into a dive-only system, thereby alleviating some of these problems.Īnd now we're stabilising things. After looking at how to physically block an unused tremolo, we talked about at the problems with 'flutter' (and other issues) endemic to floating trem systems. It feels like we've taken a circuitous route to get to tremolo stabilisers but I think it was the right way to go.
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