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These springs help to ensure tuning stability by returning the tremolo more quickly and accurately to the neutral position when the tremolo arm is released. The ZPS3 is a system of two additional springs connected with a linkage which are positioned in opposition to the main tremolo springs. This tool greatly simplifies the task of setting intonation. The Edge Zero incorporates an intonation tool which is stored onboard the tremolo. The stud locks provide an additional measure of tuning stability by increasing the stability of the studs.
Pro tools vs action strings install#
Initially the stud lock screws were not installed at the factory, but rather provided with the guitar for the user to install this practice was discontinued after a couple of years with guitars now delivered with the studs installed. The Edge Zero brings back the locking studs from the original Edge which were missing on the Edge Pro. Should this occur the fine tuners holes will need to be machined and a heli-coil insert installed. Overtightening (or even just normal wear) can cause this brittle metal to crack. One complaint with the Edge Zero is that it lacks the steel backing plate for the fine tuner screws which was a feature of the earlier designs this change means that the fine tuners are threaded directly into the more brittle zinc alloy of the tremolo body. This design is similar to the ZR design, although it is not identical. Instead, the bushing is installed inside a knurled collar which is used to adjust arm torque. Unlike the bar on the earlier Edge trems, the Edge Zero arm has no plastic bushing (athough an arm with a bushing from the other Edge trems will also fit the Edge Zero). The tremolo arm is a push-in style with a detent groove. Instead the base plate is built in a way so that the saddle heights match the radius of the fretboard. There is no allowance for adjusting the height of individual strings. The entire bridge can be adjusted up and down in the cavity to adjust the string action by raising or lowering the studs. The saddles can be moved fore and aft to set intonation of each string.
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Fine tuners attached to each saddle allow the player to adjust tuning once the nut is locked down. Like all double locking tremolos, the Edge Zero is designed to be use with a locking nut which anchors the strings at the headstock. This body is attached to a dense cast metal block connected to a set of three springs which balance the tension of the guitar strings and allow the tremolo to float in a cavity routed into the guitar body. The Edge Zero consists of a base plate cast of a zinc-based alloy (likely Zamak) with individual saddles.
Pro tools vs action strings pro#
The desire to eliminate royalty payments for their double locking tremolos was something that Ibanez had been trying to achieve since the introduction of the Edge Pro and ZR in 2003. This design finally eliminated any elements covered by the remaining Floyd Rose patents, the last of which was apparently the Edge Pro's low profile saddle design. It features knife edges which pivot against a pair of studs, a low-profile design and a push-in tremolo arm like the Edge Pro and Lo-Pro Edge, while incorporating the counter-spring ZPS3 Zero Point System tuning stabilizer, thumb-screw tension adjustment and saddles with on-board intonation tool of the ZR trem. The Edge Zero blends elements from several of its predecessors in the Ibanez lineage of Floyd Rose style tremolos into an original design.