Ten days ago,my dear friend mr.Dusan Papic called me to try his new PSG SD 10 Promat guitar.As his older guitars and this new beauty has really nice tone and touch.Beside remarkable sound ,first thing that one can notice ,is the absence of noisy sounds when pedals goes down and up and push the rod.As owner of one of the first Promat guitars I can tell you that this new changer is much better then on my guitar,and I sincerely recommend to all of you who like PP guitars.
The changer, that my friend Damir Besic displayed on this topic, features the following advantages compared to the classic changer:
-while rising the tone by pulling the string, the pulling force attacks the finger at the center of the finger. With this, bending torque moment is avoided, that would in other ways
cause twisting of the finger sideways, and produced asymmetric wear on the finger, and damage of the changer shaft. All the craftsmen who made overhauling to the PP-PSG, know
this concern.
-The pulling wire that pulls the finger produces no more friction between it and the aluminum finger for lowering the tone. That ways friction is reduced in the whole transport
mechanism.
-Last, but not least, the pulling force goes through the center point of the string mount, that influences positively the stability of staying in tonality.
-The berth of the push rod is convex-concave and maintains for the center position towards the point of attack, that wasn't the case with the standard PP changer.
-when the former changer assembly is examined, one will notice that the bushel that leans onto the Al finger for lowering the tone is almost never, or only in one position, for
a moment, pressed 100% onto the Al finger. At altering the attitude the proper seating is altered, the axis of the seating too. In the end position the bushel with its segment
leans onto the finger theoretically in one point, but in practice in one line on the edge of it's diameter. This leads to developing a striking notion that can be heard.
-The photo shows the new changer in action where the push rod is adhered to the finger for lowering the tone, with it's entire surface in any position.
As I learned from Mr. Papic, the price for the new Promat changer with these improvements will remain as it was for the classic changer.
