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  1. Pearl Ambassador USA

    Join Date
    Jun 2005
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    1,317

    Default Head options and tuning techniques by Gene Okamoto

    I've been monitoring the issues on the Forum surrounding choices of heads and tuning techniques for Reference and I thought we could make this thread the "go to" spot for these issues.

    I’ve been also monitoring the tuning issues with 12" Reference toms that some of you have experienced. We have never encountered tuning difficulties with any Reference toms and we've tuned a lot of them at NAMM, Messe, and PASIC! HOWEVER, since Reference was introduced, there were a couple of factory modifications applied to the OPTN "new-style" one-piece OptiMounts that provide better cushioning between the OptiMount and the shell, especially on 12” Reference toms.

    Please kindly see the attached PDF.

    There are two versions of the OPTN OptiMounts: I have them labeled "Type A" and "Type B". Type A OptiMounts have the flange facing downward on both the top and bottom OptiMounts. On Type B OptiMounts the flange on the top and bottom OptiMounts face toward each other.

    Regardless of which type you have, the orientation of the rubber washers is important.

    If you have Type A OptiMounts and the rubber washers are oriented as shown in the grey diagram (upper left-hand corner), please contact me and I’ll get you the new-style NP-419 rubber washers that give better cushioning. When you receive them, install them per the diagram at the upper right with the rubber washers oriented as shown in RED.

    If you have Type B OptiMounts and the rubber washers are oriented as shown in the grey diagram (bottom left-hand corner), please contact me and I’ll get you the new style NP-419 rubber washers that give better cushioning. When you receive them, install them per the diagram at the bottom right with the rubber washers oriented as shown in RED.

    If you need the new-style NP-419 rubber washers, please contact me at [email protected]. Please note, this upgrade is applicable only of US customers. European customers should contact Jeroen Breider at [email protected].

    Here's a photo showing the "flange" and the recommended orientation of the rubber washer.
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