To test the fit, the saddle should slide easily in the slot, but should not fall out when overturned. Remove only enough material from the width of the saddle to provide a sliding fit in the slot. 125" wide saddle (.09375" for Narrow Format) The bottom of the saddle must be flat. Organic materials such as bone or ivory are not as consistent and may result in poor string balance. RAMP PREPARE THE SADDLE We recommend synthetic materials such as Micarta or Corian as excellent saddle materials for the Acoustic Matrix. For such instruments, an adequate break angle can be realized by "ramping" the string slots or (in extreme cases) raising the saddle height and resetting the neck angle. A pickup in a Guitar with less than a 20° break angle will often have string balance problems as well as poor tone. The NO MORE THAN 50% pickup will "see" an acceptable amount of downbearing pressure when there is a 20° (minimum) break angle across the saddle. MECHANICAL FACTORS AFFECTING PICKUP PERFORMANCE BREAK ANGLE There must be an adequate amount of downbearing pressure on the pickup in order for it to perform optimally. Custom pickup lengths are available from Fishman. DO NOT trim the end of the pickups length as ground hum will occur. Poor string balance may result with string spacings greater than this. The actual sensing area of the pickup is 2.670" long and can accommodate string spacings of up to 2.500" (63.5 mm). We recommend a saddle slot length of at least 2.875" (73mm). recommended string spacing: Narrow Format Width: Height: Length: Sensing Area: Max. 100" (2.54 mm) PICKUP DIMENSIONS WIDE Format Width: Height: Length: Sensing Area: Max. Flex Shaft Tool with 1" (25.4 mm) Diameter Saw Blade or Router with 1/4" (6.30 mm) cutter.9375" Plunging Cutter for Narrow Format) Carefully insert (do not bend) the pickup. Clear wood chips and foreign materials from the saddle slot. Center the mark between the walls (width) of the slot. Mark the location where the wire will enter the saddle slot. Locate the center of the wire hole no less than. Back Plate with Battery Clip LOCATE THE WIREHOLE 1.(3) Adhesive-backed Plastic Wire Guides.3/16" Brass Hex Jack Screws (4), 1/2" length.1/4" Aluminum Hex Standoffs (4), 9/16" length.4-40 Screws (4), 3/16" length, with Star Washers.FISHMAN ® ACOUSTIC MATRIX PROFESSIONAL SYSTEM PREAMP INSTALLATION PARTS LIST
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