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Fusion Preamp
Interface
The Fusion Preamp Interface (FPI)
is a robust, exible interface designed for
safely connecting and controlling Leslie® speaker
cabinets. Not limited to just organs, the FPI expands
Leslie® connectivity to any ¼" audio source with unprecedented
ease.
The built-in preamp provides 26dB of clean gain with a simple ¼" audio input. It also features tone
controls, hi-gain switch, low cut switch, and e ects loop.
The ¼" TRS speed control input is compatible with any CU-1 half-moon style switch or dual
footswitch. A COT (Chorale/O /Tremolo) screw terminal allows optional hardwiring of speed
control. Two Y/N switches select either 2-speed or 3-speed setting for 122 and 147 individually.
All models come with all features included in the base model FPI-D-EFX, listed under "Features"
section below. Other standard models have expanded connectivity options, including 11-pin input
or output, and 6-pin input.
Bene ts:
• Allows simultaneous Leslie® 122/147 usage.
• Safe, low-voltage DC speed switching for 122 and 147 Leslie® operation.
• Capability to mount inside or outside of Leslie® cabinet or organ enclosure.
• Plug any ¼" audio source into your Leslie®.
• Low-cut switch eliminates muddiness for guitars or other higher-register instruments.
• Hi-gain switch means Lo-Z instruments (electric guitar or bass, for example) can be
plugged in directly.
Features:
• 122 and 147 outputs standard on all models, can be used simultaneously.
• Optional 11-pin input/output or 6-pin input.
• ¼" Audio Input.
• ¼" TRS Speed Control Input, compatible with any CU-1 style hand switch or dual footswitch.
• COT Terminal: Allows hardwiring of CU-1 hand switch or dual footswitch to unit for speed control.
• Preamp with 26 dB of gain and volume/tone controls.
• Includes mounting kit.
Standard Models Include:
• FPI-D-EFX: 122/147 6-Pin Output
• FPI-D11-EFX: 11-Pin Input, 122/147 6-Pin Output
• FPI-D11-11-EFX: 11-Pin Input, 11-Pin Output, 122/147 6-Pin Output
• FPI-D6-EFX: 6-Pin Input, 122/147 6-Pin Output
• FPI-D6-11-EFX: 6-Pin Input, 11-Pin Output, 122/147 6-Pin Output
The FPI is fully con gurable with a wide variety of input and output options. Contact us for
additional modi cations or customizations.
BookerLAB was created to maintain the quality of vintage musical instruments and supporting equipment,
speci cally the Leslie® Speaker Cabinet. BookerLAB o ers a range of products for interfacing gear, conversion,
motor control, and ampli cation. With products built solely in America, we've developed these unique systems
in collaboration with music industry partners. Explore our story at www.bookerlab.com
.
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