O W N E R ’ S M A PowerMix N U A L Piezo/Magnetic Outboard Mixing Preamp
PowerMix Thank you for purchasing this accessory for the Fishman Powerbridge System. We are confident that the PowerMix preamp will greatly enhance the performance and utility of your Powerbridge system. Please read these instructions carefully. If you have any questions or problems, you can contact Fishman Customer Service at 978-988-9665. The PowerMix answers the requests from musicians for a compact outboard preamp, dedicated to mixing and combining piezo and magnetic electric guitar pickups.
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PowerMix Preparing Your Instrument Before you begin using your PowerMix, you need to have the magnetic and Powerbridge pickups in place on your guitar. Wire the guitar to a stereo output jack as follows: 1-Route 2-Route 3-Route 4-Route 4 the the the the magnetic pickup's signal to the TIP terminal. magnetic pickup's ground to the SLEEVE terminal. Powerbridge signal to the RING terminal. Powerbridge ground to the SLEEVE terminal.
Piezo/Magnetic Outboard Mixing Preamp NOTE: If you decide to wire the Powerbridge directly to the output jack (no instrument-mounted volume control for Powerbridge) you must wire a 5 Megohm resistor between the Ring and Sleeve terminals on the instrument's output jack.
PowerMix Functions BATTERY POWER Make note of the following when using the PowerMix under battery power. The PowerMix has no on/off switch. Under battery power, the PowerMix is turned on when the Mix Output jack is plugged in. To avoid excessive battery drain, unplug the Mix Output jack when the unit is not in use (battery life is an estimated 150 hours, continuous use).
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PowerMix NOTE: If you route two signals through the Mag / Stereo Input jack and plug a third signal into the Piezo Input jack, the signal that normally appears at the Ring of the Mag / Stereo Input jack will be replaced (overridden) by the signal appearing at the Piezo Input jack. MIX OUTPUT JACK A combination of buffered magnetic pickup and Powerbridge signals appear at this instrument level output.
Piezo/Magnetic Outboard Mixing Preamp Suggested Signal Routing Options STEREO CABLE OPERATION Magnetic and piezo signals from your instrument are routed through a stereo instrument cable to the Mag/Stereo Input jack on the PowerMix. The Tip signal (magnetic) goes to the magnetic input stage. The Ring signal (piezo) goes to the piezo input stage. In this case, the Piezo Input jack is unused.
PowerMix STEREO Y CABLE OPERATION Magnetic and piezo signals from your instrument are routed through a stereo Y cable. The magnetic pickup signal goes to the Mag/Stereo Input on the PowerMix. The piezo pickup signal goes to the Piezo Input on the PowerMix.
Piezo/Magnetic Outboard Mixing Preamp Specifications Nominal Input Levels Piezo -10 dBV Magnetic -10 dBV Magnetic Input Overload +10 dBV Input Stage Impedance Magnetic Input: 1 Megohm piezo Input 560 kohm Nominal Output Level and Impedances Mix Out 3.5 dBV (1 kOhm) Output Overload +11 dBV Bass Control Range ± 11 dB @ 80 Hz ± 3 dB @ 350 Hz Middle Control Range ± 11 dB @ 1.1 kHz ± 3 dB @ 1.3 kHz Treble Control Range ± 12 dB @ 10 kHz ± 3 dB @ 2.4 kHz Overall THD Less than .
LIMITED WARRANTY The FISHMAN POWERMIX is warranted to function for a period of One (1) Year from the date of purchase. If the unit fails to function properly within the warranty period, free repair and the option of replacement or refund in the event that FISHMAN is unable to make repair are FISHMAN’s only obligations. This warranty does not cover any consequential damages or damage to the unit due to misuse, accident, or neglect.
