Fishman POWERMIX User manual

PowerMix

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OWNER’S MANUAL

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. Optimized piezo EQ, phase switch as well as output options

provide the missing link for the piezo/magnetic pickup signal chain.

Features

1 • Battery Compartment

2 • AC Adapter Input

3 • Mix Output Jack

4 • Piezo Input Jack

5 • Mag/Stereo Input Jack

6 • Piezo Phase Switch

7 • Low Battery LED

8 • Volume Control

9 • Bass Control

10 • Midrange control

11 • Treble Control

PowerMix

Piezo/Magnetic Outboard Mixing Preamp

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 the magnetic pickup's signal to the TIP terminal.

2-Route the magnetic pickup's ground to the SLEEVE terminal.

3-Route the Powerbridge signal to the RING terminal.

4-Route the Powerbridge ground to the SLEEVE terminal.

PowerMix

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.

Piezo/Magnetic Outboard Mixing Preamp

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).

BATTERY COMPARTMENT

To install the battery, move the latch on the battery compartment in the

direction of the printed arrow and pull the latch toward you. Once the

compartment pivots out, pop open the little hinged door at the end of the

compartment and insert a fresh 9V alkaline battery. Note that the door will

not close unless the correct battery polarity has been observed.

AC ADAPTER INPUT

USE ONLY a FISHMAN model 910-R or a Roland PSA series Regulated AC

Adapter. Using an unregulated power supply will void the warranty and may

damage the unit.

INPUT JACKS

The two Input jacks are designed to accept separate magnetic and piezo

signals via a single stereo cable or a stereo “Y” cable.

The Mag / Stereo Input jack is a dual function input that will operate in

either stereo TRS, or mono TS modes. The Tip connection of this jack

receives the magnetic pickup signal from your guitar. The Ring connection

of this jack can receive the piezo signal from your Powerbridge.

The Piezo Input jack is a mono input that receives the piezo signal from

your Powerbridge.

Piezo/Magnetic Outboard Mixing Preamp

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.

PHASE SWITCH

If you experience a volume loss when combining the Powerbridge with the

guitar's magnetic pickups, flip this switch to correct the phase relationship

between the two.

LOW BATTERY INDICATOR

When plugging into the Mix Output jack, the Low battery LED will flash

momentarily, indicating that the power is on. When the Low Battery LED

stays on with the jack plugged in, it's time to change the battery.

VOLUME CONTROL

This affects the piezo volume only.

BASS AND TREBLE CONTROLS

These are shelving style boost/cut tone controls. These affect only the

piezo pickup.

MIDRANGE CONTROL

This is a resonance style boost/cut tone control. It affects only the piezo

signal.

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.

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