Fishman POWERBLEND Manual page 6

• PIEZO EQUALIZATION
BASS and TREBLE CONTROLS
These are boost/cut shelving tone controls. They affect only the piezo (Powerbridge) signal
appearing at the Ring input of the STEREO IN jack.
MIDRANGE CONTROL
This is a resonance style boost/cut tone control. It affects only the piezo signal appearing at
the Ring input of the STEREO IN jack.
CLIP / LOW BATTERY INDICATOR
When plugging into the POWERBLEND, the Low battery LED will flash momentarily, indicating that
the power is on. When the Low Battery LED stays on with the Input jack plugged in, it's time to
change the battery. The LED will also flash when the Piezo Input is overloaded (clipping). In these
cases, lower the Piezo Trim until the light stops flashing.
PIEZO (POWERBRIDGE) BLEND PEDAL
Depressing the pedal adds the signal from the Powerbridge to the MIX OUT, XLR PIEZO OUT, and
the 1/4" PIEZO OUT.
PIEZO TRIM
Sets the piezo level relative to the magnetic pickups' level. Use this to balance the Powerbridge with the
guitars' magnetic pickups. Also, use this control to attenuate a clipped (distorted) piezo signal.
MAGNETIC THRU JACK
A direct unbuffered signal from the guitar's magnetic pickups appears at this output. Plug this into
the input of a guitar amplifier for unaffected magnetic pickup sound.
MIX OUT JACK
A combination of buffered magnetic pickup and Piezo Pickup signals appear at this instrument level
output. Use the Mix Out when you are limited to one input source for both piezo (Powerbridge) and
magnetic pickups. Typically the MIX OUT goes to a single channel instrument amp or a direct box.
XLR PIEZO OUTPUT
An electronically balanced, instrument level signal from the Powerbridge appears at this output.
For best results, plug this into an acoustic instrument amp or PA system.
GROUND LIFT SWITCH
This switch removes pin #1 from the XLR PIEZO OUTPUT. Use this switch to minimize ground loop
hum between the Powerblend and other audio devices.
PIEZO PHASE SWITCH
This switch reverses the phase relationship 180 degrees between the Powerbridge and magnetic pick-
ups. If you experience a volume loss when combining the Powerbridge with the guitars' magnetic pick-
ups, flip this switch to correct the phase relationship between the two.
1/4" PIEZO OUTPUT JACK
An unbalanced, buffered, instrument level signal from the Powerbridge appears at this output.
For best results, plug this into an acoustic instrument amp or PA system.
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