EQA-PZ S ystem
The EQA-PZ system was designed to allow bassists to achieve various soundPiezo Sensitivity Adjustments
possibilities by combining a magnetic pickup with the FISHMAN¨ Piezo-The piezo pickup responds to individual string vibrations. However, different
equipped Mono-Rail Bass Bridge. string gauges and player techniques can cause individual string outputs to
sound uneven. To handle these variations, the EQA-PZ system allows the
In addition to the Piezo Volume Knob and the Piezo Treble EQ Knob on thepiezo pickup sensitivity for each string to be adjusted so string-to- string
surface of the instrument, advanced adjustments can be fine-tuned byoutput levels can be properly balanced.
utilizing the following trim pots located inside the control cavities:
1) Set the Piezo Volume Knob all the way up and the Piezo Treble EQ Knob to
1Piezo Sensitivity Trims for individual string outputs. its center position. Internally adjust the Piezo Bass EQ trim 3 to the center.
2Piezo Output Trim to balance the master piezo signal with the magnetic
pickup. 2) Using a small screwdriver, adjust the
3Piezo Bass EQ Trim.Piezo Sensitivity Trims 1 individually to
(D)
balance the output level of each string.5-string 4-string
5B 4E
4E 3A
3) Turning the Trim Pot clockwise will3A 2D
2D 1G
increase the output level. Turning the1G N/A
Trim Pot counterclockwise decreases
the output level.
Note: If one string seems to have less output,
C
adjust that stringOs trim pot all the way up, thenenter
turn the rest of trims counterclockwise to
balance the output level.
1
2
3
Balancing The Piezo Signal Output Level With The Magnetic Pickup.
To utilize both the magnetic pickup and piezo pickup sounds, the piezo
output level can be adjusted by a Trim Pot 2.
1) To determine output level of the Magnetic Pickup, set the Magnetic Pickup
volume at 10, the Magnetic EQ at center and the Piezo Volume at 0. If
needed, adjust the overall height of the Magnetic Pickup.
2) After the Magnetic Pickup height is determined, turn the Magnetic Pickup
Volume back to 0 and the Piezo Volume up to 10, and then listen to the
Battery
output level balance of both pickups.
The battery should be changed when the volume becomes low or the sound
becomes distorted. Use a new 9-volt alkaline (not lithium or carbon) battery.
3) If the Magnetic Pickup output level is louder than the piezo, turn the Piezo
The battery is stored inside control cavity (D). Inserting a plug into the jackOutput Level Trim clockwise to increase the signal output level. To decrease
activates the power supply. Be sure to disconnect the cord when the bass is
the piezo signal output level, turn the trim pot counterclockwise.
not in use; this will prevent the battery from draining. |
ACEC
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