Onboard acoustic guitar preamp – Fishman ABGP User Manual

Page 7

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11. KNOB ALIGNMENT

The stacked knob set controls treble boost & cut (small knob) and bass
boost & cut (large knob). Both knobs have a center-detent to indicate flat
position. Place the bass (large outer ring) knob onto the stacked shaft so
that the two inner protrusions slide into the corresponding slots on the outer
shaft. Now place the smaller treble knob onto the inner shaft. The white
position markers should align with each other in the center detent position.
Now place the large volume knob onto the appropriate shaft; rotate the knob
and remove to re-position the line if necessary for the desired sight refer-
ence position.

12. READY FOR USE

The power is switched on only when a 1/4” mono guitar cable is plugged into the out-
put jack. The AGP-2 features a “soft” turn on mode. This means that the unit powers
up gradually over several seconds once the instrument is plugged in.

S

SP

PE

EC

CIIF

FIIC

CA

AT

TIIO

ON

NS

S

SYSTEM GAIN

9 dB (input to output at 1 kHz)
All tone controls flat.

Maximum input voltage before clipping with all controls at full boost

.8V P-P

AGP-2 TONE CONTROLS
Treble: Boost and Cut

± 3dB at 1700 Hz
± 14dB at 20 kHz

Bass: Boost and Cut

± 3dB at 350 Hz
± 8dB at 50 Hz

Frequency Response

20 Hz to 20 kHz ±2dB All tone controls flat

ABGP TONE CONTROLS
Treble: Boost and Cut

± 3dB at 850 Hz
± 14dB at 20 kHz

Bass: Boost and Cut

± 3dB at 350 Hz
± 8dB at 50 Hz

Frequency Response

20 Hz to 20 kHz ±2dB All tone controls flat

POWER SUPPLY

9 Volts (battery not included)

Battery Life

150 hours continuous use (alkaline battery)

ONBOARD ACOUSTIC GUITAR PREAMP

7

All specifications subject to change without notice.

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