Fishman B II, OUTBOARD ACOUSTIC PREAMPS, PRO EQ II User Manual
Outboard Acoustic Preamps
Includes Instructions for
Model GII
General Purpose Preamp
Model BII
Acoustic Bass Preamp
Pro EQ II
Acoustic Instrument Preamp / EQ
User Guide
User Guide
Thank you for choosing a Fishman Outboard Acoustic Preamp. Our goal is to provide
you with the finest products for amplifying your acoustic instrument - systems that
simply let you sound your best. With our long-standing commitment to quality, you can
feel confident that your Fishman gear will produce great sound and trouble-free
performance for years to come.
Please take a few minutes to read this guide and familiarize yourself with the preamp's
controls. Your satisfaction is very important to us. If you have any questions, please
contact us at
tteecchh@@ffiisshhmmaann..ccoomm
; or by telephone at
997788--998888--99666655
.
PRO-EQ II SPECIFICATIONS
Measured with all tone controls at center detent and volume at max.
Nominal Input Level: -20 dBV
Input Overload (20 Hz to 20 kHz) +8 dBV
Input Impedance: 10 MOhm
Output Impedance: Less than 3.5 kOhm
Nominal Output Level: -20 dBV with input gain control
THD: .015% at 1 kHz, -10 dBV input,
Signal to Noise Ratio: 93 dB (A weighted, -10 dBV input,
Sub-Bass Control: 0 to +10 dB at 80 Hz
Bass Control Range: ± 11dB at 60 Hz
Middle Control Range: ± 8 dB at 1.25 kHz
Treble Control Range: ± 11dB at 10 kHz
Brilliance Control Range: ± 9 dB at 9 kHz
Current Drain: Less than 2.6 mA
Power Supply: 9V alkaline battery
All specifications subject to change without notice.
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Outboard Acoustic Preamps
Outboard Acoustic Preamps
Model GII & Model BII
Model GII & Model BII
The GII and BII are upgraded and updated versions of our classic Model G & B
preamps. Well suited for all acoustic instrument pickups, these new preamps are
enclosed in a tough injection molded case. Both models feature advanced new
electronics, which are quieter, cleaner and offer longer battery life than their
predecessors.
•
The GII is designed specifically for acoustic instruments including guitar, violin,
viola, 'cello and mandolin.
•
The BII offers the same basic features as the GII, but with the tone controls voiced
at slightly lower frequencies for upright acoustic bass and acoustic/electric bass
guitar.
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User Guide
User Guide
GII & BII FEATURES
Power
You can power your BII/GII two ways:
1 - 9 Volt Battery
Remove the battery compartment lid by sliding it up towards the top of the unit.
Place a fresh 9 Volt alkaline battery in the compartment and replace the lid.
NOTE: Make sure the battery is installed with the correct polarity.
You can expect 1,400 hours of continuous use. To conserve the battery, unplug
the input when you are not using the preamp. When you start to hear distortion
from the preamp, it is time to change the battery.
2 - 9-Volt AC Adapter Input
Use only a Fishman 910-R or Boss PSA series regulated AC adapter. If a 9 Volt
battery is in the preamp, no battery drain will occur when you use the AC adapter.
Input
The input accepts all piezo and magnetic pickups (passive or active). When you plug
in here, the 9 Volt battery switches on. To conserve battery life, remember to unplug
the input jack when you are not using the preamp. It is a good idea to turn down your
amp or mixer before you plug into the input of the preamp. Doing so will protect your
speakers (and your ears) from loud pops.
Output
Plug a standard instrument cable from the output to a stage amp, a DI or an
unbalanced microphone input on a Mixer.
Input Gain
You'll find this miniature rotary control recessed in the back of the preamp.
Like a trim control on a mixer, the input gain accommodates a variety of signal levels.
Use a slot head jeweler's screwdriver to raise or lower the input level.
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Outboard Acoustic Preamps
Outboard Acoustic Preamps
"Scooped" Mid
This is the popular "smiley eq " tone that emphasizes extreme bass and treble.
Strummer
This is a good overall setting if you mainly strum the instrument.
If the signal coming from your pickup is very weak, you may wish to turn the input
trim clockwise, which will raise the overall level and reduce system noise (hiss). If
you hear distortion when you play (with a new battery), lower the input trim until it
goes away.
Volume
For the cleanest signal, set this as high as possible without distorting your amp or
mixer .
Tone Controls
The Tone controls are boost/cut shelving style, which means they affect bass and
treble in a way that is both musical and pleasing to your ears. With the sliders at
their center detent positions, the EQ is flat and tone controls are out of the circuit.
Above center is boost and below is cut.
Bass
A Boost here will add depth and weight to the sound of an instrument with light
bass response. Lower the bass to tighten up the big boomy tone of a
dreadnought or jumbo guitar.
Treble
A Boost here will help to "cut through the mix" Conversely, lowering the Treble
will mellow and subdue your amplified tone.
Implied Midrange Cut
You can cut mids by boosting equal parts of bass and
treble.
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User Guide
User Guide
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