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User’s Guide
User’s Guide
Fishman Classic 4
™
www.fishman.com
www.martinguitar.com
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User’s Guide
The Classic 4 system installed on this fine instrument offers the
quality sound and versatile tone shaping that you expect from
Fishman. At the heart of the system is our classic equalizer which
lets you zero in on the four key frequency bands for acoustic guitar.
The Classic 4 system utilizes the Fishman Sonicore™ coaxial
under-saddle pickup.
Setup
To Replace the Battery
Pinch the two tabs at the top and bottom of the preamp and pull
the housing out to reveal the battery compartment. (illustration)
Install a 9-volt alkaline battery in accordance with the polarity
marks on the case. (illustration)
You can expect 300 hours of continuous use. To conserve the
battery, unplug the cord at the guitar when you are not using
the system.
Classic 4 User’s Guide
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Pull Tabs
Polarity
Marks
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Endpin jack
Plug a standard instrument cable from the endpin jack to a stage
amp, a DI, or an unbalanced microphone input on a mixer. When
they are plugged in, the preamp switches on. To conserve battery
life, remember to unplug the endpin jack when you are not using
the pickup system. It is a good idea to turn down your amp or mixer
input before you plug into the endpin jack input. This will protect
your speakers (and your ears) from loud pops.
Features
Low Battery Light
This light has two distinct functions:
1. Power Up Indicator
The Low Battery LED will flash briefly when you plug in your
guitar. Some people ask us, “Why doesn’t this light stay on, like
a conventional pilot light?” We believe that a steadily lit LED
devours too many precious hours of battery life. Since the light
flashes briefly only when the unit turns on, battery power is
conserved and battery life is extended.
2. Low Battery Warning
When the Low Battery LED lights steadily, it is time to change
the battery.
Volume
For the cleanest signal, set the volume as high as possible without
distorting your amp or mixer.
Classic 4 User’s Guide
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Volume
Bass
A boost here above the center detent will add depth and weight to
the sound of the instrument. Move the bass slider below the center
detent to tighten up a big and boomy tone.
Middle
More than any other control, the middle slider can affect the character
of your instrument’s tone. Typically, a slight mid cut, just below the
center detent, will help bring out roundness in the bass and will
unmask the treble. A deep midrange cut produces a “scooped out”
tone that works well at high volume levels and can help to reduce
feedback. Boost the mids for an “in your face” nasal quality, similar
to electric guitar tone.
Treble
A boost here will help to “cut through the mix.” Conversely, cutting
the treble will mellow and subdue your amplified tone.
Brilliance
This slider can add shimmer and sparkle to your sound.
It zeros in on “extra crispy” high frequency tones, the realm of
harmonics and acoustic string sound. Lowering the Brilliance
slider can help to reduce finger noise and fret buzz.
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Classic 4 User’s Guide
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Classic 4 User’s Guide
Sample EQ Settings
Here are a few suggested settings for the Classic 4:
Finger Style
This is a popular eq setting that
emphasizes extreme bass and treble.
This will add fullness to the bass and
definition to the treble.
“Scooped” Mid
This setting will reduce harsh midrange.
Strummer
This is a good overall setting if you mainly
strum the instrument.
Cut through the mix
This setting is helpful when you need
to be heard through a loud band.
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Classic 4 User’s Guide
Specifications
Nominal Input Level -18 dBV
Input Overload -4dBV (20 Hz- 20 kHz)
Input Impedance 20 M Ohm
Output Impedance Less than 3.5 k Ohm
Nominal Output Level -6 dBV
THD Less than .04%, -18 dBV input
Signal to Noise Ratio 77 dB (A weighted, referred
to nominal –18 dBV input)
Current Drain Less than 1.9 mA
Power Supply 9V alkaline battery
(est 300 hrs continuous)
Bass Control ± 12 dB at 60 Hz,
± 3 dB at 350 Hz
Treble Control ± 12 dB at 10 kHz,
± 3 dB at 2.4kHz
Middle Control ± 12 dB at 700 Hz
(3 dB bandwidth at 1 kHz)
Brilliance Control ± 9 dB at 10 kHz
(3 dB bandwidth at 7 kHz)
All specifications subject to change without notice.
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Classic 4 User’s Guide
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www.fishman.com
www.martinguitar.com
®
All specifications subject to change without notice. 17L09 0508-05
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