Fishman prefix plus-t Benutzerhandbuch
Thank you for choosing Fishman. Our goal is to provide you with the fi nest acoustic
amplifi cation products available; products that will compliment your style and let you
sound your very best onstage. Please read these instructions carefully.
amplifi cation products available; products that will compliment your style and let you
sound your very best onstage. Please read these instructions carefully.
Overview
The Prefi x Plus-T preamp offers the tonal variety and feedback-fi ghting
capabilities of Fishman’s deluxe Prefi x Plus onboard preamp system, with the
addition of a high-quality chromatic tuner and a streamlined new look.
capabilities of Fishman’s deluxe Prefi x Plus onboard preamp system, with the
addition of a high-quality chromatic tuner and a streamlined new look.
The preamp module incorporates a unique fl ip-top compartment for easy battery
access. Bass, treble, brilliance & semi-parametric “Contour” EQ let you quickly
dial in your personal tone. For real-world playing conditions, a problem solving
phase switch and notch fi lter help keep acoustic feedback under control. A
convenient low battery indicator rounds out the preamp features.
access. Bass, treble, brilliance & semi-parametric “Contour” EQ let you quickly
dial in your personal tone. For real-world playing conditions, a problem solving
phase switch and notch fi lter help keep acoustic feedback under control. A
convenient low battery indicator rounds out the preamp features.
The Fishman Acoustic Matrix™ pickup used in the Prefi x Plus-T is regarded as
the industry-standard acoustic transducer. A unique proprietary co-polymer
sensing material is the secret to the Acoustic Matrix’ excellent sensitivity and
dynamic range. The transducer is fully EMI shielded and is comprised of a
multi-layer sandwich of co-polymer strips that run the length of the pickup. The
continuous length design allows the pickup to sense the motion of the entire
saddle length, for superb string to string balance and sensitivity to both the
strings and soundboard.
the industry-standard acoustic transducer. A unique proprietary co-polymer
sensing material is the secret to the Acoustic Matrix’ excellent sensitivity and
dynamic range. The transducer is fully EMI shielded and is comprised of a
multi-layer sandwich of co-polymer strips that run the length of the pickup. The
continuous length design allows the pickup to sense the motion of the entire
saddle length, for superb string to string balance and sensitivity to both the
strings and soundboard.
Plug and Play!
Plug a standard 1/4 inch instrument cable between the endpin jack and a stage
amp, a direct box or an unbalanced input on a mixer. When you plug in, the
Prefi x Plus-T switches on. To conserve the battery, unplug the instrument when
you fi nish playing.
amp, a direct box or an unbalanced input on a mixer. When you plug in, the
Prefi x Plus-T switches on. To conserve the battery, unplug the instrument when
you fi nish playing.
Note: Turn down the volume on the amp or mixer before you plug in, to protect
your speakers (and your ears) from loud pops.
your speakers (and your ears) from loud pops.
Setup
Battery Compartment
Pull the small tab at the top of the Prefi x Plus-T toward you. The body of the
preamp will swing out, revealing the battery compartment. Observe the polarity
marks on the battery compartment and install a fresh 9V alkaline battery
accordingly.
Pull the small tab at the top of the Prefi x Plus-T toward you. The body of the
preamp will swing out, revealing the battery compartment. Observe the polarity
marks on the battery compartment and install a fresh 9V alkaline battery
accordingly.
BATTERY Indicator
Plug into the endpin jack and the BATTERY indicator will fl ash momentarily,
indicating the power is on. When the BATTERY indicator stays on, it is time to
change the battery.
Plug into the endpin jack and the BATTERY indicator will fl ash momentarily,
indicating the power is on. When the BATTERY indicator stays on, it is time to
change the battery.
Controls
TUNER
Depress the TUNER button to turn the circuit on and off. This digital chromatic
tuner accommodates all standard and alternate tunings. For your convenience,
the tuner button also acts as a mute switch. The tuner circuit devours battery
power, so turn it off when you fi nish tuning.
Depress the TUNER button to turn the circuit on and off. This digital chromatic
tuner accommodates all standard and alternate tunings. For your convenience,
the tuner button also acts as a mute switch. The tuner circuit devours battery
power, so turn it off when you fi nish tuning.
You can also turn on the tuner if the guitar is unplugged. It will automatically shut
down after about 30 seconds at idle to conserve battery power. The “in tune”
indicator will fl ash several times before the tuner shuts down. Note that the tuner
is calibrated to A = 440.
down after about 30 seconds at idle to conserve battery power. The “in tune”
indicator will fl ash several times before the tuner shuts down. Note that the tuner
is calibrated to A = 440.
VOLUME
Set this as high as possible (without causing your amp or mixer to distort) for
the cleanest signal.
Set this as high as possible (without causing your amp or mixer to distort) for
the cleanest signal.
NOTCH and PHASE
These controls work hand in hand to suppress two adjacent ranges of acoustic
feedback. When you set them properly, you can play your instrument as loud as
you like, feedback free.
feedback. When you set them properly, you can play your instrument as loud as
you like, feedback free.
Tune the NOTCH fi lter to scoop out the lowest range of feedback when you play
bass notes between the open low E string and (up to and including) the fourth
fret G sharp on the same string. Low frequency “cavity resonance” feedback
can usually be squelched by setting the NOTCH control between one o’clock and
two o’clock on the dial. Note that the NOTCH can be defeated by moving the dial
to the OFF (seven o’clock) position.
bass notes between the open low E string and (up to and including) the fourth
fret G sharp on the same string. Low frequency “cavity resonance” feedback
can usually be squelched by setting the NOTCH control between one o’clock and
two o’clock on the dial. Note that the NOTCH can be defeated by moving the dial
to the OFF (seven o’clock) position.
Push the PHASE switch in and out until you fi nd the position that sounds best
and subdues mid-bass feedback. Midbass feedback generally occurs when you
play bass notes above the fourth fret G sharp on the low E string.
and subdues mid-bass feedback. Midbass feedback generally occurs when you
play bass notes above the fourth fret G sharp on the low E string.
BASS
A boost here will add depth and weight to the sound the instrument.
A boost here will add depth and weight to the sound the instrument.
CONTOUR EQ
Two sliders (CONTOUR and FREQUENCY) make up this EQ. The FREQUENCY
slider lets you tune in on the specifi c range of sounds that you can boost/cut
with the CONTOUR (level) slider. With the Contour EQ you can boost or cut a
wide range of frequencies, from gutsy low midrange (250 Hz) to brilliant, high
treble (10 kHz). Often your instrument will benefi t from a slight midrange cut.
Two sliders (CONTOUR and FREQUENCY) make up this EQ. The FREQUENCY
slider lets you tune in on the specifi c range of sounds that you can boost/cut
with the CONTOUR (level) slider. With the Contour EQ you can boost or cut a
wide range of frequencies, from gutsy low midrange (250 Hz) to brilliant, high
treble (10 kHz). Often your instrument will benefi t from a slight midrange cut.
P
REFIX
™ P
LUS
-T U
SER
G
UIDE
AB
C
D
E
F
G
D
E
F
G
#
Flashes when the note is below pitch
Lights up when note is in tune
Lights up when the note is raised 1/2 step
Flashes when the note is above pitch
Lower
Feedback Range
(E to G#)
Upper
Feedback Range
(A and above)
PHASE
NOTCH
OFF
300 Hz
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