Справочник Пользователя для Fishman prefix premium blend

Volume Control 
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. 

Notch 
Tune the Notch filter 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. 
NOTE: The Notch control only affects microphone
and pickup signals at the tip output.

Phase Switch
Push the Phase switch in and out until you find the position that sounds best and subdues mid-bass feedback. Mid-
bass feedback generally occurs when you play bass notes above the fourth fret G# on the low E string. 

Bass 
A Boost here will add depth and weight to the sound the instrument.  This control does not affect the microphone! 

Two sliders (Contour and Frequency) make up this EQ. The Frequency slider lets you tune in on the specific range of
sounds that you can boost/cut with the Contour (level) slider. The Contour control affects only the pickup and
microphone signals at the tip output. 

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 benefit from a slight midrange cut. 

To cut mids, boost the Contour control and then sweep the Frequency control until you find the band of frequencies
that are brash and nasal sounding (usually around the center of the Frequency slider's travel). 

Then move the Contour slider below its detent to taste. 

A boost here will help to "cut through the mix". Conversely, cutting the Treble will mellow and subdue your amplified
tone. 

Determines the balance between the pickup and microphone. Move the slider left to emphasize the Microphone. Move
it right to hear more of the Pickup. 

Brilliance
If you are playing through a limited range amplifier (like an
electric guitar amp) or have dead strings on the instrument, you
can brighten up your sound by setting the Frequency slider to
10 kHz and raising the Contour level to taste. If you plan to play
at high stage volume levels, dial in more pickup than
microphone to avoid feedback.

Mid-Cut 
You can scoop out harsh midrange by setting the Frequency
slider slightly above center with the Contour (level) cut to taste
below the center detent.  Often the desired mid-cut will fall into
the same frequency range as potential microphone feedback.
You can also cut midrange (pickup only) by boosting the BASS
and TREBLE sliders to realize an "implied" mid-cut at 800 Hz.

Fingerstyle
This setting will add fullness to the bass and definition to the
treble.

Less than 3.5 k Ohms

Less than 6.6 k Ohms

-12 dBV

Max: -12 dBV Min: -16dBV

Less than .04 %, -20 dBV input

77 dB (A weighted referred to nominal -20 dBV input)

9V alkaline battery

Preamp only, tuner off:  130 hrs. @ 3.8mA

Tuner on, no signal:  33 hrs. @ 15mA, 

Tuner on, with signal: 20 hrs. @ 28mA,.

20Hz - 300 Hz (-15 dB)

±  12 dB at 60 Hz 

±  12 dB at 10 kHz

±  12dB 
(adjustable from 250 Hz to 10 kHz), Q = 0.5

All specifications subject to change without notice.

F

ISHMAN

P

REFIX

™ P

REMIUM

B

LEND

U

SER

G

UIDE

- C

ONTINUED

513-000-001 • 8-8-03

(E to G#)

(A and above)