User Guide

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.
TREBLE
A boost here will help to “cut through the mix”. Conversely, cutting the TREBLE
will mellow and subdue your amplified
tone.
BRILLIANCE
When boosted, the BRILLIANCE control can add presence to your sound or
brighten up dead strings.
Suggested EQ Settings
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. You can also cut
midrange 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.
Cut Through
For cutting through a live band mix at
high volumes.
Specifications
Nominal Input Level: -20dBV
Input Overload: (20Hz - 20kHz) -2dBV
Input Impedance: 20MOhm
Output Impedance: Less than 3.5kOhm
Nominal Output Level: -12dBV
THD: Less than .04 %, -20dBV input
Signal to Noise Ratio: 82dB
(A-weighted referred to nominal -20dBV input)
Battery Life:
Preamp only, tuner off: 160hrs. @ 3.8mA
Tuner on, no signal: 71hrs. @ 7mA
Tuner on, with signal: 25hrs. @ 20mA
Power Supply: 9V Alkaline battery
(estimated 160 hours continuous use with low
battery indicator at 6.5V)
Notch Filter Range: 30Hz – 300Hz (-15dB)
Bass Control Range: ± 12dB at 60Hz
Treble Control Range: ± 12dB at 10kHz
Contour Control Range: ± 12dB
(adjustable from 250Hz to 10kHz) Q = 0.5
Brilliance Control Range: ± 9dB at 10kHz
± 3dB Bandwidth 5kHz
All specifications subject to change without notice.
513-000-002 RevA 11-04
PREFIX™ PLUS-T USER GUIDE CONTINUED
PLUS
-
T
BRILLIANCE
+ 9 dB
-
9 dB
FREQUENCY
250 Hz 10 kHz
TREBLE
+ 12 dB
-
12 dB
CONTOUR
+ 12 dB
OFF 300 Hz
-
12 dB
BASS
+ 12 dB
-
12 dB
PLUS
-
T
BRILLIANCE
+ 9 dB
-
9 dB
FREQUENCY
250 Hz 10 kHz
TREBLE
+ 12 dB
-
12 dB
CONTOUR
+ 12 dB
OFF 300 Hz
-
12 dB
BASS
+ 12 dB
-
12 dB
PLUS
-
T
BRILLIANCE
+ 9 dB
-
9 dB
FREQUENCY
250 Hz 10 kHz
TREBLE
+ 12 dB
-
12 dB
CONTOUR
+ 12 dB
OFF 300 Hz
-
12 dB
BASS
+ 12 dB
-
12 dB
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