User guide

PZ-Deluxe™
True to the Music
®
Radial Engineering Ltd.
OVERVIEW
The Radial PZ-Deluxe is an instrument Preamp. It has been optimized to deliver the pure
sound of your instrument no matter what kind of pickup you have. And just like a high quality
mic preamplifi er, it is designed to do so without introducing noise or artefact.
SWITCHABLE
PZB
HIGH IMPEDANCE
PIEZO BUFFER
¼” INSTRUMENT
INPUT
LOW-CUT
FILTER
SEMI-
PARAMETERIC
EQ
BOOST
FOOTSWITCH
AND BOOST
LEVEL CONTROL
¼” HIGH
IMPEDANCE
OUTPUT
XLR LOW
IMPEDANCE
DIRECT BOX
OUTPUT
¼” TUNER
OUTPUT
Following the block diagram, you can see how the signal fl ows from the input all the way to
the outputs. The signal enters the PZ-Deluxe using a standard ¼” instrument input connec-
tor. A special PZB circuit may be switched in that is designed specifi cally for piezo electric
transducers. When engaged, this recessed switch increases the input sensitivity and subse-
quent gain and elevates the impedance to 10 meg-ohms. This helps warm up the tone of a
piezo and smooths out the peaks that are often problematic. When using the PZ-Deluxe with
a magnetic pickup or an acoustic instrument with a built-in battery powered preamp (active)
the PZB is generally not used.
The signal then goes to the EQ section where it can be tailored to suit. This 3-band semi-
parametric EQ is equipped with separate bass, mid and high frequency controls. These are
very powerful - so use sparingly for best results. The mid is also equipped with a variable
frequency control. This enables you to fi nd an offending frequency and dial it out. This is par-
ticularly effective at reducing feedback when playing on loud stages. There is also a 3-position
low-cut switch that is very helpful at eliminating resonance, another major cause of feedback.
The PZ-Deluxe is equipped with several outputs: the on-stage guitar amp out lets you set up
your own personal monitoring system on stage; the tuner out is used for quiet on-stage tuning;
and an XLR balanced direct box out is used to feed the instrument signal to the PA system.
1
MUTE
BOOST
TUNER
OUTPUT
BOOST
INPUT
LO-CUT180º180º
LOW-Z DI OUT
FILTERAMP
LIFT
LOW-Z DI OUT
15VDC ·
400mA
®®
HIGH
LEVEL
LOW
FREQ
MID
PZB
+
PA SYSTEMSTAGE AMP
TUNER
Typical Setup