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True to the Music

Radial Engineering Ltd.

PZ-Pre

 User Guide

Input-1

PZB 1 Blend-

Mix

Input-2

PZB 2

4

Input-1 and 2

The PZ-Pre features two ¼” inputs located on the right side panel. 

The fl exible dual input design lets a player connect and switch 

between instruments simply by stomping on the TOGGLE

 

footswitch. 

Most performers, whether they play acoustic guitar or mandolin, tend 

to have two instruments on stage. The second instrument is often 

for backup should a string break; in some cases, it may be tuned 

differently, or it may even be a completely different instrument! The 

PZ-Pre is equipped to be a control center for two instruments. 

Input-1

Input-2

Level-1

Level-2

Mute

Toggle

Footswitch

Tuner 

Out

LEVEL-1 and 2

Both inputs are equipped with LEVEL 

controls that let you adjust the volume 

of each instrument. These controls 

are used to compensate for the 

differences in output level some 

pickups produce. Once adjusted, 

you can seamlessly switch between 

instruments. 

PZB-1 and 2 Piezo Pickup Buffers

Each PZ-Pre input features a special piezoelectric pickup (piezo) 

buffer called the PZB that can be switched into the signal path 

when needed. The PZB allows a passive piezo pickup to be 

connected directly to the PZ-Pre without the use of a separate 

preamp. The PZB increases the gain while elevating the input 

impedance to 10meg Ohms. This ensures that the piezo pickup 

'sees' the optimum input impedance for signal transfer which will 

result in better tone. To 

activate the PZB, use 

a small screwdriver to 

push in the recessed 

switch. There is a 

separate PZB switch 

for each input channel.

INPUT SECTION

Summary of Contents for PZ-Pre

Page 1: ...Radial Engineering Ltd 1588 Kebet Way Port Coquitlam BC V3C 5M5 Tel 604 942 1001 Fax 604 942 1010 email info radialeng com www tonebone com PZ Pre Acoustic Instrument Preamp User Guide...

Page 2: ...the type of durability you would expect for concert stage use If after read ing this manual you have a question please visit the FAQ in the PZ Pre section of our web site This is where we post the lat...

Page 3: ...als and an over driven guitar amp on stage to create various sonic textures while a bouzouki player may have his vintage Fender Twin Their is an output for your electronic tuner and the mute footswitc...

Page 4: ...id EQ 12 LOW Low frequency shelving EQ boosts or cuts bass 13 BOOST Variable level control for the power booster 14 MUTE Footswitch mutes all outputs except tuner out 15 LOOP ON Forces the effects loo...

Page 5: ...the house PAor recording console 25 LIFT recessed ground lift switch disconnects pin 1 on both XLR outputs to reduce hum and buzz caused by ground loops 26 180 recessed switch reverses the polarity a...

Page 6: ...EL 1 and 2 Both inputs are equipped with LEVEL controls that let you adjust the volume of each instrument These controls are used to compensate for the differences in output level some pickups produce...

Page 7: ...ed with instruments that have two pickup elements or two different pickup systems It allows you to blend the two input channels using the LEVEL controls to set up a mix For instance you can use the MI...

Page 8: ...pass filter is designed to eliminate low frequency resonant feedback Selecting either the 80Hz or 200Hz positions will roll off low frequencies preventing uncontrolled run away resonant feedback The...

Page 9: ...cked in to create dynamic solos or avant garde textures The power boost and effects loop may be activated together or separately depending on the position of the FOOTSWITCH ASSIGN switch Boost When th...

Page 10: ...ctive direct box It produces a 600 Ohm mic level signal suitable for connecting to mixing consoles The POST EQ XLR OUT comes at the end of the PZ Pre signal path after the filters equalizer PHASE BOOS...

Page 11: ...y to the PZ Pre with an instrument cable PZB not required Piezo Transducers Passive Piezo transducer pickups can be permanently mounted inside an instrument embedded in the bridge or attached to the s...

Page 12: ...ce a signal that can connect to the PZ Pre without the need to engage the PZB The instrument s on board preamp will buffer the signal and the output can connect directly to the PZ Pre with an instrume...

Page 13: ...EQ and Effects XLR Dry Direct Box Output This balanced mic level XLR output is designed to go into the PA system It is dry and unprocessed so that the FOH engineer can treat this signal to optimize t...

Page 14: ...ROLS Before you head off to your first gig with the PZ Pre it is a good idea to familiarize yourself with the controls in your practice room and investigate the various functions Do this at a low volu...

Page 15: ...system The Pre EQ output will give the house engineer a full range signal to mix with while the PZ Pre EQ controls can be adjusted to suit you However in any case be careful not to over EQ your tone...

Page 16: ...and a low frequency run away resonance The feedback from a specific note we will deal with later using the notch filter For now we will focus on removing the runaway low resonance with the LO CUT fil...

Page 17: ...er is that the prob lem frequency will likely change each time you play in a different venue or change instruments So experiment and get familiar with the NOTCH filter functions This will make sound c...

Page 18: ...that connect to the effect pedal using standard coaxial cables Using the Loop With The Boost Footswitch The three position FOOTSWITCH ASSIGN switch links the ef fects loop to the BOOST footswitch The...

Page 19: ...2dB 82Hz 5 6kHz Power Boost Unity gain to 12dB max Effects Loop Phone unbalanced Send 1k Ohm Return 15k Ohm Switching FET Switching Output instrument Phone unbalanced 1k Ohm output impedance Tuner out...

Page 20: ...date of purchase and the dealer name must accompany any request for work to be performed under this limited and transferable warranty This warranty shall not apply if the product has been damaged due...

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