Radial Engineering PZ-Pre User Manual page 3

FEATURES AND FUNCTIONS
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1. INPUT-1: ¼" connection for fi rst instrument.
2. PZB-1: recessed switch activates piezo buffer for input-1.
Push in with tweaker to turn buffer on.
3. TOGGLE: footswitch selects between input-1 and input-2.
4. BLEND-MIX: recessed switch selects between toggle mode
and mix/blend mode.
5. INPUT-2: ¼" connection for second instrument.
6. LEVEL-1: gain control for input-1.
7. LEVEL-2: gain control for input 2.
8. NOTCH: used to sweep the frequency of the notch fi lter.
9. HIGH: high frequency shelving EQ. Boosts or cuts treble.
10. MID: amplitude control for semi-parametric mid EQ.
11. FREQ: frequency control for semi-parametric mid 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. OUTPUT: ¼" out for instrument amplifi er.
16. PHASE: (polarity) inverts the signal polarity at the ¼"
instrument output.
17. FOOTSWITCH ASSIGN: sets function of boost footswitch
between power boost, effects loop or both.
18. BOOST: activates power booster and/or effects loop
depending on setting of footswitch assign switch.
19. NOTCH Q: sets the depth of the notch fi lter.
Select between normal, deep and bypass.
20. LO-CUT: high-pass fi lter removes low frequencies to eliminate
resonant feedback. Select between bypass and two low-cut
settings.
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21. PZB-2: recessed switch activates piezo buffer for input-2.
Push in with tweaker to turn buffer on.
22. LOOP SEND & RETURN: The built-in effects loop uses ¼"
jacks to connect effect pedals.
23. PRE-EQ: balanced XLR direct box out taps signal before fi lter,
EQ, effects loop and boost sections. Outputs an un-processed
signal to the "house" PA, or recording console.
24. LIFT: recessed ground lift switch disconnects pin-1 on both
XLR outputs to reduce hum and buzz from ground loops.
25. 180°: recessed switch reverses signal polarity at post-EQ
XLR output.
26. POST-EQ: balanced XLR direct box out taps signal after
fi lter, EQ, loop and boost sections. Outputs a signal to the
monitor system so the player can control their on-stage tone
with the PZ-Pre.
27. TUNER: buffered ¼" output to feed an electronic tuner.
28. 15VDC-400mA: power supply connection 15 volts DC, center
pin positive. Use only with Radial power supply #R800-
9407
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