Pendulum Audio HZ-10SE Operating Manual Download Page 4

parametric equalizer with signal sources other than the preamp module. It can also be used as the
input for a wireless receiver.

DUAL FOOT SWITCH

• 

The foot switch jack accepts the stereo plug from the foot switch.  Closing either the tip or the ring to

ground causes the Instrument ON or Stereo Effects loop to be activated, illuminating the 'on'  LEDs
on the front panel and the foot switch.

OUTPUTS (L AND R)

• 

The TRS output jacks  allows the HZ-10 to interface with unbalanced and balanced line systems. The

outputs are muted for 5 seconds when the power is turned on to minimize turn-on transients.

EFFECTS SEND

• SEND OUTPUTS

:   The two effects send jacks supply a post-equalizer signal to drive the input of

the effects units or an instrument tuner. The outputs are muted for a few seconds when the unit is first
turned  on.

• 

SEND LEVEL

:   The send level adjusts the output to the requirements of the effects being used:

 

Full level for +4 dbu professional inputs

 

Half way for -10 dbV semi-pro equipment

               < Half-way for instrument-level effects.

STEREO EFFECTS RETURNS

• 

RETURN  INPUTS (L AND R)

:   The two return inputs accept the stereo output signals from the

effect unit. The inputs accommodate both low and high level signals.

• 

MIX 

/

REPLACE

:   The mix/replace mode switch sets up the return inputs for the type of stereo

effects  used:

The 

MIX

 mode is  for effects that are      

blended

      with the  unprocessed  ('dry') guitar sound (e.g. reverb,

delay).

The 

REPLACE

 mode is for effects that are meant to r     

eplace

      the 'dry' sound (e.g.compressor/limiter),

or  effects that have their own 'mix' feature that blends  the effect with the dry sound     inside

      the effect

unit  (e.g. a multi-effects processor).

Introduction

The HZ-10SE is the first professional-quality preamp system designed specifically for acoustic

instrument pickups.  It consists of a 'front-end' instrument preamp (Preamp Module), a rack mountable Main

Summary of Contents for HZ-10SE

Page 1: ...HZ 10SE Preamp System For Acoustic Instruments Stereo Effects OPERATING MANUAL Serial No Pendulum Audio Inc P O Box 339 Gillette NJ 07933 908 665 9333...

Page 2: ...put control sets the operating level within the Main Preamp Unit Set the Input control so the signal level stays between the limits set by the Signal and Peak LEDs The unity gain setting is 12 00 SIGN...

Page 3: ...b of gain to interface with all types of effects The unity gain position is 11 00 EFFECTS ON The inputs are activated when an effect is plugged into either return input on the rear panel or switched o...

Page 4: ...The send level adjusts the output to the requirements of the effects being used Full level for 4 dbu professional inputs Half way for 10 dbV semi pro equipment Half way for instrument level effects S...

Page 5: ...netic pickups were convenient for live performance so acoustic players put up with these limitations Often these limitations forced performers to go back to using stand mounted microphones and putting...

Page 6: ...le or dual pickup are designed for extremely low noise operation have a balanced line output and an easy to reach level control Main Preamp Unit Once the pickup or mini mic output is in a more managea...

Page 7: ...t the male XLR connector end of the cable to the phantom powered input labeled Preamp Module on the rear panel of the main unit CAUTION This input should be used only for the preamp module or other so...

Page 8: ...st level you ll be playing and slowly turn up the gain control on the Preamp Module At a certain point the red peak LED on the front panel near the input control may begin to flash This indicates the...

Page 9: ...the Peak Indicator Rather than sensing only input overload as is usually the case the HZ 10SE s peak detection circuitry warns of levels near clipping at a number of key places in the signal path the...

Page 10: ...to access other frequencies nearby Also note that the LO band is capable of a narrower bandwidth larger Q than the others this is important for using the LO band to notch out hum or to deal with the...

Page 11: ...few hints on how to use each of the four bands you have available to handle them Lack of Warmth Too Much Boominess Tuning the LO band to the instrument s body resonance typically in the range of 70 14...

Page 12: ...nstallation is very important As you re probably aware the sound you get from your transducer is very sensitive to where it s positioned stick on pickups or how it couples to the bridge under the sadd...

Page 13: ...transducer e g Miller Stephenson RFI Conductive coating MS 485 or equivalent available at your local electronic supplier Caution don t try this unless you re willing to suffer the consequences if som...

Page 14: ...the two Returns will light indicating the input is active If the foot switch is connected the input is activated by turning on the Effects foot switch with the instrument ON switch also activated Set...

Page 15: ...a splitter box Dual Foot Switch Instrument ON Effects The HZ 10SE s dual foot switch is used to turn your instrument on and activate the stereo effects loop from your playing position It s connected b...

Page 16: ...TE Piezo pickups require a preamp before the wireless transmitter input The pickup output is usually too low to drive the transmitter properly which increases the noise level Also the impedance mismat...

Page 17: ...us SYMPTOM POSSIBLE CAUSE S Power LED not lit with power Power supply malfunction or switch on and unit plugged into internal fuse blown consult authorized an active receptacle service department Sign...

Page 18: ...Bu Maximum Output 21 dBu unbalanced 27 dBu balanced Outputs L R Outputs 1 4 phone jack TRS balanced XLR optional Effects Sends 1 4 phone jack unbalanced Metering Signal green LED 20 dBu Peak red LED 1...

Page 19: ...in such a manner as to injure in Pendulum s sole judgment the performance stability or reliability of the unit The warranty does not apply if the unit is connected installed or used otherwise than in...

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