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User’s Manual

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Summary of Contents for VXP -

Page 1: ...User s Manual...

Page 2: ...E P R E A M P L I F I E R S M A R T C O M P R E S S O R D E E S S E R E X P A N D E R S E M I P A R A M E T R I C E Q U A L I Z E R USER SMANUAL Version1 0 1999 PreSonus Audio Electronics Incorporate...

Page 3: ...e This warranty does not cover claims for damage due to abuse neglect alteration or attempted repair by unauthorized personnel and is limited to failures arising during normal use that are due to defe...

Page 4: ...4 1999 PreSonus Audio Electronics Incorporated All rights reserved...

Page 5: ...3 Smart Compressor 15 2 4 Expander 16 2 5 De Esser 17 2 6 Equalizer 17 2 7 Master Section 19 2 8 Back Panel Wire Diagrams 20 2 9 Power Supply 20 3 Operation 3 1 Dynamic Microphones 22 3 2 Phantom Pow...

Page 6: ...0 0323 with any questions or comments you may have regarding your PreSonus equipment We value your suggestions highly PreSonus Audio Electronics is committed to constant product improvement We believe...

Page 7: ...VXP has 48V Phantom power available This assures optimum performance of your condenser microphones that require Phantom power and that the power supplied will be free of noise or distortion Pad A 20d...

Page 8: ...microphonic LED Meter LED metering provides an accurate reading of the input level and a fast reference of presence of signal v Smart Compressor with Pre Sets The VXP is equipped with a Smart Compres...

Page 9: ...w much gain is reduced to eliminate the sibilance v 4 Band Semi Parametric Equalizer Total tonal control is what the Equalizer section provides Low and High Shelving coupled with Low Mid and High Mid...

Page 10: ...the frequency point by a factor of 0 5 to as narrow as 2 for pinpoint adjustment of important mid band frequencies that are the most prevalent frequency in the normal audible range High Shelving A ro...

Page 11: ...ompensating for gain loss due to compression or to decrease output signal that boosting frequencies with the Equalizer section may have caused The output is variable from 70 dB to 10 dB Power A BIG RE...

Page 12: ...O N T P A N E L B A S I C L A Y O U T Notice that the front panel of the VXP is divided into six sections section one is the Mic Preamp The Mic Preamp section contains Gain Control IDSS Control 48 Vol...

Page 13: ...CONTROLS CONNECTIONS 11 Compressor Section contains Pre Set Selector Level Control Process In Out Switch Gain Reduction Meter...

Page 14: ...CONTROLS CONNECTIONS 12 Expander Section Threshold Control Outer Ring Ratio Control Inner Knob LED Expansion Meter De Esser Section Threshold Outer Ring...

Page 15: ...CONTROLS CONNECTIONS 13 Frequency Inner Knob Gain Reduction Meter...

Page 16: ...Shelving Control Low Mid Q Select Switch Low Mid Level Outer Ring Low Mid Frequency Select Inner Knob 80 Hz Filter Switch EQ In Out Switch High Mid Range Level Control Outer Ring High Mid Range Freque...

Page 17: ...g amplified by the VXP The effect of manipulating the harmonic distortion is of increasing or decreasing the apparent warmth of the signal This feature is derived from manipulating the drain current o...

Page 18: ...input serves to provide increased headroom for the operator while lessening the likelihood of an input signal overload 2 3 C O M P R E S S O R CONTROL The knob labeled Control selects one of the 16 fa...

Page 19: ...television HEAVY The group of six presets found in this section range from 2 5 1 up to 8 1 These settings provide the greatest control over signal transient content The range within the performance i...

Page 20: ...h The resulting decrease in signal would be down to 30dB if the VXP Expander s Threshold had been set to 10 dB The VXP s Expander is designed to operate below the selected Threshold at the amount dete...

Page 21: ...CONTROLS CONNECTIONS 19...

Page 22: ...rols those frequencies in the lower mid portion of the frequency spectrum The controls provide for continuous sweep from 90Hz to 700Hz The outer concentric knob adjusts the desired frequency up to 12d...

Page 23: ...gh Mid Range control is variable from 450 Hz to 5 8 kHz The inner concentric knob adjusts the frequency setting while the outer ring can boost the selected frequency 12 dB or cuts the frequency select...

Page 24: ...iter is extremely useful for preventing overloading which is especially vexing when encountered while recording with digital recording media LEVEL This control adjusts the output level of the VXP It f...

Page 25: ...k on the back panel of the VXP routes the signal being processed by the unit to an outboard device such as a reverb or delay or to recording media 2 7 P O W E R S U P P L Y The Power Jack on your VXP...

Page 26: ...ssary when close mic ing to avoid clipping the amplifier 3 3 I N S E R T I N G R E V E R B S O R D E L A Y U N I T S E T C The VXP features a send jack and a return jack This feature allows the use of...

Page 27: ...A to D converters are made by Crystal Semiconductor for superior performance Psycho acoustic dithering is provided to improve BIT resolution characteristics which may become noisy when conversion fro...

Page 28: ...e Full IDSS 0 500 Input Connector XLR Input Impedance 1 3K Ohms Send Connector 1 4 TRS Balanced Unbalanced Send Output Impedance 51 Ohms Return Connector 1 4 TRS Balanced Unbalanced Return Input Imped...

Page 29: ...equency Range 800Hz to 8kHz Metering 4 LED Gain Reduction Equalizer Rumble Filter Cutoff Frequency 80Hz Low Shelving 12dB 100Hz Low Mid Range 12dB 90Hz to 700Hz Switchable Q 0 5 2 0 High Mid Range 12d...

Page 30: ...24dBu Physical Power Supply Internally Regulated Linear Type Power Requirements 100VAC to 120VAC200VAC to 240 VAC Size 1U Rack 19 x 1 75 x 7 Weight 8 pounds As a commitment to constant improvement Pr...

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