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Copyright © 2001, PreSonus Audio Electronics, Inc.

ALL RIGHTS RESERVED

DigiTUBE

Single-Channel Tube Mic-Preamplifier

with S/PDIF Output

USER’S MANUAL 1.1

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Summary of Contents for DigiTube

Page 1: ...Copyright 2001 PreSonus Audio Electronics Inc ALL RIGHTS RESERVED DigiTUBE Single Channel Tube Mic Preamplifier with S PDIF Output USER S MANUAL 1 1...

Page 2: ...nel 4 2 1 1 Tube Preamp Section 4 2 1 2 Equalizer Section 6 2 2 Back Panel 9 2 2 1 Digital Section 9 2 2 2 Analog Section 9 2 3 Vacuum Tubes 12 2 3 1 Replacing the Vacuum Tube 10 2 4 Power Supply 12 3...

Page 3: ...g this product PreSonus Audio Electronics Inc is committed to constant product improvement and believes the best way to accomplish this task is by listening to the experts on our gear our valued custo...

Page 4: ...signals or change the XLR input operating level from mic to line Using the 20dB pad provides a more manageable signal from high output devices giving the operator greater control over the incoming sig...

Page 5: ...and a richer sound This feature works equally well on mics and instruments and is just what is needed to tame that brittle sound encountered with different types of digital media Internal Clock An in...

Page 6: ...Neutrik combo connector which provides both an XLR and a 1 4 TS input The XLR connector can accept microphones or by engaging the PAD LINE switch line level signals The 1 4 input is for instrument le...

Page 7: ...to prevent the input signal from over modulat ing distorting This may occur due to a high output level from a microphone Padding the mic input serves to provide increased headroom for the operator an...

Page 8: ...frequency bandwidth is much more broadly defined For example from the fully counter clockwise position of 30Hz to the first mark represents a difference of 10Hz 15Hz whereas from fully clockwise or 1...

Page 9: ...outer ring of the controller 80Hz Switch The DigiTUBE equalizer section contains a switch labeled 80Hz Engaging this switch activates an 80Hz filter often referred to as a rumble filter This filter is...

Page 10: ...15 18 24 OUTPUT LEVEL dBu Metering The DigiTUBE has a 16 step LED meter to observe output level The meter begins at 42dbu and goes to 24dbu clip A red LED is also provided on the front panel to indic...

Page 11: ...d In The USA by PreSonus Audio Electronics Inc S PDIF Insert Balanced Output Sleeve GND Ring Input Tip Output POWER 18 VAC Sync Clock 48 44 1 ext int Ext Clock Input 2 2 BACK PANEL The back panel of t...

Page 12: ...o the corresponding holes in the receptacle Caution should also be taken to not break the circuitboard 5 Replace the top of the DigiTUBE 6 Restore power to the unit and resume operation Remember tube...

Page 13: ...CONTROLS OPERATION 2 11...

Page 14: ...Impedance High Z 1 4 1Meg Ohms Output Output Impedance XLR Balanced 51 Ohms Output Impedance 1 4 TRS Insert Tip Out Ring In Sleeve GND Digital S PDIF RCA Connector Front Panel Controls Tube Drive 0dB...

Page 15: ...hysical Weight 8lbs Size U Rack Dimensions 8 X 5 X 1 75 Mounting Universal Rack Tray Insert Chassis Steel Front Panel Brushed Aluminum As a commitment to constant improvement PreSonus reserves the rig...

Page 16: ...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 defects in material...

Page 17: ...y in the country where purchased or to the PreSonus factory in the U S in the original packaging or a replacement supplied by PreSonus with all transportation cost and full insurance paid each way by...

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