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Related Manuals for PRESONUS BLUETUBE DP
Summary of Contents for PRESONUS BLUETUBE DP
- Page 1 U S E R S M A N U A L 2004, PreSonus Audio Electronics, Incorporated. All rights reserved.
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Page 2: Presonus Limited Warranty
During the warranty period PreSonus shall, at its sole and absolute option, either repair or replace, free of charge, any product that proves to be defective on inspection by PreSonus or its authorized service representative. To obtain warranty service, the purchaser must first call or write PreSonus at the address and telephone number printed below to obtain a Return Authorization Number and instructions of where to return the unit for service. -
Page 3: Controls And Connections
Overview Introduction Features Controls & Connections Front Panel Basic Layout Preamplifier Section Back Panel Basic Layout Operation Dynamic Microphones Phantom Powered Microphones Instrument Input Some Thoughts on Vacuum Tubes Technical Specifications... - Page 4 1 . 1 I N T R O D U C T I O N Thank you for purchasing the PreSonus BLUETUBE DP two channel Dual Path mic/instrument preamplifier. This preamp was designed using state of the art components to deliver crystal clear audio for an infinite period of time.
- Page 5 noise performance and wide dynamic control. This gives the BLUETUBE DP the ability to boost your signal without increasing unwanted background noise. Phantom Power. Each channel of your BLUETUBE DP has 48V phantom power available. When the phantom power switch is engaged on either channel, power is supplied at a constant rate to that channel.
- Page 6 input. Tube Drive. The BLUETUBE DP provides a Tube Drive potentiometer on each channel for controlling the amount of saturation produced by the 12AX7 vacuum tube. Greater levels of tube saturation give the signal greater warmth and a richer sound. This works equally well on mics and instruments.
- Page 7 2 . 1 F R O N T P A N E L B A S I C L A Y O U T The front panel of the BLUETUBE DP has analog VU meters for channel 1 and 2 to the far left and far right respectively, which measure the input level.
- Page 8 Phantom Power is available to each channel input of the BLUETUBE DP. The 48 volts is supplied by way of the XLR connector for condenser mics and any other devices requiring continuous power through the XLR input. This power is supplied at a constant level allowing use of both inputs simultaneously.
- Page 9 signal that you’ ll need. Tube Drive. The BLUETUBE DP Tube Drive control increases the amount of saturation produced by the 12AX7 vacuum tube. The Tube Drive can be turned on or off, and the effect achieved by this procedure can be subtle to extreme, depending on the setting being used.
- Page 10 2 . 3 B A C K P A N E L B A S I C L A Y O U T PIN 1 GND PIN 2 High PIN 3 Low Cable Wiring Diagram for Input and Output XLR Output XLR Connector is servo balanced and operates at +4dBu.
- Page 11 3 . 1 D Y N A M I C M I C R O P H O N E S Dynamic microphones are characterized by lower output levels. Hence, more gain is needed to amplify a dynamic microphone to operating level. Occasionally it is necessary to engage the –20dB pad to the microphone to avoid distortion (e.g.
- Page 12 3 . 4 S O M E T H O U G H T S O N V A C U U M T U B E S The BLUETUBE DP comes supplied with a 12AX7 vacuum tube that meets or exceeds the stated performance criteria for the unit. We expect some owners of the BLUETUBE DP will try different tubes to investigate the various performance possibilities they might provide.
- Page 13 ½ U Rack Dimensions 8” X 5” X 1.75” Chassis Steel Front Panel Brushed Aluminum As a commitment to constant improvement, PreSonus, Inc. reserves the right to change any specification stated herein at any time in the future without notification.