PRESONUS TUBEPRE User Manual

TubePRE
Single-Channel Tube Mic-Preamplifier w/ VU Meter
User's Manual
VERSION 1.0

PRESONUS TUBEPRE Specifications

General

Type	Microphone Preamplifier
Tube Type	12AX7
Frequency Response	10Hz - 50kHz
Phantom Power	48V
Inputs	XLR, 1/4"
Outputs	XLR, 1/4"
Power Supply	External power supply (included)

Summary

Presonus Limited Warranty

Limited Warranty Outside of The U.S.

Controls & Connections

Front Panel

Details the features and layout of the TubePRE's front panel controls.

Preamplifier Section

Explains the phantom power supply for condenser mics and other devices via the XLR input.

Back Panel

Details the input/output connectors and XLR wiring for the back panel of the TubePRE.

Operation

Replacing the Tube

FAQ/Troubleshooting

Can I switch the tube?

Confirms 12AX7 tube compatibility and advises caution during replacement.

Power Supply Voltage

Addresses voltage discrepancies on the unit and power supply, recommending authorized parts.

Tube Compatibility

States only 12AX7 tubes are compatible; other variations may cause damage and void warranty.

Technical Specifications

Performance

Details technical performance metrics including bandwidth, THD+N, noise floor, and signal-to-noise ratio.

Input & Output

Specifies input/output connectors, impedances, and balanced/unbalanced configurations.

Panel Controls

Lists the ranges for Tube Drive, Gain, Phase Reversal, -20dB Pad, and +48V Phantom Power.