PRESONUS TubePre V2 Owner's Manual page 16

3 Connections
3.2 Back-Panel Layout
3.2 Back-Panel Layout
NOTE: An active instrument has an internal preamp and should be
plugged into a line input rather than an instrument input. Plugging
a line-level source into the Instrument input on the TubePre V2
may result in a very loud and distorted audio signal.
12
VU Meter. The analog VU meter displays the output level
of your TubePre V2.
Microphone input. Your TubePre V2 is equipped with a
high-quality PreSonus XMAX™ microphone preamplifier
for use with a wide variety of microphones, including
dynamics, condensers, and ribbons.
Instrument input. The ¼" TS connector in the input
section of the TubePre V2 is for use with a passive
instrument (e.g., guitar or bass).
PreSonus TubePre V2