PreSonus M80 - Manual (Page 6)

1 OVERVIEW
4
1 . 1 I N T R O D U C T I O N
Thank you for purchasing the PreSonus M80 Eight Channel Microphone / Instrument
Preamplifier with Mix Bus. This pre-amp was designed using state of the art components to
deliver crystal clear audio for an infinite period of time. We believe the M80 to be an
exceptional sounding unit and an exceptional value. Feel free to contact us at 1-800-750-0323
anytime for any reason whatsoever. We value your suggestions and your comments. PreSonus
Audio Electronics is committed to constant product improvement and feel the best way to
accomplish this task is by listening to the
experts on our gear, our valued customers. We
appreciate the support you have shown us through the purchase of our products.
Please pay close attention to how you connect your M80 to your system. Improper grounding
is the most common cause of noise problems found in studio or live sound systems. We urge
you to scan this manual before hooking up your M80 to become familiar with its features and
various applications.
Good luck and enjoy your M80!
1 . 2 F E A T U R E S
The following is a summary of your M80’s features:
• Each channel of your M80 contains a Class A discrete input buffer followed by a
twin servo gain stage. This provides ultra low noise and wide gain control. This
allows the M80 user to boost desirable signal without increasing unwanted
background noise (
NO capacitors! )
•
Each channel of the M80 has 48V Phantom power available. When the
Phantom power switch is engaged, power is supplied at a constant rate
whether one or all eight channels are utilized. This assures optimum
performance of your condenser microphone(s) and that it will be free of
distortion associated with insufficient power.
• A phase reverse switch is provided on each channel. This switch enables the
user to invert the phase of a microphone when phase cancellation is noted. The