PreSonus Inspire 1394 - Manual (Page 31)

TECHNICAL INFORMATION
31
6.1 GLOSSARY
1/4” - This is the type of connector commonly used for instrument cables. The jack itself has a ¼”
diameter. There are two types of these connectors: TRS (Tip Ring
Sleeve) Balanced and TS (Tip Sleeve) unbalanced. Cables using TRS
connectors feature hum and noise cancellation properties, whereas TS
connectors do not. Cables with TS connectors are primarily used with unbalanced instruments
(guitar, bass, etc), and TRS connectors are used with balanced devices (speakers, dynamics
processors, etc). There are two ¼” unbalanced connectors on the front panel of your INSPIRE
1394.
1/8” / 3.5mm – This is the type of connector commonly used for connecting headphones or
speakers. Like 1/4” connectors, these connectors can be TRS or TS. The
TRS type should be used to connect headphones or speakers to your
INSPIRE 1394 (exactly like picture shown), in order to provide a stereo
signal. Note that despite the common name for this connector, the actual
size is 3.5mm.
48V (Phantom Power)- 48 Volt Phantom Power is a source of power required for some
microphones (typically Condenser Microphones). This power is sent through an XLR cable to the
microphone, and is used to electrify the capsule of the microphone, creating a current that can then
be interrupted by small changes in the air created by sound waves.
Make sure your XLR cable is connected at both ends before engaging Phantom
Power, and that you disengage Phantom Power before disconnecting your
microphone. We recommend that you check your microphone’s documentation
for specific instructions regarding Phantom Power, as applying Phantom
Power can cause damage to some microphones, such as ribbon microphones.