Telos ZephyrExpress user manual See , Audio 75 dB @ 100 Hz -10 dB @ 40 Hz

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—Phantom Power Applies +48vdc in a phantom configuration1.

On

Off Phantom power is automatically turned off when you select Sensitivity: line.

WARNING!

If you apply phantom power to an unbalanced microphone, or to a mic with shorted wiring or cables, you may damage the microphone and ZephyrExpress. DonÕt use phantom power unless youÕre using a condenser microphone that youÕre sure is wired for it.

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—Low Cut Filter Applies a gentle filter2 to reduce wind noise, popped plo- sives, and building rumble. It’s a good idea to leave this on for all voice applications, and turn it off for music transmis- sions.

—Mic 1 test tone Substitutes an 860Hz sine wave for the microphone’s signal, for testing the ISDN connection and setting nominal volumes through the broadcast chain. The tone’s routing and level are adjusted by the front-panel MIC 1 controls.

—Mic 2

—Sensitivity See Mic 1 submenu, above.

— Phantom	Power	"
— Low Cut	Filter	"

—Mic 2 test tone "

—Limiter bypass The limiter is applied to both microphones at once to preserve stereo imaging.

— Line Sens	Both line inputs are switched simultaneously.
	Professional (+4dBu nominal)
	Consumer (-10dBu nominal).

HOT TIP!

The line inputs remain electrically balanced even when Consumer is selected. You can use this to support long cable lengths (with a transformer at the other end), or for phase inversion. For unbalanced wiring details, see Section 5 Hardware.

1See Section 4, Audio.

2-3.75 dB @ 100 Hz; -10 dB @ 40 Hz.

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