Telos ZephyrExpress - Manual (Page 64)

4-2 AUDIO OPERATIONS
A console at your fingertips...
ZephyrExpress includes three separate 4-input stereo mixers, designed to make remote
broadcasting easier. They incorporate both digital and analog technology, giving you
the best of both worlds.
We used sophisticated analog circuits for:
¥ Wide input range
¥ Smooth limiting, with the ability to handle sudden peaks without digital artifacts
¥ Uncompromised audio specs
¥ Field-worthy reliability
But we control these circuits digitally, for:
¥ Versatility
¥ Fast, repeatable setups
¥ The ability to store presets for different sites
¥ The ability to lock critical settings against accidental tampering
Audio quality matches the highest standards:
¥ Frequency response +0, -0.1dB between 20Hz - 20kHz
¥ Total harmonic distortion < 0.019% @ 10dB, 20Hz - 20kHz
¥ Dynamic range of +94dB, 20Hz - 20kHz
Mix flexibility
ZephyrExpress’ SEND mixer can control two microphones — each with switchable
sensitivity, limiting, and low-cut filters — and either two mono or one stereo line-level
devices. The line inputs accommodate professional or consumer-level sources, balanced
or unbalanced, on XLR or 1/4" plugs. The microphone inputs can be switched to use as
one or two additional balanced line-level inputs, or to use as test oscillators. All of the
inputs have flexible routing and muting switches.
ZephyrExpress has two separate MONITOR mixers, for ultimate flexibility when setting up
remote broadcasts. You can send local mics down the ISDN line, while mixing them
with high-quality music received over ISDN for a house PA system... at the same time
monitoring distant studio cues along with the rest of the mix in a producer’s
headphones. You can even carry a mic out into the audience, while all this is going on,
and control its mono feed to the local PA system without affecting the ISDN
transmission.
Each monitor mixer has routing, pan, and level controls for the two send channels and
for the two receive channels. Stereo panning can be set to switch automatically
depending on how a signal is routed. One monitor mixer features XLR balanced outputs