User's Manual

Omnia 4.5 Use and Installation Guide – Ver 1.00a
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expansion can be observed on the rightmost vertical bargraph on the Meter Display screen. The system
should be initially auditioned using light amounts of Stereo EXP, with an initial setting of 4 to 6 as a
starting point. The overall stereo soundfield will appear wider and be much more consistent sounding
between program sources. The smart Stereo EXP algorithm turns off when a mono program source is
present. If you find that your mono programming sounds a bit thin, you can add a small amount (2 dB) of
Phat Bass boost to restore warmth to the overall air sound.
Contact Telos Omnia or your Dealer to purchase the access code that activates this feature. You will need
to have your unit serial number (starts with 4700) and MAC address (found on the rear panel barcode
sticker starting with 0050C) and the currently displayed Date. (Visible in the System Menu) Once
presented with this information, Omnia Customer Support will give you a special code to activate this
feature.
Limiters Crossover (XO)
Limiters Crossover (XO)
The audio signal from the Enhance section is split into five bands to drive the multiband limiter section.
The limiter crossovers frequencies are fixed at 120, 480, 1600 and 4800 Hz. Factory drive settings are
initially recommended, but the overall density can be adjusted by changing all 5 drive controls up or down
an equal amount. More drive to the limiters will increase the density of the audio providing a louder but
more squashed sound. Less drive will reduce the density and provide a more open, more dynamic sound.
Reducing the overall limiter drive too much can rob you of loudness. Note also that the upper two limiter
bands (4 and 5) will generally not show as much average gain reduction (little or none at times) as the
lower three bands. This is normal and accounts partially for the improved clarity in the Omnia-4.5fm. You
will notice brief, fast bursts of significant gain reduction on these bands especially on bright dynamic
program material and vocal sibilants.
If you are familiar with the limiter section in the Omnia Classic, you'll remember that significant gain
reduction was necessary in order to achieve extreme loudness. That is NOT the case with Omnia4.5-fm!
The limiters are true limiters, and therefore don't need to do much work after the multiband AGC section to
create a huge signal on the dial. In fact, the most common mistake that our first customers made when
adjusting the Omnia-6fm was overdriving the limiters. A little goes a long way. In fact, it may help to think