Instruction Manual

SETTING UP YOUR ULTRA SPEAKERS

ACOUSTICS (cont’d)

A note about Ultra Tower phase and A/V receiver auto-setup processes.

The Ultra Tower side-ﬁring woofer array is designed to provide a more

accurate in-room bass response than a conventional front-ﬁring tower by

uniformly loading the room, thereby reducing amplitude variations caused by

room modes. Since the woofers are side-ﬁring, the bass at the listening

position is a combination of direct and reﬂected sound waves.

This may result in a phase warning during the A/V receiver auto-setup

process. If a phase warning is encountered, it does not necessarily mean

there is a problem with the Ultra Tower speaker setup.

While moving the Ultra Tower slightly closer or farther away from nearby

wall boundaries may clear the phase warning, doing so is not required to

obtain optimal bass performance, and the phase warning may be safely

disregarded if the loudspeakers are already located in the preferred room

location.

As a matter of good practice, any time a phase warning is encountered, the

polarity of the wiring at the loudspeaker and ampliﬁer should be double-

checked and corrected as needed.

AUTO EQ - START

MIC INPUT