3
FEATURES
8 ohms nominal impedance
Compatible with 70V and 100V constant voltage speaker systems
Built-in step-down transformer with 4 (100V) or 5 (70V) taps
Preinstalled back can for superior audio quality
PACKAGE CONTENTS
Please take an inventory of the package contents to ensure you have all the items listed
below.
1x Coaxial in-ceiling speaker
1x Grille removal tool
1x Cutout template
1x User's manual
CONSTANT VOLTAGE VS 8-OHM SPEAKER SYSTEMS
A constant voltage speaker system differs from a traditional 8-ohm speaker system in that
it uses a step-up transformer at the audio source to raise the voltage and lower the current
on the transmission line. At the speaker end, a step-down transformer converts the signal
back to a normal speaker level voltage. This reduces power loss during transmission, which
allows for the use of longer speaker wire runs using smaller gauge wire.
Additionally, a constant voltage speaker system allows for the use of multiple speakers on
each channel, without the need for complicated impedance calculations and
configurations. In a constant voltage system, all speakers on a given channel are connected
in parallel and the complicated impedance calculations are replaced by simple wattage
calculations.
For example, if you want to connect two speakers per channel in a traditional 8-ohm
speaker system, you must either connect them in series, which results in an overall 16-ohm
impedance, or in parallel, which results in an overall 4-ohm impedance. In the first case, the
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