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Overview: The Russound PRO series speaker selector (PRO-8HP)
is a high efficient dual-source impedance-matching selector. This high-quality
speaker selector is designed for use with either 4-ohm or 8-ohm amplifiers and
4-ohm or 8-ohm speakers. The PRO series speaker selector is equipped with a
low-frequency protection circuit to reduce subsonic signals which allows high
power operation without amplifier shutdown. The PRO series unit also employs
audiophile-grade impedance matching autoformers to maintain a safe operating
load at the amplifier while distributing maximum power through the system.
Autoformers are very efficient because of the small loss incurred as a result of
heat dissipation. In addition, the PRO series selector is equipped with a black
panel rotary switch , which is used to set the appropriate impedance based on
the number of pairs of speakers connected. This switch selects the proper taps
of the autoformers, allowing all the amplifier's power to be delivered to your
speakers. The PRO series speaker selector can be connected to one or two
amplifiers. A front panel button allows switching between the two amplifiers for
all speakers connected to the unit.
Note: The Russound PRO series dual source speaker
selectors are available in 6-channel, 8-channel and 12-channel.
Dual Source Eight Speaker Selector: The PRO-8HP is a robust, efficient
dual-source speaker selector for up to 8 pairs of speakers. Designed for
demanding applications, this high-quality speaker selector features a
low-frequency protection circuit to reduce subsonic signals. This allows higher
power operation without amplifier shutdown.
Two Amplifier Connection: An A/B switch on the front panel allows you
to power all your speakers with either of two source amplifiers. The PRO-8HP is
designed for use with amplifiers up to 100 Watts per channel RMS continuous and
300 watts per channel peak. The PRO-8HP is also designed for use with either 4-
or 8-ohm speakers.
Note: Only one of the two amplifiers connected to the PRO-8HP can
be activate; they cannot be both on simultaneously.
Audiophile-Grade Autoformers: The PRO-8HP uses audiophile-grade
autoformers for impedance matching to maintain a safe operating load at the
amplifier while distributing maximum power throughout your system.
Impedance Switch: A rotary switch on the rear panel sets the
appropriate impedance for your amplifier, based on the number of speaker pairs
Speaker Selection: The PRO-8HP features eight buttons on the front panel
that allows you to select which speakers are playing (1-8) so you can control
speakers in several rooms of your home from one central location. Printed room labels are
included so you can label the front-panel of your PRO-8HP.
Connections: The PRO series speaker selector has removable modular snap connectors
that provide color-coded wire terminations without the need for set-screws. The
PRO-8HP provides four pair of speaker inputs for connecting two amplifiers and
sixteen pair of speaker outputs for up to eight pair of speakers. Speaker
connections can support multiple speaker pairs wired in parallel or series,
provided their combined impedance is a minimum of 4-ohms. The unit's speaker
connectors will accept up to 14 gauge wire.
Optional External Volume Controls: If external volume controls (sold
separately) are used, connect speaker wire from the appropriate speaker
connector on the PRO series selector to the volume control input and from the
volume control output to your speaker.