8 P/SP-1500 Owner's Manual
Center Channel Speaker Selector
Set this rear panel switch to accommodate the type of center channel speaker you will be using.
Following are descriptions of the preferred center channel switch settings based upon the center speaker
you will be using.
Large or THX (Wide Band)
Switch to the Large or THX position for center channel speakers that have extended low bass capability
and can play as loud as your front left and right speakers without bass distortion. Use this setting for
THX Home Cinema center speakers. In this position, the P/SP-1500 routes the entire audio bandwidth
(20 Hz - 20 kHz) to the center channel output.
Small (Normal)
Switch to the Small position for smaller sized center channel speakers. In this position, the P/SP-1500
protects your center channel speaker from bass overload and distortion by diverting bass frequencies
below 100 Hz to the left and right channels. In this position, front channel imaging remains tonally
balanced even with the limited bass capability of a smaller center channel loudspeaker.
None (Phantom)
Switch to the None position if you do not have a center channel speaker. In this position, the front right
and left speakers share reproduction of the mono center channel signal to create a “phantom” image in
the center. However, without a good quality center channel speaker, you will be missing one of the key
benefits of Dolby Pro Logic and THX Cinema processing.
External Remote Control Input
The external infrared input works with many popular infrared repeater systems to allow for remote
control operation when infrared signals cannot directly reach the front panel receiver. The external
remote input connector is a standard 1/8 inch (3.5 mm) mini jack. Wire the tip for this plug positive and
the sleeve negative. Your Authorized Parasound Dealer or Custom Installer can recommend a
compatible repeater system for your P/SP-1500.
DC Trigger
This connector provides a +12 Volt DC 350 milliampere capacity trigger whenever you turn on the
P/SP-1500. Use this connector to activate equipment such as relays, rear screen projectors, motors for
film screens, power amplifiers or other components that can be triggered with DC voltage. You can also
use this DC Trigger connection to activate the two 15 Ampere relays in the optional Parasound SCAMP
Signal Controlled Amplifier Power automatic switching component. Contact your Parasound Dealer or
Custom Installer for more information about the SCAMP.
AC Line Cord Receptacle
The rear panel mounted IEC standard AC receptacle accepts an audiophile-grade AC cord supplied with
your P/SP-1500. Plug the female end of the AC cord firmly into the AC receptacle and make sure that it
is properly seated. Connect the male end directly to an AC wall outlet that is always "live" so that the
P/SP-1500 retains all its memorized settings. Avoid use of an extension cord or power strip since these
often degrade sound quality.
