ence as a result of its switch-mode operation. Although this is internally filtered and shielded by the GTS100 chassis, some unusually sensitive installations may pick up switching noise, especially when listening to weak AM radio stations. If this unusual situa- tion occurs, one of the following installa- tion corrections will typically eliminate the problem. 1) Relocate the amplifier to a position farther away from the radio or radio antenna. 2) Move the electrical ground of the head unit and/or amp to a different point on the vehicle’s chassis.
3)Keep the amplifier power supply wiring away from the radio or antenna wiring. 4) Wrap the +12 volt power sup- ply wires for the radio/tape deck with metallized shielding tape or ground braid and ground the tape to the chas- sis of the vehicle.
Maintenance
The GTS100 does not require any regu- lar maintenance. Periodically checking the main power supply and grounding points and terminal connections is advisable. Be sure the connections are solid and corrosion-free. Loose or cor- roded connections can cause annoying intermittent noise or unusual opera- tional problems. Do not allow dust to accumulate on the amplifier heat sinks. It will reduce the amplifier’s ability to dissipate heat. Occasional vacuum cleaning will prevent dust accumulation.
Additional System Configurations for Add-On or Upgrade
The features and capabilities of the GTS100 provide tremendous system design flexibility. The diagrams on the following pages illustrate some of the system possibilities. They are in order of increasing complexity, showing the way a system may be upgraded in logical steps. Although the systems are shown using speaker-level connection from the head-unit, they may be built using any combination of speaker or preamp level inputs, depending on the capability of your head unit. (See pages 25-26.)
