Adcom GFS-3

This unit was used in our test system at Skiing Ninja Systems. It worked fantastically for switching between pairs of speakers as we tested.

Adcom Copy:

Works with 8ohm or 4ohm. Now with Adcom's GFS-3 speaker selector you can fill your home with sound at the push of a button Both selectors offer the security of Adcom's unique Minimum Impedance Protection-a design that fully protects your amplifier from almost any problem it might encounter when asked to simultaneously drive multiple speakers. And Minimum Impedance Protection does so without compromising the basic performance of your sound system! How very like Adcom. And how very unlike the competition.

Of course, the inspiration for this innovation comes from Adcom's long experience and substantial success in producing high performance, high fidelity power amplifiers. Part of the knowledge gained over the years is an intimate familiarity with the demands loudspeakers place on any amplifier and the magnified demands created by a multiplicity of speakers. Our design goal quickly became not to just deliver sound to multiple speakers but to maintain the signal's sound quality as more speakers are added.

Measures 8 5/8" x 6" x 3", Weights 3lbs 2oz.

Adcom's user-selectable Minimum Impedance Protection circuit on the GFS-3 Speaker Selector insures accurate and musically pleasing sound regardless of how many pairs of speakers you may want to drive simultaneously. This "security system" inserts massive protective resistors between your amplifier and speakers to insure that the load impedance is always within your amplifier's safe operating range. This low-impedance protection enables your amplifier to drive several speaker systems simultaneously without activating the amplifier's protection circuits or causing amplifier shut-down.

In addition to Minimum Impedance Protection, the GFS-3 feature wide-contact, heavy-duty switches capable of handling the full output of even a 200 watt per channel amplifier. High-quality circuit boards with wide signal traces contribute to minimal power loss. Each speaker selector is easy to connect with twist-lock input and output terminals which insure positive contact with both speaker and amplifier cables and prevent accidental disconnection.