Home Speaker Asylum

General speaker questions for audio and home theater.

Re: grafyx speakers

The Grafyx SP (standard of performance) series was built by August Systems in Champaign IL.

August Systems also built large PA sound systems for groups like REO Speedwagon.

The woofers were built by Gefco, the tweeter was a Norelco (Philips) AD01624, a 1" polycarbonate dome with phase plug and ferrofluid. If you were careful you could use a 100W amp on them.

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