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FredT300B  > Hobbies > Speakers
With speakers, size does matter!
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Shown under construction, an open back design featuring 8" Dayton Audio PS220-8 Point Source Full-Range Neo Driver with a 15" H-frame eminence Alpha 15 subwoofer, using a 100 watt plate amp for each sub.
The DR912a line arrays speakers
Jim Griffin design mass loaded transmission line speakers using Mark Audio Alpair 10.2 full range drivers. Front view of one enclosure along with a back view of the other. (Set cursor on the picture for larger views).
The Selah Audio XT-8 line arrays, each incorporating eight 7" Vifa XT woofers and eight Fountek ribbon tweeters.
Selah Audio XT-8 Line Arrays. Each ported enclosure is 72"H, 14"W, 18"D, and houses eight 7" Vifa XT-18 midbass drivers and eight Fountek JP-2 ribbon tweeters. The crossovers use Alpha Core copper foil inductors, Hovland caps, and Mills resistors.
The ART Arrays driven by 2A3 SET Bottlehead Paramour monoblocks, a Goldpoint stepped attenuator passive "preamp", and a modded Toshiba 3950 DVD player. The parts needed to build a pair are avaiable from Parts Express for $275, excluding the enclosures.
The latest version of the Studio One Pi tower, using the standard One Pi kit in a 2 cu ft enclosure tuned to 49hz. The enclosure is 9.5" wide, 12.5" deep, by 36" high. The enclosure is made from 11 ply baltic birch veneer plywood. CLICK ON PICTURE TO ENLARGE
An earlier pair of One Pi Towers in the downstairs system.
Speakers lined up for the July 22 Lone Star Bottlehead meeting. L to R, the Insignia standmount speakers, Jim Griffin design MLTL single driver bipoles, Zaph Audio two ways using Seas metal cone/dome drivers, the FredAudio F8's having 95dB sensitivity and 1st order crossovers using Eminence Alpha 8 woofers and GR Research T-6 silk dome tweeters. The partially visible drivers at the right edge of the picture are from a pair of Klipsch Cornwalls I'm refinishing.
Shown under construction, an open back design featuring 8" Dayton Audio PS220-8 Point Source Full-Range Neo Driver with a 15" H-frame eminence Alpha 15 subwoofer, using a 100 watt plate amp for each sub.
Shown under construction, an open back design featuring 8" Dayton Audio PS220-8 Point Source Full-Range Neo Driver with a 15" H-frame eminence Alpha 15 subwoofer, using a 100 watt plate amp for each sub.
Shown under construction, an open back design featuring 8" Dayton Audio PS220-8 Point Source Full-Range Neo Driver with a 15" H-frame eminence Alpha 15 subwoofer, using a 100 watt plate amp for each sub.
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