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Custom unfinished Scanspeak/open baffle speakers
Custom unfinished Scanspeak/open baffle speakers
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Old 5th March 2003, 09:33 PM   #1
Ric Schultz is offline Ric Schultz  United States
diyAudio Member
Join Date: Mar 2002
Location: Soquel, CA
Default Custom unfinished Scanspeak/open baffle speakers

One pair of custom speakers for sale. Unfinished (unpainted highly refined particle board--like Rangerboard). The speakers consist of:

2 Scanspeak 8545 woofers per channel in cabinet (24"x16"x12"). Each 8545 is in its own separate 19 liter enclosure. There is a port hole on the back for each woofer(I use one with port and one woofer closed box, you can use however you choose). The box is made with two different thicknesses of highly refined particle board with visco elastic bonding material (Swedac) in between. All cabinet walls and braces are 1 and one quarter inch thick. The Scanspeak drivers have Marigo dots on them and Deflex on the magnets. The drivers are mounted to the cabinet with deflex gasket material. The insides of the boxes have some deflex and some long hair wool.

The midranges are two Vifa 5 inch drivers (P 13WG-00-08) mounted on an open baffle (15 inches high by 12 inches wide-same width as woofers) that sits on top of the woofers. This verticle baffle is attached to a panel that sits on the entire top of the woofers. The two pieces are braced together by two heavy steel shelf brackets that are damped with Soundcoat GP-3 damping material. The front baffle and flat bottom panel are one and one half inches thick (two three quarter inch pieces of highly refined particly board with Swedac inbetween). The midrange drivers are mounted to the baffle with Deflex gasket material. The midrange drivers have Marigo dots on them and Deflex material on the back of their magnets.

The Tweeter is a modified Vifa (D27TG-45). It has the back cut off to lower its resonance frequency and for lower distortion. This tweeter was A/Bed with an Esotar and found to be the same (at least a the 95db level we were listening to). Before modding the Vifa sounded distorted by comparison. The tweeter is mounted from the back on a three quarter inch thick piece of highly refined particle board (six inches high by 12 inches high) that sits on top of the midrange panel (currently conneced by cellophane tape). Of course, one would do a more secure mounting. The tweeter fires through a flared opening in the panel and is slightly set back on the midrange panel to time align it with the midranges (this is why it is mounted from the rear of the panel, as well).

The Crossover is a 3 mh 12 guage coil from Northcreek on the woofer, nothing on the midranges (running wide open) and 8 uf of Infinicap with .01 uf Infinicap bypasses on the tweeter. The crossover frequency is 300 cycles and about 6K. The midrange drivers on the open panel start to fall at 300 by themselves.

There are adjustable spikes on the bottom of the woofers and I use a 12 inch square sheet of Navcom to isolate the midrange panel from the woofer. Wires on the Woofer are some Audiquest solid core and the wires from the midranges to the tweeter are very little insulated pieces of Harmonic Tech top of the line speaker wire. No other wiring or binding post (yuck-please hardwire) are supplied. I used them biwired with some custom wires wired directly from the output devices on the amp to the midranges and then jumpers to the tweeters and separate woofer wires to the coils for the woofers.

$525 for all the above.....plus shipping, prefer pick-up.

The woofer boxes and panels cost me about $600 to have made. The retail on the woofers is about $600. The midrange drivers are about $70 and the tweeters about $50. The Infinicaps, giant Northcreek coils, deflex, spikes, Navcom, brackets, etc. well.....anyway, its a bargain.....to say the least.

These speakers weigh about 100 lbs each. Over 70 lbs. for the woofer box and about 30 for the top panel.

The total dimensions are 46 inches high, 12 inches wide and 16 inches deep.

With a good paint job and some nice felting on the face of the midrane/tweeter panel these speakers would look quite professional. The cabinets were made by a artist/woodworker in Berkeley CA. and have rounded edges.

Most importantly, they sound great! Very open and electrostatic like.....I am now a VMPS dealer and have the $11,000 TRT capped RMX/Elixir speakers coming so must make room for a new reference.

I would prefer someone pick them up but will ship. However, it would be over 200 lbs. and in three boxes (one each for woofers and both upper panels in one box.

Interested parties can contact:
Ric Schultz
Electronic Visionary Systems
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