
Originally Posted by
lpcollier
Thanks, I really appreciate your info on these speakers. I've had another look at the crossovers and decided to revert to the wiring as shown on the Lampizator project page, I think I either made a mistake in how I interpreted the point to point wiring that I inherited from James or maybe he was experimenting with different drivers and crossover configurations. It's now as detailed on the project page, including the recommended additional inductor. It sounds even smoother to me now and has lost some slight reediness that I heard in the upper midrange on the previous configuration that was complimentary to brass instruments but not so much for vocals, it's a bit more balanced as it is now.
I think you're wise to put them back to original - its a good starting point for future owners. The original crossovers have served me well with only minor changes when I have changed drivers.
Those speakers can be driven with just about any amp. My 'lowest' is a 1.8watt. As the saying goes, "everyone should hear Open Baffles at least once in their life."
I did, and never went back to boxes or horns.
Source
SW1X Universal Music Server UMS I Signature with Power Supply Unit PSU I Signature
SW1X USB II
SW1X DAC III Special
Audiolab 6000 CDT transport
Amps
Pre amps -- Hi fi Collective twin mono ladder stepped attenuator, with Charcroft Z-foil and silver wired. And First Watt B1 active no gain buffer.
Power amps -- Welborne 45 SET monoblocks 1.8W / Decware Taboo 6W / Elekit 300B TU-8600SVK plus further improved components 9W / ICE Power 1000W
Speakers
Highly modified Endorphin P17 open baffle speakers containing both vintage and modern alnico drivers and paper cones. All silver wired - 8" Cube Audio FC8 full range drivers and vintage 15" Altec VOTT 416 bass drivers. All sat on Townsend Audio Podium seismic isolation platforms.
BK Electronics XLS400FF Sub.
Cabling
Silver mains cables, interconnects and speaker cables by SW1X
Headphones
HRT HeadStreamer and SennHeiser HD650 headphones