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Speaker Asylum General speaker questions for audio and home theater. |
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Speaker Asylum General speaker questions for audio and home theater. |
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In Reply to: Jeffrey's Vandersteen 5A thread #2 posted by jeffreybehr on April 26, 2011 at 14:36:30:
...all those black-potted devices, I decided initially that I wouldn't do anything with the crossovers, at least for a few months. But my heart overcame my brain the other evening, and I replaced the 3 DynamiCap bypasses (1 for the MR-series cap and 2 for the 2 treble-series* caps). I used 0.1uF SoniCap Platinums; 4 had some hours on them and 2 were new.After a few hours, I THINK the transparency is improved, but from my perspective that's equivalent to trying to distinguishing 9.7 from 9.6 on the 10-scale. We'll see what I think after a few-hundred hours of music on them.** The second evening, after only a few hours of run-in, the system sounded breathtakingly transparent on SACDs.
Have also ordered speakercable. I again chose the recipe of Sonic Craft's Jeffrey Glowacki, that being double-per-pole 18g. Neotec OCC-copper (= 15g.) for the MR, braided tightly. The treble cable uses one strand of that plus a strand of Neotec 23g. OCC-silver per pole (= 17-1/2g.?); the silvers are twisted into a core with the copper counterspiraled around the silver, with all this wound or braided tightly. Since my mildly-arthritic hands were sore for two weeks after last time I braided this kind of cable, I'm having SC braid it this time. (SC is now winding this stuff to order, at least for their existing customers.) I'll use AQ direct-silver-over-copper spades on both ends, and I may add a simpler (than last time's) dielectric-bias system to them.
* The tweeter has caps, 9.4uF of WIMA 100VDC 'propylenes, in series on each of the positive and neutral legs.
** I'll be driving the systems with broadband pinknoise 24 hours per day for a couple weeks, without the bassamps plugged in.
Edits: 05/13/11 05/16/11 05/16/11 05/19/11
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Follow Ups
- After having a schematic traced but without removing and measuring... - jeffreybehr 17:16:57 05/13/11 (0)
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