In Reply to: It seems to be a diurnal variation. posted by rick_m on October 27, 2008 at 08:47:51:
While some may regards p=line conditioning as being ineffectual, I find that addressing power grid variations to be the key to consistent performance. To be certain, power line conditioning covers many aspects and issues and very few line conditioners (affordable ones, that is) can address all possibilities.
I used a large number of PLC's including some based on Corcom modules. The Corcom module based ones were used primarily for front end gear with more limited current draw. I left my amps unfiltered until I tried the Shunyata Hydra which did a marvelous job on large current devices but worked poorly for the small current components. I also find that the divide and conquer concept very beneficial in using separate conditioner stages to isolate every device in the audio chain.
One interesting step was the installing of two ferrites per power cord on every appliance plugged into the home power grid. You need to place the ferrites at the ends of the power cords but that noticeably lowers the amount of hash on the power grid. You can pick up ferrites fairly cheaply from Digikey these days, but when I had experimented with them about 15-20 years ago, I had to order them from the factory (Steward, IIRC). I don't like them on the audio components, but they work well on the lamps, clock radios, frig and other things on your power grid.
Stu
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Follow Ups
- RE: It seems to be a diurnal variation. - unclestu52 11:54:13 10/27/08 (15)
- RE: Ferrites - geoffkait 13:46:18 10/27/08 (0)
- RE: It seems to be a diurnal variation. - rick_m 12:26:50 10/27/08 (13)
- RE: It seems to be a diurnal variation. - unclestu52 12:12:29 10/28/08 (12)
- RE: It seems to be a diurnal variation. - May Belt 12:47:01 10/29/08 (1)
- I don't know - unclestu52 20:26:03 10/29/08 (0)
- RE: It seems to be a diurnal variation. - rick_m 12:40:21 10/28/08 (9)
- B b b b but - unclestu52 12:12:11 10/29/08 (8)
- RE: B b b b but - rick_m 12:58:04 10/29/08 (7)
- according to some reading - unclestu52 19:52:55 10/29/08 (6)
- RE: according to some reading - rick_m 21:35:31 10/29/08 (5)
- definitely true about - unclestu52 13:37:07 10/30/08 (4)
- RE: definitely true about - rick_m 20:08:16 10/30/08 (3)
- RE: definitely true about - unclestu52 09:57:30 11/01/08 (2)
- RE: definitely true about - rick_m 11:53:51 11/01/08 (1)
- very interesting - unclestu52 12:50:28 11/01/08 (0)