Showing 6 responses by almarg
I should add to my previous post that in addition to the Hammond power strip I referred to, which is basically an outlet multiplier, I use this BrickWall surge suppressor/line filter. The eight outlets on the BrickWall are not sufficient for my system, so I use the power strip in series with one of those outlets. Regards, -- Al |
The BrickWall surge suppressor/line filter I mentioned earlier is used by a number of A'gon members, and I don't recall ever seeing any complaints about it choking off dynamics, if that is your main concern. It certainly doesn't seem to do that in my system. Although my amplifier is class A and therefore draws essentially constant current regardless of the dynamics of the music, so results with class AB or class D amplifiers could conceivably differ. It costs $259. If you want a power strip that is purely a power strip, though, and does nothing to the AC beyond routing it to multiple outlets and providing a switch, why not try the $38 Hammond model I linked to earlier? It doesn't have the Furutech's fancy contact platings, cryogenic and demagnetized conductors, emi absorbent coating, etc., but who knows what if any benefit those features would provide in a specific system anyway. Regards, -- Al |
Interesting, Nonoise. But at this early point in your experiments I don't think that the differences you heard should necessarily be attributed to inherent differences between the two line filters themselves. Keep in mind that what you've done changes up to FIVE variables at once. In addition to changing the AC line filtering that is being provided for the SACD player, you've probably changed four other things: 1)Digital (or other) noise fed back into its power cord by the SACD player was previously subjected to no filtering before reaching whatever other component may have been plugged into the other of the two outlets in the same duplex pair on the BrickWAll (assuming there was another component plugged into the same duplex pair on the BrickWall as the SACD player). Now, instead of no filtering between the SACD player and that other component there is filtering between them being provided by BOTH the BrickWall and the Thingee. 2)Previously digital (or other) noise fed back into its power cord by the SACD player was filtered just by the BrickWall before reaching the power cords of components plugged into other duplex outlet pairs on the BrickWall. Now noise coupling via those paths is filtered by BOTH the BrickWall and the Thingee. And the filtering of this noise that is being contributed by the BrickWall is probably more stringent in the new arrangement than previously (since the relevant pathway now includes the path between duplex outlets on the BrickWall and the AC outlet on the wall, rather than just between duplex outlets on the BrickWall). 3)Same as number 1, except in the reverse direction, i.e., you've added filtering of noise coupled from that other component TO the SACD player. 4)Same as number 2, except in the reverse direction, i.e., you've increased filtering of noise coupled from other components TO the SACD player. So pending further experimentation I don't think a conclusion can be drawn as to whether the differences you've perceived should be attributed to inherent differences between the two line filters, or to one or more of those other four variables. As I've said in a number of past threads dealing with other matters, in audio it can often be very difficult to assure that a perceived sonic difference is being attributed to the correct variable. Best regards, -- Al |
