|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
75.75.96.141
In Reply to: How can i tell my power source has noise? posted by michaelv20850 on March 23, 2007 at 14:42:24:
I honestly can't tell if the system has noise and it probably has as your comments. One thing i know for sure that my listening room has a separate circuit line to my room which only my gears use power source, nothing else. I hope that i can have better source.
Follow Ups:
Simply wire it to a line cord and plug it in to your audio circuit. It will improve the sound if you have RF noise on the line. Alan Maher has posted this tweak in the past.You can spend a lot more money for slightly better performance.
A dedicated line is good but does not totally isolate your system from RF noise from other appliances in your house. It is still worth the time to experiment by unplugging suspect noise sources.
I look at PS Audio site and i see Ps audio Noise Harvester. Just wondering if it's similar to Hammond 193L choke?
I have a bunch of chokes around - what are the criteria for choosing one for this purpose?
Thanks,
Pete
The Hammond 193L is a 5 Henry inductor, so it will draw about 64 milliamps of reactive current with 120 VAC across it. Some of this will cause heating due to core and resistive losses, but the device should run cool. You may occasionally find one that buzzes due to loose laminations.The device will absorb higher-frequency noise and voltage spikes due to the characteristics of the magnetic core. It will not affect dynamics, as it is wired in parallel with the load.
Be sure the chokes you use have a high voltage rating for the insulation, to withstand surges before the core absorbs them.
What is your suggestion to install the choke? Just lay it around or should it be in closed box?I've ordered Hammond 193L from partsexpress, but it is out of stock now..:) can't wait to try it out those.
By the way, the cord with any guage will do? or it must be a large gauge, let say 10 gauge
Putting the choke in a protective enclosure makes sense if it will be exposed to traffic, but then you have to make sure the enclosure does not cause problems. Don't use steel or anything that will vibrate.The current will be small, but I've found in many similar tweaks that 14-gauge wire gives the best sonic results.
Thanks. I will get one and try it out. I hope it does not restrict the current , therefore reduce the dynamic.
This post is made possible by the generous support of people like you and our sponsors: