cmk 0 Report post Posted February 8, 2010 Does anyone know if voltage swings will cause tube equipment to hum? I've been told that the voltage at night goes up quite a bit. Would solid state equipment be less susceptible to hum in these situations? Share this post Link to post Share on other sites
heady 0 Report post Posted February 9, 2010 I am no expert but it seems hum comes from the nature of AC. If the signal wiring is not routed carefully, it is possible for the AC to induce DC current in signal wiring which will cause the hum. Other causes are ground loops. Google the term to read more about it. Share this post Link to post Share on other sites
Darkkopi 0 Report post Posted February 10, 2010 As long as it does not go over 250V, it should be fine Share this post Link to post Share on other sites
ical 0 Report post Posted February 19, 2010 (edited) Get a power conditioner and it'll solve all your problem. Clear and stable power is the source of good sound. Edited February 19, 2010 by ical Share this post Link to post Share on other sites
cmk 0 Report post Posted February 22, 2010 Got the problem fixed while I was in SG last week. TS Lim just tapped the right setting (6v) for the tubes and its now silent. Got back to Shanghai and plugged in the AT W100 and enjoying the music. The Denon D7k has been a revelation in their detail retrieval, and very beautiful sounding through the Cyber 30. Gonna try swapping around to see how it sounds through the Diva. Share this post Link to post Share on other sites
zer061zer0 0 Report post Posted March 3, 2010 Get a power conditioner and it'll solve all your problem. Clear and stable power is the source of good sound. I am in Guangzhou, and owned a power conditioner, but I still experience tremendous swings. there was once, I had such a bad one that more player "hang", cannot stop, cannot play or fast forward. Share this post Link to post Share on other sites
ical 0 Report post Posted March 3, 2010 (edited) Which conditioner are you using? Most budget version doesn't regulate voltage. So far I find that the best is still isolation transformer conditioner for unstable voltage. Edited March 3, 2010 by ical Share this post Link to post Share on other sites
neutralzz 0 Report post Posted March 4, 2010 Which conditioner are you using? Most budget version doesn't regulate voltage. So far I find that the best is still isolation transformer conditioner for unstable voltage. any idea how an isolation trans power conditional regulates unstable voltage? i had once attributed hum and noise to the poor old electrical wirings in my old home and had considered to get a 1:1 isolation trans before, but never got around getting it Share this post Link to post Share on other sites
headphonecrazy 0 Report post Posted March 4, 2010 I am using a Power Plant Premier aka PPP as my main power source.... Share this post Link to post Share on other sites
ical 0 Report post Posted March 4, 2010 any idea how an isolation trans power conditional regulates unstable voltage? i had once attributed hum and noise to the poor old electrical wirings in my old home and had considered to get a 1:1 isolation trans before, but never got around getting it http://en.wikipedia.org/wiki/Voltage_regulator Most budget conditioner use only filters which constraint power. That's why amp lack dynamic when connect to some of these conditioners. Share this post Link to post Share on other sites
TGR 0 Report post Posted April 29, 2010 think most power conditioners are just isolation tranny with some caps and passive components, the best is to get power plant!! regenerate the waves and voltage.. Share this post Link to post Share on other sites