[
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2009, Audio Asylum, all rights reserved ]
[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]
74.71.16.210
In Reply to: RE: AC Power Regulator for Joule Electra VZN-100 posted by Lew on January 05, 2009 at 07:24:40
Peps issue is that he is getting short term (like over a period of several minutes or less if I understand correctly) line voltage variations which can cause the filament string voltage (the number that is read out on each amps LCD meter display) from around 63 to 68 volts. Biggist I have ever seen a volt or two at most gradual change during the day (several hoours of operation) here in the states (i.e. of minor consequence).
With the kind of variation that pep is getting, the bias of the tubes can vary a fair amount. Not so great that its going to harm the tubes IMO, but enough to move the bias out of the preferred general zone (sweet spot if you will) were the amps sound thier best. Is this noticeable/audible - to be honest I don't know? (if the change in voltage is short enough in time and settles back to a certain normal value, there may not be enough time for the bias to drift out of that sweet spot - in which case the listener may not notice anything) .
Monster makes a big power conditioner which is essentially a mutli=tap autoformer (i.e. it monitors voltage and switches in or out additional taps on the transformer to keep line voltage from sagging or surging) that will fix the issue.
Happy Listening,
Rich Brkich
Retailer & Audio Asylum Industry Liaison
Follow Ups:
Post a Followup:
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2009, Audio Asylum, all rights reserved ]