Forums
http://www.decware.com/cgi-bin/yabb22/YaBB.pl
AUDIO FORUMS >> General Discussion and Support >> Zen select input tube bias - Anyone mod for LED?
http://www.decware.com/cgi-bin/yabb22/YaBB.pl?num=1369503244

Message started by nubz69 on 05/25/13 at 18:34:04

Title: Zen select input tube bias - Anyone mod for LED?
Post by nubz69 on 05/25/13 at 18:34:04

I'm just curious if anyone has tried using an LED bias for the input tube on their amplifier and if it was a worthwhile mod.  

Title: Re: Zen select input tube bias - Anyone mod for LED?
Post by clowkoy on 05/25/13 at 20:30:09

You can try 2 hlmp 6000 in series same as what I did with the zkit/zstage (12au7). I didn't like the sound though.

Title: Re: Zen select input tube bias - Anyone mod for LED?
Post by nubz69 on 05/27/13 at 01:33:37

Just modded my amp.  Now one switch setting is the original high bias level and the other is led biased.  There is a very clear improvement accross the board with the led bias.  I have had this amp for 10 years and I still love it.  This is my first major mod to the amp.  If I try anything else I may put a ccs on the output tubes.  

Here is some more info on led bias.
http://www.diyaudio.com/forums/tubes-valves/76025-ping-sy-led-cathode-bias.html

Forums » Powered by YaBB 2.2.2!
YaBB © 2000-2008. All Rights Reserved.