Power tubes on a lps


I have a modwright power supply feeding my oppo sonica dac/streamer

modifed by Modwright.  I swapped a Genalex gold lion u77 and installed a 

ge 5u4gb.  Ge is more precise, detailed and deeper spacialy.
The genalex is warmer and easier to connect to but more 2D. 
 

Power tubes sound different.  
 

cdtd

My experience has been the tubes sound different, including in power supplies. Tubes are a variable. Sometimes subtle, sometimes less so, but that same difference can vary from circuit to circuit and system to system. 

I keep seeing new things you can  buy tubed. Is there anything you can’t put tubes in?! They will be putting tubes  on cables next! 

I have the little Had Inspire SEP stereo tube amp that Max’s at 12wpc. It takes any power tube from el34 to KT 150. It has a rectifier tube hence I have about 8 nos rectifier tubes. While doing extensive tube rolling I found that with the lower voltage rectifier tubes I get that smooth mellow sound but with full bass that is usually referred to as “ Sag “ by guitar players. Look up Dub Step Girls rectifier tube review. It’s an interesting read. Cheers , Mike B. 

Nice article on the tube comparisons.

Thanks.  I am now looking at some 6sn options as well.

the gold lions I am using in my pre/dac/streamer sound better 

than the bugle boys I had been using.  But I think its time

to revisit those and a rectifier tube.  Then maybe a look at the

a bump up the Nordost line or the Kimbers.