PSVANE Discussion & Impressions Thread

@markmuse 

I am surprised that you observed the Horizon 12au7’s sounding more full bodied than the Amperex BB’s.   I thought that it would be the other way.  I think that the tube sound is very system dependent.  In my preamp, I found the Horizon 12au7’s sounding nice and clear but a little thin for my taste.   Re-issued Gold Lion 12au7’s have fuller midrange, tighter bass, and more holographic sound.

@markmuse 

Our recommendation is to burn in the tubes for about 50 hours to allow them to stabilize. 
During this burn-in period, if you notice that the sound remains consistent without significant changes, it indicates that the tubes have reached a stable state. 
While we suggest 50 hours, it's not mandatory; some reviewers find that 4 hours are sufficient.

@ampus 

What is your preamp? Mine is a Backert Labs Rhythm 1.3+ (has the brass plate). I will add that this is with only a few hours on them so far, but hope it doesn't change.

@alightronics 

Thanks!

i cant believe youd say something like that, @alightronics.  they do this kind of thing all the time. havent you ever ordered anything from amazon? they stick records in envelopes. 

"OMG, I can’t believe Amazon would use an envelope for packaging! "

@markmuse 

I have an Octave preamp which actually uses 4 ECC82/12AU7 tubes.  I have tried a number of NOS as well as new production tubes and prefer RT and Gold Lions in combination with Amperex/Philips tubes.  Don’t get me wrong, the Horizon is a very good sounding tube, especially for its price, but it sounds a little thin in my system.  If the Horizons already sound nice in your system then they should even sound better after burning in although I thought that Psvane website said that all Horizon tubes are subjected to factory burn-in after production??