Just my own two pennoth, for what its worth, I would say that the HD600 will scale extremely well with better source and amplification. I was surprised when moving from a 'treated' Musical Fidelity xcans v2 to a Feliks Euforia AE. I was like you, a bit uncertain about keeping the HD600s so I...

Original cost was probably 12/- a pair or 60p

I purchased a pair of Mullard 6030s from Langrex which came yesterday, They have the code R6F1 so Mitcham factory. They sound quite nice but do need a few more hours before they come on song. But even now l can hear greater bass extension and a smoother treble, not at all rolled off. Mids were a...

Would you need an adaptor for this valve?

Has anyone seen this? Sounds really interesting https://brimaruk.com/menugbvp/great-british-valve-project-2/ Found them while searching for a pre-amp valve. They are selling Brimar TP 6SN7GT for £25 each.

According to the user guide the valves take 50 hours to reach an optimum state and should last about 5000 hours before needing to be replaced. Although with all the tube rolling going on I wonder if any one has actually reached that on one set of valves, Older valves may reach an optimum state...

I have had my 600s since about 1995 and find they scale remarkably well. I did get an itchy wallet and was casting about for an upgrade. I kept being told that to gain any appreciable increase in performance rather than just tonal balance, I would have to spend considerably more than I was...

Well that is good to know. Why do buyers insist upon and vendors trumpet the matching of valves?

They apparently sound better, although I am only going by what I have heard on forums such as this so it could be pure hearsay, My main motivation is to have a stock of reasonably priced compatible valves that sound nice. To illustrate my point I have found some very nice Mullard ECC32 but at a...

Hi Wonder if I could ask some advice with respect to Power valves. I have come across a source of USA made GE 6080 black plate valves for £12 each, but they do not match them. How much out of matching tolerance would be acceptable before it is a no no? Perhaps it would be better to go with a...

I have a Euforia 20AE being fed with a Naim NDX which sounds absolutely marvellous. The Naim is connected over a wired Ethernet network to a Synology NAS as it uses DNLA set up is simplicity itself. It is very revealing if your sound files are low res, it will not sound very good the same with...