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Valve was working fine before it got treated with contact cleaner. But could have been a one-time thing

The contact cleaner managed to break the seal between the pins and the glass

Contact cleaner on tubes could be disastrous. It happened to me on luckily only one occasion.

Nothing was ever really the same

NOOOOOOOO dont do that. If it worked you just Lucky.

Very few Ref4 had that driver. Most of them used the same driver as the dahlquist DQ10 and some used the 10" SEAS

I have Much better solutions for you with actual improvements. If you understand why huge capacitor banks are used, you will also realise there are better ways to improve it for much less. I only use 4400uf per rail on my vanguard amps for the outputs but i have very good low impedance...

They should be fine. Change all the small caps on the board. See pm

How do you improve on a hafler? Ask @shrek he successfully rebuild a few

They are C-core transformers that Daan assembled in house

I recently experienced the same phenomena but it had more to do with the streamer used. standard Raspberry pi4 USB out to DAC and a Raspberry Pi4 with a Kali HAT to I2S same DAC as with the other Pi. the one with the KALI HAT definitely sounded "faster" or rather more accurate. the standard...

how loud it plays at a certain preamp setting got nothing to do with the max power handling. One might need 1,7v in to drive it to 200w the other might need 3.5v to drive it to 200w

Looks absolutely friggen amazing

Wish i could have shown you what is possible with the soekris. Stock it is just ok, didn't wow me With a few mods it is friggen amazing. Do yourself the favour and spend the R1800 to take it to exceptional

My man Solly. Glad to see him being acknowledged

Jason I am glad you took my advice. Been wanting to do this to speaker for a very long time.

Boarding now.

YOU ARE ALL WRONG this is the best DAC

Geez thanks guys, ALL OF YOU!!. Tonight i truly have a lump in my throat. Thank you very much. Stefan you humble me, i would have loved to have one last coffee with you, wished you could have experienced my latest creations in symphony, what can i say. Johan, we had our differences [emoji6] but...

Many have visited me in this space Many thought this won't be possible