Does anyone know if Sophia Electric's 845M is the same as or different than SuperTNT 845M ?? I 've been watching SuperTNT website for a while now but they havent had their 845M available again yet.
Sophia sells the current production of the older Shuguang 845C, but it's a better tube than the original 845C in my experience. I'm using the Sophia-sourced tubes now and think enough of them to have a back-up pair ready in case disaster strikes :-)
Can't help you with the dissipation ratings, sorry. I've tried various 845s, starting with the cheapest Chinese ones, then the 845Bs from Super TNT and elsewhere, and ultimately the ones from Sophia, These took my amps to a new level of clarity and dynamics, quite a marked improvement over the "B's". One of my first Sophias went bad after a litle more than a year, but I've had no further problems. The current pair has been in place for around 8 months IIRC. Dave
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