As an owner of the classic Ref 210, much as I love these behemoths, 8 KT120 tubes per channel put out too much heat and the fans are noisy. A year ago, I moved to start using highly efficient horns using a Klipsch La Scala. At a 105dB efficiency, all I need is one glorious watt. No more issues with heat. I love the sound of a good SET amp. No pentode in my long 30+ years experience with tubes comes close to the sound of a great SET amp. So, I’m definitely not going to buy any more ARC behemoths.Correct! Also just to add, if your amplifiers have a large bank of tubes, this means more heat. For example, the average number of output tubes in push-pull config on ultra linear mode of say around 60w may comprise of just 4 output tubes. Anything above that number, say 10 to 16 tubes or 8 / 10 power tubes per monoblock, may put out anything between 100 to 300w per channel, this is far more excessive heat. In which case, with the covers off, will certainly have better ventilation. I guess that's why ARC still uses cooling fans at the rear of their high powered amplifiers.
Nice to see that ARC's back in the saddle. Now they just need to figure out the product line-up, and decide moving forwards, which ones to continue with and which ones to drop... you can't offer everything and end up in debt again. Definitely don't want that! Interesting to see where they're headed within the next decade. Good thing to know that the new owner has good intentions and respects this Iconic brand. After all, it has such a rich history why mess it up.
Cheers to ARC, now go forth my son and sell those big beautiful amps!
Woof! RJ
Here’s one of the SET amps I use with my La Scala. It’s so light I can lift it with one hand. Don’t try that with the Ref 210!