You have to find what YOU like best. Some prefer 300B amps. Some like flea powered SET's, like 2A3's. Some like the versatility of a push-pull setup. You can roll tubes with almost any tube amp. But sometimes, rolling gets pricey. Willing to spend a few hundred dollars for a new pair of 300B's to roll? I have an EL34 based amp that isn't close to the sonic quality of the 845 based amp I currently use. But there's a great disparity between the build quality of the EL34 amp (fair) and the 845 amp (excellent). Is it the tubes? or the transformers? Or the internals? Don't know. Just know which one I like better. If you want to go SET, you may want to look at an 845 based amp, they produce substantially more power than does a 300B based amp, perhaps enough to eliminate the need to buy new speakers. But if you do that, forget about rolling- there aren't enough makers of 845 tubes out there to make a difference. Bottom line- you need to experiment and find what sound you like best. My opinion doesn't really matter to your ears, you know?
Amps for tube-a-holics?
I'm aware that any tube amp's tubes can be rolled, although some makers like Shindo and Joule discourage the practice. I was never brave enough to do anything but replace the tubes in my Joule and Berning (although I did upgrade the tubes with a set of Mullards).
I've recently borrowed the wonderful Leben CS-660P and there's a list of output tubes you can try with this amp that I find would be rather fun to dink with. While I'm still contemplating the purchase of this amp, I've always had an urge to go the 300B SET route with much more sensitive speakers than I currently own. I was thinking of a Yamamoto A-09S. I'd assume there's probably a huge difference of opinion among those who prefer a beam tetrode/pentode over a triode. Without causing too much of a stir, for the tube-a-holics, what is your preference and why? Availability, cost, tube life, etc? Granted probably the major factor is the power requirement of your speakers.
Also the Leben's selector switches make it very easy to try another tube. Are there other recommended amps that make it this easy to tube roll?
Thanks!
I've recently borrowed the wonderful Leben CS-660P and there's a list of output tubes you can try with this amp that I find would be rather fun to dink with. While I'm still contemplating the purchase of this amp, I've always had an urge to go the 300B SET route with much more sensitive speakers than I currently own. I was thinking of a Yamamoto A-09S. I'd assume there's probably a huge difference of opinion among those who prefer a beam tetrode/pentode over a triode. Without causing too much of a stir, for the tube-a-holics, what is your preference and why? Availability, cost, tube life, etc? Granted probably the major factor is the power requirement of your speakers.
Also the Leben's selector switches make it very easy to try another tube. Are there other recommended amps that make it this easy to tube roll?
Thanks!
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