Gsm18439,
Your comments about the sound of the 2a3 and 45 amp illustrate how important it is to hear these different tubes. Yes, the 2a3 and 45 ARE leaner sounding tubes. Both, particularly the 45, CAN actually deliver deeper bass than the 300b, but, neither have the big, fat, upper bass that so many listeners love about the 300b. Personally, I like the 2a3 and 45 more than the 300b because, in my system, the 300b sounds too bloated and lumpy in the bass range. I particularly like the 45, but for the very low output of that tube.
Rebbi,
If you are willing to take a little bit of a gamble, go with the interesting, low-cost alternatives mentioned here. If you want more of a sure thing, go with the Audionote kit. The kits are quite reasonably priced and Audionote provides good instructions on how to build them. I have heard most of their lineup of amps and they all sound very good. I have not heard a kit amp, but, a good friend of mine built their DAC4 kit and it is a particularly good DAC for the money.
Your comments about the sound of the 2a3 and 45 amp illustrate how important it is to hear these different tubes. Yes, the 2a3 and 45 ARE leaner sounding tubes. Both, particularly the 45, CAN actually deliver deeper bass than the 300b, but, neither have the big, fat, upper bass that so many listeners love about the 300b. Personally, I like the 2a3 and 45 more than the 300b because, in my system, the 300b sounds too bloated and lumpy in the bass range. I particularly like the 45, but for the very low output of that tube.
Rebbi,
If you are willing to take a little bit of a gamble, go with the interesting, low-cost alternatives mentioned here. If you want more of a sure thing, go with the Audionote kit. The kits are quite reasonably priced and Audionote provides good instructions on how to build them. I have heard most of their lineup of amps and they all sound very good. I have not heard a kit amp, but, a good friend of mine built their DAC4 kit and it is a particularly good DAC for the money.