First off, I prefer the sonics of the EL34 Jolidas(202/302) to the EL84 based 102 by a very wide margin. Not to mention, the extra grunt they offer to drive a wider range of speakers.
Secondly, the 202 versus the 302...
I think the 202 may have a slightly sweeter sound, when used with the right tubes. Also, I find the 202 to be much more attractive. If I was driving an efficient pair of speakers in a small room, and knew that was all I ever was going to do, and the difference in cost was much greater than $150, I would opt for the 202.
In any other situation, the 302 is the wise move. By far. Why would anyone opt for the 302 over the 202? Easy, the transformers are larger in the 302. Transformers are the most costly, most important, least appreciated component of a tube amplifier. In my opinion, $150 for a pair of larger transformers is not cheap, it's a steal.
Just what do better, larger transformers buy you? Increased bandwidth, more solid bass, more power, more headroom, better able to put power into more difficult impedence/phase angles, better ability to drive a wider range of speakers, etc.
Use the power ratings as a reference only, not the absolute. They will serve you better as knowing which amplifier is stronger than the next. A 10W rating may seem insignificant, but is more ad copy than anything else. I always use power ratings, ESPECIALLY on tube amps, as a guide, not a definitive. I don't listen to 8 Ohm resistors, and I don't know too many others who do anyway. Even if the 302 measured 10W different than the 202(which I would doubt in the first place), music would prove the 302 more superior to the 202.
The effect of better/larger transformers can never be overestimated.
While it may be true that you cannot hear a difference in the setup you are listening to, I can assure you that if you compared them in a few different rooms, using a few different speakers, the $150 difference would seem like a deal you just can't refuse.
Secondly, the 202 versus the 302...
I think the 202 may have a slightly sweeter sound, when used with the right tubes. Also, I find the 202 to be much more attractive. If I was driving an efficient pair of speakers in a small room, and knew that was all I ever was going to do, and the difference in cost was much greater than $150, I would opt for the 202.
In any other situation, the 302 is the wise move. By far. Why would anyone opt for the 302 over the 202? Easy, the transformers are larger in the 302. Transformers are the most costly, most important, least appreciated component of a tube amplifier. In my opinion, $150 for a pair of larger transformers is not cheap, it's a steal.
Just what do better, larger transformers buy you? Increased bandwidth, more solid bass, more power, more headroom, better able to put power into more difficult impedence/phase angles, better ability to drive a wider range of speakers, etc.
Use the power ratings as a reference only, not the absolute. They will serve you better as knowing which amplifier is stronger than the next. A 10W rating may seem insignificant, but is more ad copy than anything else. I always use power ratings, ESPECIALLY on tube amps, as a guide, not a definitive. I don't listen to 8 Ohm resistors, and I don't know too many others who do anyway. Even if the 302 measured 10W different than the 202(which I would doubt in the first place), music would prove the 302 more superior to the 202.
The effect of better/larger transformers can never be overestimated.
While it may be true that you cannot hear a difference in the setup you are listening to, I can assure you that if you compared them in a few different rooms, using a few different speakers, the $150 difference would seem like a deal you just can't refuse.