SET the best?

I use SET PP SS designs tried most everything. I enjoy good SS and SET amplifiers but for SET get the right loudspeakers or not so nice. With the right designed loudspeaker a SET can produce deep detailed bass much SPL with low distortion. But loudspeaker will not be small. Still most all systems have limits and a fullrange driver plus SET can be very enjoyable and still have fidelity, not all about colorations and distortions like many say but acurate and detailed as any SS based system. Still for SET best to have loudspeaker designed for power output of amp a 45 SET does not drive loudspeakers as well as hi-power SET;) And will need more care with loudspeaker matching, most 300b set can drive vintage designs and allows more options with loudspeaker choice. 45 SET can sound wonderful but not if loudspeakers not matched. One should always look at audio as a system and SET owners need even more thought to total system matching than most other amp designs.

Johnk ;
I realize you probably don't want to blow your own 'horn' here , so can you enlighten us on the qualities that we should look for in a speaker for SET use ? Particularly refering to the bass issue that you eluded to . We also would be interested in the issue of complicated music refered to above .
It would be helpful if you could go beyond the afore mentioned high db. rating and flat high impedence curve .

You may pm me or ask for a more approprite thread on the speaker page .

Thank you.

Saki70, the speaker should be designed for tubes. See

http://www.atma-sphere.com/papers/paradigm_paper2.html

for more information.

I spent a few months tinkering with some 45-based SETs that I inherited last year. In analyzing the circuit, I realized some performance gains were possible through some simple mods and so got the amps to sound a lot better. Ultimately though I got curious what would happen if I made a P-P 45-based amp and did that as well (it makes about 4 watts and is class A). It was **instantly** better on the first attempt. IMO/IME most P-P amps are too complex and if a minimalist approach is taken SETs will not compete.

Hi Ralph,
I'm going to acknowledge, before I even ask, that this question is likely an example wrongful thinking.

Many people use tubes with speakers that were probably not designed with tubes in mind - in my case JM Lab Mini Utopias. My question is: Can a modification be done, perhaps to the crossover, that would result in the amp seeing a friendlier impedance curve?

For clarity, I'm asking about speaker mods only.