Building the Audio Note Kit 1 SET amp...

Klipsch forte 2 used are the ones I have taken notice of most. 99db efficiency I believe is the spec.

Hmm negative reactions to Klipsch a line that has probably sold more speakers and been around longer than 90% of the lines around here. Not exclusive enough I suppose. In any case used forte 2 can be had for 500 or so used in good shape and have a big following so no problem would be had reselling. You never know until you try. I have heard several of their more modern lines as well and thought them to be quite good even off modest amplification. Hard to beat for high efficiency per $$$ which matters a lot with just a few watts to play with.

New Klipsch Heresy II that just fit your budget new reviewed by Absolute Sound.

THese are the other Klipsch that stay on my radar screen for affordable true high efficiency speakers. Older versions come up used for less regularly. These were originally made with low power tube amps in mind back in the day.

Rebbi's small complaint was that the DeCapo did not capture the lower octave on stuff with Synth bass with his 300B.

Rob, more precisely the complaint was that the amp clips when reproducing that and other material having high volume content at deep bass frequencies. Clipping, in turn, results in distortion of ALL frequencies that may be simultaneously present, including harmonics and other frequency components produced by the synth at much higher frequencies, as well as notes that may be simultaneously produced by other instruments or singers.

Resolving that problem while continuing to use the Kit 1 amp calls for a speaker having considerably greater efficiency than the De Capo provides. How well and to what degree the speaker can reproduce deep bass frequencies is a separate question.

Although the Klipsch's 99 db/1W/1m efficiency rating is arguably somewhat optimistic, as is pointed out in the review, it is undoubtedly MUCH more efficient than the De Capo.

My comment should not be interpreted, however, as advocacy for the Klipsch.

Best regards,
-- Al

Mik its very efficient and designed to work well with low power tube amps and within budget.

As pointed out most speakers have trade offs. Whether not its the speaker for rebbi or not who knows. Its certainly a viable candidate. Bass need not be as extended usually in a small room and many feel these deliver quality bass especially off just a few watts which seems logical due to high efficiency enabling more bass per watt. Its one on my radar screen for a low power tube amp.