Ralph,
If you would address speaker load, I for one would be interested. I can express my preconceptions but it would be better just to have the subject addressed in a broader way. I can say that I would love to try some OTLs on my speakers (four way, horns for top three and isobaric woofer configuration on bass). Efficiency for woofers vs horns is about 8dB different and I am pretty sure the high three are padded down the crossover. I think the mids and treble (104dB) have a relatively high impedance but I expect the isobaric bass (96dB) may dip as low as 4 ohms (I remember reading that somewhere). I need about 30W or what I think is significant damping on the bass. My 13W EAR 859s just don't cut it on the bass, and my 8W AudioTekne PP 2A3 amps produce almost no bass.
Would an autoformer allow the low-power tube amps and an OTL to work?
If you would address speaker load, I for one would be interested. I can express my preconceptions but it would be better just to have the subject addressed in a broader way. I can say that I would love to try some OTLs on my speakers (four way, horns for top three and isobaric woofer configuration on bass). Efficiency for woofers vs horns is about 8dB different and I am pretty sure the high three are padded down the crossover. I think the mids and treble (104dB) have a relatively high impedance but I expect the isobaric bass (96dB) may dip as low as 4 ohms (I remember reading that somewhere). I need about 30W or what I think is significant damping on the bass. My 13W EAR 859s just don't cut it on the bass, and my 8W AudioTekne PP 2A3 amps produce almost no bass.
Would an autoformer allow the low-power tube amps and an OTL to work?