If any readers want an overview of SE vs PP, this is the best I’ve ever found. It’s clear and interesting:
http://www.x3mhc.no/dokumenter/SE-v-PP-Part1.pdf
http://www.x3mhc.no/dokumenter/SE-v-PP-Part1.pdf
The Audio Gods are tough but fair-Have you had the "Curse of the 300B" ?
If any readers want an overview of SE vs PP, this is the best I’ve ever found. It’s clear and interesting: http://www.x3mhc.no/dokumenter/SE-v-PP-Part1.pdf |
Yes, I'm in the SET cult too. I have multiple SET-ups, all driving various Klipsch heritage speakers. My main set is Cary 300B monoblocks driving Chorus speakers with a tube pre and mostly vinyl sourcing. But my second, and actually preferred set, is Bottlehead 45 monos driving La Scalas. Both are louder than I'd ever need, and obviously the La Scalas are even more efficient, but to my ears the 45 tube is slightly more detailed and musical than the 300b, which I consider a "rock-n-roll" tube. One day I'll experiment more with tube rolling these amps.... |
@glow_worm That is one of the best articles out there in that it explains clearly what is going on in a single-ended amplifier that contributes to what many of us hear as its "magic". Of course we can also see why push pull is so efficient. I read that article a few years ago and it is inspirational to me when I'm designing an amplifier. Of course, like all things audio- it can become addictive! So true to the audiophile "bug" I will be playing with some large transmitter tubes next (211/845). I also wanted to thank those that made mention of Aric Audio in this thread for the kind words :-) Best regards, Aric |
I get very satisfactory sound levels with my 300b monoblocks driving Proac 1SC, (86 dB./1W/1M), by biamping below 70 hz. To a pair of servo subs. Marchand 4th order passive xovers, drive a pair of Yamaha servo subs . 300B is addicting to listen to. Room is 24 by 12 by 8 high. Diy ,Je labs 300B monoblocks . Relieving the main speakers from reproducing bass, improves efficiency a great deal, while maintaining most of the charachter or the Proacs. Very happy . |
Here is another link you all may find interesting. Eddy's article covered a good deal of the basics, but one thing he really didn't go into is how the amplifier interacts with the loudspeaker. Since SETs run zero feedback for the most part, this is pretty important! So here's the link:http://www.atma-sphere.com/Resources/Paradigms_in_Amplifier_Design.php Also FWIW, Eddy didn't cover the issue of distortion completely. One important thing he left out is that SETs have distortion that linearly decreases to measurable at lower power levels- this is the source of that 'inner detail' you read about in them so often. Most push pull amps don't do that; below a certain power level their distortion actually increases. But this is not true of **all** push pull amps; it is possible to build a push pull amp that shares the character of decreasing distortion to measurable just like SETs have. |