I had already checked out Aric. Unfortunately, he doesn’t have any SET integrateds over 10wpc and his prices are much higher than I am willing to spend. Thanks for responding.
Considering A 20-40 Watt Stereo SET Amp
I just got over a 16 day illness (not Covid) where it was touch and go for a few days. I am thinking of rewarding myself with a 20-40 watt stereo SET amp. The speakers I will use are a pair of the new JBL L100 Classic speakers that I bought at the end of 2020. The speakers are rated at 4 ohms @90db sensitivity.
Presently, I am using a McIntosh integrated and I do not listen loud. The meters on the Mac usually sit between .20 and 2 watts at its loudest. I have not started looking yet but I do know I want something with 1 pair of outputs so I can use my SVS powered subwoofer with it. I would also need 3 high level inputs. I don’t want to break the bank as this would be a secondary amp to put into rotation as the mood strikes me.
I do not want a flea powered amp so it has to be 20-40 watts and under 4 grand new. Used would be even better. I am hoping I can be steered in the right direction so I can start my research. I do not want to have to buy other components to accommodate the amp. Source components are a McIntosh SACD player, McIntosh FM tuner and a Sony HAP-Z1ES music player. Nordost interconnects and Canare speaker cables, Shunyata power cords and a Furutech power conditioner round out the system. The amp must be stereo, no monoblocks please. 99% of my listening will be through my Mac FM tuner. The system is also on its own dedicated 20-amp circuit.
- ...
- 47 posts total
True SETs (single-ended triode) amps cannot do 20-40 watts unless they’re big transmitter tubes such as the 211 or 845 and they use over 1,100 volts. An SEP (single ended pentode), running in ultra-linear or triode mode can get 20 watts per channel however. A good example is at the link below and can be driven directly from a DAC, CDP, etc. Volume control can be added as can additional inputs for right around your budget: https://aricaudio.com/products.php?product=SPRKT88120 Prices are not higher for what you get, considering prices for an Audio Note 211 amplifier start at $20k, Air Tight's 211 is $10K, Thomas Mayer's is $27K, and my Super 211 SET is $11,800- so comparable in price. Since a 300B is incapable of 20-40 watts, and 2A3 has even less power, 45 half that, this basically leaves pentode/tetrode single-ended amplifiers for the kind of power you’re looking for unless you go push-pull.
Best regards, Aric |
@stereo5 You're welcome, and thank you as well. Yes, as I had mentioned above the Super KT88/120 can be outfitted with additional inputs and a volume control and when used with 6SL7 Input tubes, can be driven to full output directly from a source. I can add a set of RCA line level outputs as well to allow driving a powered subwoofer. I'm not sure if you need remote capability for volume as well? If you'd like, please contact me using the Contact Us (through my website) and let me know what options/features you may like and I can try my best to help.
Best regards Aric |
If you want to seriously check out SET amps… consider a SET headphone amp. You do not need the power you need for your speakers. You can check out the sound and decide if this is the direction you want to go. There are other ways of getting more power and midrange bloom in a main system if you decide this is the way you want to go.
Typically you can put together an equivalent system at 1/10th the cost on a headphone system to test the concept. I assembled an incredible 300B headphone system for $15K while my equivalent sounding main system cost about $150K. |
- 47 posts total