In Reply to: Looking for SET amp for my Altec speakers posted by catbert242000@yahoo.com on October 14, 2020 at 07:14:18:
My speakers are a similar efficiency and 30 watts works pretty well in most rooms as long as its clean power. There isn't a 30-watt SET that would do the job; SETs of that sort of power output tend to have poor bandwidth due to output transformer limitations.
One thing to keep in mind is that with SETs you really don't want to be driving them to full power if you want to really hear the best out of the amps! At higher power levels SETs make higher ordered harmonics which show up on the transients, causing them to sound 'dynamic'. But this is because the ear uses the higher ordered harmonics to sense sound pressure, so this is distortion masquerading as 'dynamics'. With a more efficient speaker this does not happen. But because of the ear's logarithmic character, to make the kind of power you'll need past 2 watts, 30 is a good place to start.
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- With that sort of efficiency you'll want 30 watts at least. - Ralph 09:54:37 10/21/20 (31)
- RE: With that sort of efficiency you'll want 30 watts at least. - RGA 19:03:37 10/23/20 (0)
- RE: With that sort of efficiency you'll want 30 watts at least. - Tre' 19:35:21 10/21/20 (29)
- RE: With that sort of efficiency you'll want 30 watts at least. - Ralph 09:15:25 10/22/20 (27)
- RE: With that sort of efficiency you'll want 30 watts at least. - Tre' 12:38:14 10/22/20 (26)
- Impedance matters a lot - Frihed89 02:21:51 10/23/20 (0)
- Not at low power - Ralph 12:42:35 10/22/20 (24)
- RE: Not at low power - Tre' 15:14:34 10/22/20 (23)
- you might find this interesting. - Tre' 15:32:10 10/22/20 (22)
- Link is broken nt - Ralph 09:06:00 10/23/20 (21)
- RE: Link is broken nt - Tre' 09:42:22 10/23/20 (20)
- Yikes! - Ralph 12:11:39 10/23/20 (19)
- RE: Yikes! - Tre' 12:18:56 10/23/20 (18)
- That really won't make any difference. - Ralph 12:22:52 10/23/20 (17)
- RE: That really won't make any difference. - Tre' 14:38:37 10/23/20 (16)
- Its not that I don't believe Harry - Ralph 15:18:20 10/23/20 (15)
- RE: Its not that I don't believe Harry - Tre' 17:07:09 10/23/20 (14)
- RE: Its not that I don't believe Harry - morricab 03:59:24 10/27/20 (10)
- Sad but true.... - Ivan303 09:05:03 10/27/20 (3)
- Yes- higher orders at only 80dB down will be audible as brightness and harshness. - Ralph 15:00:37 10/28/20 (2)
- Maybe explain why Bruce used Cy Brenneman's 845 amps to show... - Ivan303 16:15:03 10/28/20 (1)
- That's why you use horns! - Ralph 13:51:58 11/02/20 (0)
- RE: Its not that I don't believe Harry - Tre' 09:01:54 10/27/20 (5)
- RE: Its not that I don't believe Harry - morricab 12:35:48 10/29/20 (4)
- He did up to the 14th. - Tre' 13:24:09 10/26/20 (1)
- Any of the odd orders above the 5th are bad! - Ralph 14:06:43 10/26/20 (0)
- Yes. He didn't show the upper harmonics on the pentodes either, not by a long shot! nt - Ralph 11:58:28 10/26/20 (0)
- RE: CD, Vinyl, Watts, and Requiems - B. Scarpia 04:14:18 10/22/20 (0)