In Reply to: RE: we agree on the bit about the OPT at least. posted by Ralph on September 10, 2021 at 15:02:38:
The distortion products are always there regardless of the power...they are just not visible below the noise floor. What you mean is that they rise above the noise floor with > 20-25% power (maybe...again depends on the specific amp). Does this mean they are now audible? Not necessarily. The sensitivity to higher order harmonics is dependent on the SPL level and so just because they rise above the noise floor doesn't make them immediately audible. If the rise is linear with power increase then they could easily remain inaudible as the low orders are also rising and will provide masking. The problem comes if the high order harmonics are rising at a faster rate than the lower order harmonics thus disrupting the pattern that was set at low power.
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Follow Ups
- RE: we agree on the bit about the OPT at least. - morricab 10/12/2107:21:40 10/12/21 (19)
- RE: we agree on the bit about the OPT at least. - Ralph 10:15:51 10/12/21 (18)
- RE: we agree on the bit about the OPT at least. - morricab 11:27:21 10/12/21 (17)
- Yeah, I get that- seen it in spades. - Ralph 12:04:36 10/12/21 (16)
- RE: Yeah, I get that- seen it in spades. - morricab 05:17:04 10/18/21 (15)
- RE: Yeah, I get that- seen it in spades. - rivervalley817 11:32:23 10/18/21 (0)
- RE: Yeah, I get that- seen it in spades. - tube wrangler 11:13:06 10/18/21 (0)
- RE: Yeah, I get that- seen it in spades. - Ralph 09:54:58 10/18/21 (12)
- RE: Yeah, I get that- seen it in spades. - morricab 05:43:08 10/20/21 (10)
- RE: Yeah, I get that- seen it in spades. - tube wrangler 18:17:44 10/20/21 (5)
- Class D gain - Ralph 11:06:50 10/22/21 (4)
- RE: Class D gain - tube wrangler 12:49:39 10/23/21 (3)
- There are zero feedback class D amps- some are getting very good comments too. nt - Ralph 09:36:31 10/25/21 (0)
- RE: Class D gain - morricab 02:59:11 10/25/21 (1)
- RE: Class D gain - tube wrangler 12:57:48 10/25/21 (0)
- RE: Yeah, I get that- seen it in spades. - rivervalley817 14:22:27 10/20/21 (0)
- BTW, thanks for your posts! nt - Ralph 09:07:37 10/20/21 (1)
- Same to you...good discussion! nt - morricab 14:03:43 10/20/21 (0)
- Yes!! - Ralph 09:05:40 10/20/21 (0)
- RE: Yeah, I get that- seen it in spades. - tube wrangler 11:27:06 10/18/21 (0)