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"Hi-fi review is a complete shambles. The few magazines that do measure are capable of reprinting
the most frightening distortion spectra from amplifiers and actually call them good. "Objectivity"
got downgraded from "independent of who's doing the observing" to "not favouring particular
brands". For me personally the affair hit rock bottom when in 2009 two reviewers, one Dutch, one
British, independently remarked of the same amplifier (a reasonably priced product with exemplary
performance) that it sounded surprisingly musical for an amp with such low distortion. In the 21st
century audio engineers build equipment while actively avoiding two of the most powerful tools
available to the whole of science and engineering: measurement and error control. The damage to
the audio industry and its reputation in the wider engineering world will remain immeasurable until
we decide to take control."
This tells me that Putzey's is either not aware of or is disregrding what has been found out about human perception and distortion. That the kind of distortion and its PATTERN is far more important than its level. Naturally above a certain level it is coloring the sound but when the pattern is wrong it also colors the sound even if it is THOUGHT that it should not.
Geddes found no significant correlation between THD and IMD and sound quality (in fact it was slightly negative but did not meet 95% confidence).
What he doesn't realize is that the small residual from amps with tons of feedback WILL color the sound in ways that much higher levels of harmonically correct distortion will not. Must be frustrating to him to be fighting with nature that doesn't conform to his "We make it perfect so it must sound perfect and why can't people hear that...dammit!"
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Topic - Putzey's doesn't get it... - morricab 01:59:13 08/07/15 (93)
- May I Add... - Inmate51 23:53:09 08/26/15 (0)
- Have Geddes finding been pier-reviewed and duplicated? - Feanor 07:07:22 08/07/15 (91)
- RE: Have Geddes finding been pier-reviewed and duplicated? - morricab 07:26:17 08/07/15 (89)
- And he advocates using a cheap Pioneer receiver as an amp... - kuribo 07:42:28 08/07/15 (88)
- RE: And he advocates using a cheap Pioneer receiver as an amp... - Don Reid 17:17:05 08/07/15 (1)
- LOL...some may think so....nt - kuribo 17:23:32 08/07/15 (0)
- Since you can't answer him... - mkuller 14:46:01 08/07/15 (84)
- Some designers focus on... - E-Stat 10:47:59 08/09/15 (1)
- And some are clever enough to pay attention to both....nt - kuribo 12:13:19 08/09/15 (0)
- Well, one wonders how one can believe the results of his distortion studies, which were made - kuribo 15:37:03 08/07/15 (81)
- Just what I should have expected... - mkuller 17:59:25 08/07/15 (80)
- Not sure I understand what appears to be a contradiction.... - kuribo 18:41:07 08/07/15 (79)
- Speaking of contradictions.... - mkuller 09:43:23 08/08/15 (78)
- Distortions perhaps caused by amp/speaker interactions, etc... - kuribo 09:51:02 08/08/15 (77)
- RE: Distortion? - mkuller 10:12:02 08/08/15 (76)
- RE: Distortion? - kuribo 10:13:49 08/08/15 (75)
- LOL! Of course... - mkuller 10:21:14 08/08/15 (74)
- And I can post counterpoint comments and studies that show - kuribo 10:27:18 08/08/15 (73)
- Of course you can... - mkuller 10:35:04 08/08/15 (72)
- RE: Of course you can... - morricab 14:53:07 08/08/15 (69)
- RE: Why ....? - A.Wayne 05:05:41 08/09/15 (68)
- RE: Why ....? - morricab 14:07:32 08/09/15 (66)
- RE: Why ....? - Disbeliever 03:34:48 08/16/15 (0)
- RE: Why ....? Lol - A.Wayne 14:29:27 08/09/15 (64)
- RE: Why ....? Lol - morricab 15:43:00 08/09/15 (63)
- RE: Why ....? Lol , seems fair - A.Wayne 15:45:00 08/09/15 (62)
- RE: Why ....? Lol , seems fair - morricab 23:24:21 08/09/15 (61)
- RE: Why ....? Lol , seems fair - A.Wayne 10:07:28 08/10/15 (60)
- RE: Why ....? Lol , seems fair - A.Wayne 10:08:13 08/10/15 (59)
- RE: Why ....? Lol , seems fair - A.Wayne 10:08:45 08/10/15 (58)
- RE: Why ....? Lol , seems fair - A.Wayne 10:09:40 08/10/15 (57)
- RE: Why ....? Lol , seems fair - A.Wayne 10:10:41 08/10/15 (56)
- Further comparison... - kuribo 17:37:47 08/10/15 (0)
- RE: Airtight - A.Wayne 10:16:31 08/10/15 (54)
- RE: Airtight - morricab 00:28:15 08/11/15 (9)
- RE: Airtight - A.Wayne 06:36:50 08/11/15 (8)
- RE: Airtight - morricab 11:54:14 08/11/15 (7)
- RE: Airtight - A.Wayne 12:06:20 08/11/15 (6)
- RE: Airtight - morricab 01:01:36 08/12/15 (0)
- RE: Airtight VS VTL - A.Wayne 12:17:45 08/11/15 (4)
- RE: Airtight VS VTL - morricab 02:11:24 08/12/15 (3)
- RE: Airtight VS VTL - A.Wayne 05:33:40 08/12/15 (2)
- RE: Airtight VS VTL - morricab 08:33:28 08/12/15 (0)
- I guess the argument is "my distortion is better than your distortion" but - kuribo 06:35:58 08/12/15 (0)
- RE: Airtight - A.Wayne 10:17:07 08/10/15 (43)
- RE: Airtight - A.Wayne 10:18:09 08/10/15 (42)
- RE: Airtight - morricab 00:26:37 08/11/15 (40)
- RE: Airtight - Inmate51 07:34:00 08/12/15 (39)
- RE: Airtight - morricab 15:12:06 08/12/15 (38)
- RE: Airtight - A.Wayne 05:33:00 08/13/15 (37)
- RE: Airtight - morricab 08:37:07 08/13/15 (36)
- Hey Morricab - Inmate51 09:47:48 08/13/15 (35)
- RE: Hey Morricab - morricab 04:31:46 08/14/15 (33)
- RE: Hey Morricab - A.Wayne 12:12:57 08/14/15 (30)
- It also should be mentioned that any distortion which is below audibility matters not...so - kuribo 13:57:30 08/14/15 (0)
- RE: Hey Morricab - morricab 13:34:17 08/14/15 (28)
- RE: Hey Morricab - A.Wayne 17:32:25 08/14/15 (27)
- RE: Hey Morricab - morricab 01:13:57 08/15/15 (26)
- RE: Hey Morricab, Charles Hansen weighs in - A.Wayne 17:17:12 08/15/15 (2)
- RE: Hey Morricab, Charles Hansen weighs in - Inmate51 02:50:09 08/16/15 (0)
- RE: Hey Morricab, Charles Hansen weighs in - morricab 00:37:57 08/16/15 (0)
- RE: Hey Morricab we are OK .... - A.Wayne 06:19:04 08/15/15 (22)
- RE: Hey Morricab we are OK .... - morricab 00:41:52 08/16/15 (21)
- RE: Hey Morricab , Wilson doesn't get it - A.Wayne 05:10:19 08/18/15 (19)
- RE: Hey Morricab , Wilson doesn't get it - morricab 05:57:30 08/18/15 (16)
- RE: Hey Morricab , Wilson doesn't get it - A.Wayne 06:57:45 08/18/15 (0)
- RE: Hey Morricab , Wilson doesn't get it - A.Wayne 06:54:25 08/18/15 (14)
- RE: Hey Morricab , Wilson doesn't get it - morricab 04:19:01 08/19/15 (13)
- RE: Hey Morricab , Wilson doesn't get it - A.Wayne 05:10:11 08/19/15 (12)
- RE: Hey Morricab , Wilson doesn't get it - morricab 13:38:42 08/19/15 (11)
- RE: Hey Morricab , Wilson doesn't get it - Disbeliever 23:26:05 08/19/15 (10)
- RE: Hey Morricab , Wilson doesn't get it - morricab 01:32:47 08/20/15 (9)
- RE: Hey Morricab , Wilson doesn't get it - Disbeliever 03:14:34 08/20/15 (0)
- RE: Hey Morricab , Wilson doesn't get it - A.Wayne 02:45:57 08/20/15 (7)
- RE: Hey Morricab , Wilson doesn't get it - morricab 06:52:16 08/20/15 (6)
- RE: Hey Morricab , Wilson doesn't get it - A.Wayne 12:17:54 08/22/15 (5)
- RE: Hey Morricab , Wilson doesn't get it - morricab 14:51:25 08/22/15 (4)
- RE: Ever tried ...? - A.Wayne 13:50:55 08/24/15 (3)
- RE: Ever tried ...? - morricab 02:25:23 08/25/15 (2)
- RE: Ever tried ...? Mola Mola - A.Wayne 02:56:52 08/29/15 (0)
- RE: Ever tried ...? - A.Wayne 07:09:22 08/26/15 (0)
- RE: Hey Morricab , Wilson doesn't get it - A.Wayne 05:11:23 08/18/15 (1)
- RE: Hey Morricab , Wilson doesn't get it - morricab 05:56:27 08/18/15 (0)
- RE: FM Acoustics is pretty Pricey - A.Wayne 05:54:16 08/16/15 (0)
- RE: Hey Morricab - Inmate51 05:55:06 08/14/15 (1)
- RE: Hey Morricab - morricab 13:39:56 08/14/15 (0)
- RE: Hey Morricab - Inmate51 15:11:35 08/13/15 (0)
- For comparison.... - kuribo 17:09:00 08/10/15 (0)
- Amen..We should also be able to discuss without a non sequitur as the basis for criticism. nt - kuribo 08:13:40 08/09/15 (0)
- I didn't say there are amps with no distortion. I said there are amps with no audible distortion...nt - kuribo 10:50:11 08/08/15 (1)
- More to the point... - kuribo 10:54:03 08/08/15 (0)
- RE: And he advocates using a cheap Pioneer receiver as an amp... - morricab 08:04:56 08/07/15 (0)
- No doubt large amounts of feedback with an amp with high open loop distortion - kuribo 07:13:53 08/07/15 (0)