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Old 10th September 2004, 06:23 AM   #21
lumanauw is offline lumanauw  Indonesia
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Hi, PMA

Quote:
According to a large number of our listening tests there is an audible difference between the same stage with and without error correction
Could you describe what sonic difference between one amp without error correction and the same amp with error correction (especially Hawksford type)?
Is it more audible in bass or midrange or treble?
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Old 11th September 2004, 07:54 AM   #22
ppl is offline ppl  United States
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This must be in the Air I also have been recently playing with These ideas see attached
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File Type: pdf dynobias schematic.pdf (15.3 KB, 1199 views)
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Old 11th September 2004, 08:06 AM   #23
peranders is offline peranders  Sweden
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New error correction amp
ppl, your pdf seems to be corrupted.
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Old 11th September 2004, 11:46 AM   #24
Steven is offline Steven  Netherlands
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I did not experience problems loading the image in Acrobat Reader 6.0.

Steven
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The Analog Art shows no sign of yielding to the Dodo's fate. The emergence and maturation of monolithic processing finesse has perhaps lagged a bit behind the growth of the Binary Business. But whereas digital precision is forever bounded by bits, there is no limit excepting Universal Hiss to the ultimate accuracy and functional variety of simple analog circuits. - Barry Gilbert, 1973
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Old 11th September 2004, 05:28 PM   #25
PMA is offline PMA  Europe
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Quote:
Originally posted by lumanauw

Could you describe what sonic difference between one amp without error correction and the same amp with error correction (especially Hawksford type)?
Is it more audible in bass or midrange or treble?
Well - I do not prefer speaking about midrange, treble etc. The biggest difference is in smoothness, liquidity of sound of the circuit with error correction. Also better in musical instruments resolution/definition.
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Old 11th September 2004, 05:36 PM   #26
PMA is offline PMA  Europe
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Quote:
Originally posted by ppl
This must be in the Air I also have been recently playing with These ideas see attached
Looks like interesting circuit idea. Have you already tried it?
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Old 12th September 2004, 02:02 AM   #27
lumanauw is offline lumanauw  Indonesia
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Hi, PMA,
Thanks for the explenation.
Non feedback power amp is usually notorious for the bass. It dont have control. Does matching non feedback amp with EC will be perfect?
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Old 12th September 2004, 02:32 AM   #28
thanh is offline thanh  Viet Nam
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Old 12th September 2004, 02:37 PM   #29
PMA is offline PMA  Europe
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I made 3 component value changes, because the circuit had been collapsing when overloaded.
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Old 13th September 2004, 03:19 PM   #30
thanh is offline thanh  Viet Nam
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PMA! about distortion? I have just simulated hawsford's error correction. It has a improvement at 20khz input signal, 38mV 2nd -> 1.6mV
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