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In Reply to: Mistake? posted by Gordon Rankin on July 12, 2006 at 07:17:30:
Gordon,
Now that is something you and I can really agree on 100%!And I offer another 100% - no usage of opamps in an audio signal path - nowhere!
Thoughts on that blunt statement?
And regarding using a traffo for "I/V" conversion - I have two problems:
1/ Most times it is done with a low (100R) load on the DAC and the traffo used for a voltage gain, which i consider missing the point. If it's to be used - then feed the DAC into the low Z side of the traffo directly, and put the load R on the secondary,using it as a current operated device - which is what it is - yes?
2/ It's claimed that the traffo acts as a low pass filter to bandwidth limit any out of band noise from the digital system. Yes it does - but how?
**WARNING - VERY UN SCIENTIFIC TYPE OF STATEMENT FOLLOWING**
I have no science to back this up - but surely if it's HF FILTERING because the magnetic particles simply cannot swop ststes fast enough to pass the HF noise, having them in such a STRESSFUL CONDITION (CONFUSED?) - does this not also limit their ability to carry required microdynamic information within the audio band?
I know that if things are happening just too fast around me I can get very overwhelmed/confused and make bad decisions, should we expect better from tiny magnetic domains with (hopefully) much less inherent computing/reasoning power than a intelligent human?
Allen
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Follow Ups
- My question is why even use feedback? - Allen Wright 00:47:09 07/13/06 (0)
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