Rank: Member
Groups: Customer, Beta Testers Joined: 10/25/2006(UTC) Posts: 7 Location: Klamath Falls Oregon
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I received my REV C Layout Version 1.2 boards last week and noticed the note for R2. "R2 value is better lower < 12K." The resistor supplied is the original value of 33K. I can't recall any discussion in the DIY audio forum about the effects of changing values of R2.(Yes, I read all 2000+ replies) What "is better" with a lower value of R2? What is the suggested range for R2?
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Rank: Administration
Groups: Administration, Customer Joined: 10/24/2006(UTC) Posts: 3,979 Location: Nashville, TN
Thanks: 25 times Was thanked: 89 time(s) in 83 post(s)
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rmcferon wrote:I received my REV C Layout Version 1.2 boards last week and noticed the note for R2. "R2 value is better lower < 12K." The resistor supplied is the original value of 33K. I can't recall any discussion in the DIY audio forum about the effects of changing values of R2.(Yes, I read all 2000+ replies) What "is better" with a lower value of R2? What is the suggested range for R2? 33K will work just fine, but the amp does indeed measure better with a lower value there. I use 4.7K there, but many use 10K. Here is a link to a note by Nelson Pass on the effect of the mute resistor on distortion at low level output. http://www.diyaudio.com/...postid=845710#post845710We supply the 33K because that is what Mauro used. Perhaps we will change the kit for the future. Cheers! Russ Edited by user Saturday, November 4, 2006 8:56:17 AM(UTC)
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Rank: Member
Groups: Customer, Beta Testers Joined: 10/31/2006(UTC) Posts: 19
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Thanks for that! I was about to ask the same. Luckily I have many 10K/1W Riken-Ohm (perhaps noisy but nice noise ;-) )
Cheers, M |
Obsessive-compulsive builder. |
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