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Old 10th December 2012, 08:49 PM   #841
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Quote:
Originally Posted by atupi View Post
Finally i have some good speakers (XTZ 99.26) now and i can say the alternate config of RC (390R-220uf) sounds much better, better imaging and details. Maybe can be fatigueing on some "bright" speakers but not on my ribbon tweeters.
Thanks for reporting

I've read that such speakers are a bit difficult to drive, the FE drives them well?
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Old 10th December 2012, 08:55 PM   #842
atupi is offline atupi  Romania
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Until a certain point when FE starts to produce some cracking sound in the tweeters, the same behaviour experienced with Spedors SA-1 even harder to drive.
I already shared this experiences that i had with FE and i dont know if it's the Spike protection or not.
Maybe i will find some time to resolder the old MyREFC to make a comparision.

Anyway for regular and even a bit loud listening levels in my apartment MyRef is enough powerful.

I have already broke some audiophile hearts here in Bucharest with MyRef FE and in a direct comparition on some Xavian 250 owner of an Anthem 225 said that he likes a lot dinamics and refinement of MyREF over his Anthem.

Last edited by atupi; 10th December 2012 at 09:05 PM.
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Old 10th December 2012, 09:04 PM   #843
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atupi, what did you settle on - a bare pot or something with gain?
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Old 10th December 2012, 09:10 PM   #844
atupi is offline atupi  Romania
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No gain, only PGA2310>DCB1>MyREF

See also here my preamp: Yet another Volume controlers and source selections post #757
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Old 11th December 2012, 08:22 AM   #845
AndrewT is offline AndrewT  Scotland
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Quote:
Originally Posted by atupi View Post
................... i can say the alternate config of RC (390R-220uf) sounds much better, better imaging and details..................
I've gone back to post801. No post found.
Can you link to where you bring up discussion of the RC?
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Old 11th December 2012, 08:51 AM   #846
atupi is offline atupi  Romania
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i don't understand your question Andrew.
The discussion about alternate RC config appared since latest pcb layout where you can install 390R and 220uf in old way and alternate to make comparitions.

On my previous low quality speakers it was hard to hear the difference.
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Old 11th December 2012, 09:12 AM   #847
AndrewT is offline AndrewT  Scotland
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Which post or posts was this discussed?
You have not posted since post801.
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Old 11th December 2012, 09:55 AM   #848
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Hi Andrew,

see this post from the beta thread.
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Old 11th December 2012, 10:20 AM   #849
AndrewT is offline AndrewT  Scotland
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post757 discussing keeping the resistors on the +IN Pin and -IN Pin as close to the PINs as possible.
And the following posts?
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Old 11th December 2012, 10:34 AM   #850
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this part of post 757:

Quote:
Originally Posted by KSTR View Post
1) C9 is quite good an electrostatic antenna ==> exchange positions of R10 and C9 and minimize trace length on LM318 -IN (Pin3).
Basically you mount R10 in C9 position and C9 in R10 positions so to have C9 bounded to 0V ground.
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