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Old 29th January 2003, 04:51 AM   #1
diyAudio Member
Join Date: Jan 2003
Location: Bangkok
Question C1 and C2 in BoSoZ

Dear Gurus,

Will there be any problem if I replace C1 and C2 in BoSoZ circuit with 6.8 uF instead of 10uF.

Is there any impact on sound quality?

The reason being is that...it is a bit difficult to find 10uF film cap or any audio grade cap locally...

Has any one tried with different types/products? Which one is the best in your opinion?

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Old 29th January 2003, 05:00 AM   #2
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Join Date: Aug 2002
Location: Near to the Pacific Ocean
Just try the 6.8 uF.
Or 6.8 uF // 6.8 uF (parallel).

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Old 29th January 2003, 11:39 AM   #3
vossie is offline vossie  Israel
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Join Date: Oct 2002
Location: Cape Town
Default Output caps

Hi Ruangrit,

Try to stay at 10u or even go a bit bigger. If you have a look at the X-BOSOZ thread there have been words saying you get better low frequency reproduction by using higher values for these caps.

I might be wrong to apply the susy circuit info directly to the original BOSOZ by Mr Pass, but it's worth a try.

JdeV and I compared sound between two X-BOSOZs, the one with 10u non-polarised metal film caps and the other with 47u non-polarised radial electrolythics. The 47u X-BOSOZ definately was better at reproducing the low frequencies.

My advice - try and see what happens and let us know.

The brave might not live forever but the cautious never live at all!
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Old 29th January 2003, 03:06 PM   #4
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Join Date: Jan 2003
Location: Bangkok

Thanks a lot.

Maybe because of the characteristic of the low non-polar electrolytic cap that produces better low frequency...??

However, like you said, it worths to try..and I will try, yet, after I get the PSU heat problem resolved.

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