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Old 10th October 2010, 04:29 PM   #881
zlab is offline zlab  Hong Kong
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Quote:
Originally Posted by bigaudioscotto View Post
I am thinking of changing input caps
on V 1.1b do you guys have any suggestions
of what to use,I have got to tame the highs
they are just to bright. what are the values of these caps.
Hum... you may try solen SCR MKP type (not the MK II) that will make the highs a bit soft.
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Old 10th October 2010, 04:48 PM   #882
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Quote:
Originally Posted by zlab View Post
Hum... you may try solen SCR MKP type (not the MK II) that will make the highs a bit soft.
Do you know the value on these caps
are they 2.2uf or 3.3uf or what.
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Old 10th October 2010, 05:03 PM   #883
udailey is offline udailey  United States
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Input caps of 2.2uf will pass almost all frequencies above DC. Certainly all frequencies you want your subwoofer to reproduce.
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Old 10th October 2010, 06:18 PM   #884
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Quote:
Originally Posted by udailey View Post
Input caps of 2.2uf will pass almost all frequencies above DC. Certainly all frequencies you want your subwoofer to reproduce.
Do you know if 2.2uf is original value used on V1.1b.
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Old 10th October 2010, 07:00 PM   #885
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Quote:
Originally Posted by bigaudioscotto View Post
Do you know if 2.2uf is original value used on V1.1b.
I will answer my own question,
they are 3.3uf for input caps.
are there any output coupling caps on this unit.
I cannot seem to identify them.
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Old 10th October 2010, 07:46 PM   #886
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Quote:
Originally Posted by alkasar View Post
these one are quite common over here and fit well on the terminals. Sorry, metric system 6mm wide, 3.8mm inside. cable up to 2.5mm^2. The yellow version allows for larger cables. I remove the blue plastic and solder cable.
Click the image to open in full size.
I'm doing exactly *the same*
Bye!
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Old 10th October 2010, 07:56 PM   #887
Frenkel is offline Frenkel  Netherlands
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2 New 48 volt smps are ordert, i think the problems will be solved than.
Thanks anyway

Quote:
Originally Posted by hifimediy View Post
Hi, increasing the caps on PSU is good for transformer usage. But it's not means the larger the better.
For T3, if you have a big transformer, less caps will work good too. may be you can try to measure the DC voltage on caps to see if it's stable or not, and increase the caps if necessary.
Some times large caps will kill transformer too, or make it very unstable when power on.
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Old 10th October 2010, 10:54 PM   #888
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Default Mods for 2050

Have any of you guys
Done Mods on V1.1b.
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Old 11th October 2010, 04:08 AM   #889
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Quote:
Originally Posted by bigaudioscotto View Post
I will answer my own question,
they are 3.3uf for input caps.
are there any output coupling caps on this unit.
I cannot seem to identify them.
There is no coupling capacitor for these boards.
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Old 11th October 2010, 01:58 PM   #890
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Default repacing power caps on 2050

Is it possible to replace the 2 power caps with say
30 or 50 volt 10,000 uf or higher. on V1.1b maybe more bass punch
and possibly try to soften the highs.


Scott
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