About The C1 & C2 of Zen V5

Peleus · 30th July 2003, 12:22 PM

The value of C1 and C2 in Zen V5 is 47uF, and one friend of mine question the value that " will these high value limit the low frequency?" "Can I instead with film type capacitors with 4.7uF?"

I can't answer these question!

Please help me and any comments will be welcome!

Thanks!

joensd · 30th July 2003, 02:01 PM

According to the formula Xc=1/(2*pi*f*C) the frequency depending resistance of C1 and C2 gets lower with higher capacitance value.
That´s why most input capacitors of audio amps have relatively high value : To pass low frequencies with greater amplitude.
But IMO 47uF is plenty and you should get away with 4.7uF.

Jens

Nelson Pass · 30th July 2003, 05:23 PM

4.7 uF will work, but you will see a rolloff around 5 Hz or so.

Peleus · 30th July 2003, 11:32 PM

Thanks Joensd and Nelson Pass!

But I still feel confused about the reply of NP! If we will see a rolloff about 5 Hz, it seem OK! No one can here the quite low sound, right!

Is there any mistake?

30th July 2003, 12:22 PM	#1
Peleus diyAudio Member Join Date: Feb 2003 Location: Taipei, Taiwan	About The C1 & C2 of Zen V5 The value of C1 and C2 in Zen V5 is 47uF, and one friend of mine question the value that " will these high value limit the low frequency?" "Can I instead with film type capacitors with 4.7uF?" I can't answer these question! Please help me and any comments will be welcome! Thanks!

30th July 2003, 11:32 PM	#4
Peleus diyAudio Member Join Date: Feb 2003 Location: Taipei, Taiwan	thanks ! Thanks Joensd and Nelson Pass! But I still feel confused about the reply of NP! If we will see a rolloff about 5 Hz, it seem OK! No one can here the quite low sound, right! Is there any mistake?

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30th July 2003, 02:01 PM	#2
joensd diyAudio Member Join Date: Dec 2001 Location: Germany	According to the formula Xc=1/(2pif*C) the frequency depending resistance of C1 and C2 gets lower with higher capacitance value. That´s why most input capacitors of audio amps have relatively high value : To pass low frequencies with greater amplitude. But IMO 47uF is plenty and you should get away with 4.7uF. Jens

30th July 2003, 05:23 PM	#3
Nelson Pass The one and only Join Date: Mar 2001	4.7 uF will work, but you will see a rolloff around 5 Hz or so.

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