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Increasing Filter Capacitance
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Spica
Apr 10, 2010, 10:52:42 AM4/10/10
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I'd like to increase the filter capacitance of a 21 year old subwoofer amp from the
current two 10,000uf 75v caps to a pair of 20,000uf 75v caps. The current rectifier is
a Fagor FB2502. Do you think this rectifier can handle the increase or should I
upgrade it? Also, for reference, the amp uses a single power chip per side as
opposed to discrete xistors if that matters. Thanks.
current two 10,000uf 75v caps to a pair of 20,000uf 75v caps. The current rectifier is
a Fagor FB2502. Do you think this rectifier can handle the increase or should I
upgrade it? Also, for reference, the amp uses a single power chip per side as
opposed to discrete xistors if that matters. Thanks.
jwvm
Apr 10, 2010, 3:29:59 PM4/10/10
to
On Apr 10, 10:52=A0am, sp...@verizon.net (Spica) wrote:
> I'd like to increase the filter capacitance of a 21 year old subwoofer am=
p from the
> current two 10,000uf 75v caps to a pair of 20,000uf 75v caps. =A0
> I'd like to increase the filter capacitance of a 21 year old subwoofer am=
p from the
> current two 10,000uf 75v caps to a pair of 20,000uf 75v caps. =A0
Why?
> The current rectifier is
> a Fagor FB2502. =A0Do you think this rectifier can handle the increase or=
should I
> upgrade it? =A0Also, for reference, the amp uses a single power chip per =
side as
> opposed to discrete xistors if that matters. =A0Thanks.
The extra capacitance could cause an increased current surge when the
unit is turned on but the power transformer will probably still limit
the peak current to a safe value. If you are trying to boost the
output power, you could overheat the power transformer at high sound
levels with the extra capacitance.
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