Krell KSA-100S System soft-start resistor - diyAudio
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Old 9th October 2011, 01:05 PM   #1
maikl 5 is offline maikl 5  Russian Federation
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Default Krell KSA-100S System soft-start resistor

I have the amplifier on-board soft-start resistors installed large brown. When you run the amp they start to warm up and warm up constantly, until the power is turned on. They are very hot. Is this normal?Click the image to open in full size.
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Old 20th December 2011, 04:07 PM   #2
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That is quite normal. Many Engineers view this as a design defect, where the high temperate of these 700 Ohm Power resistors causes heat damage to the other parts nearby namely the 470uf 100V caps (X4) and the two Power OMRON relays and Capacitor (in between).
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Old 27th December 2011, 04:56 PM   #3
maikl 5 is offline maikl 5  Russian Federation
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Thanks for the info, relays and capacitors I look like new.
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