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Old 16th January 2002, 07:49 PM   #1
doc is offline doc
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Join Date: Jan 2002
Location: ireland
Default headphones on speaker out

Help!!! I want to use my music fidelity A1 amp 20w/ch 8ohms speaker load as a headphone amp (HD590's) Can anyone tell me the correct way to do this without blowing up either amp or headphones?? Most eligant solution will be rewarded with a 'thankyou'
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Old 16th January 2002, 08:04 PM   #2
joensd is offline joensd  Germany
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Join Date: Dec 2001
Location: Germany
usually itīs done with a series resistor but i donīt know how to calculate that exactly.(in a grundig amp it was 560ohms/1W)
but thatīs definitely not a high-end solution.
for a better sound better build something with a good opamp(opa134...)

i wanna add a headphone jack in the same way
so iīd appreciate a hint for calculating the correct value for the resistor
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