In Reply to: Re: Cary 300 SEI with HUM in Noise Floor posted by Paul Joppa on March 11, 2007 at 15:12:07:
I am not sure about that model, but I could have sworn the cary uses a 240 ohm resistor on the output to nullify any hum from the transformer. But it appears in this case that the output resistor is simply not there or was not installed in the 1st place. The only issue with raising the output impedance is that the bass would lose control and sound rubbery. Also, there would be no damping applied to the headphones, thus relying upon the headphone itself to be very well self damped, which in my experience, most headphones aren't.
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Follow Ups
- Re: Cary 300 SEI with HUM in Noise Floor - recstar24 15:43:05 03/12/07 (1)
- Re: Cary 300 SEI with HUM in Noise Floor - Paul Joppa 21:59:31 03/12/07 (0)