I like the chassis!
Quote:
Originally Posted by Refugee
When I bade up the cabling for MP3/CD to a valve amplifier I put the loading resistors for the 30 ohm in the jack plugs at the amplifier end of the cable. It is common practice to match a cable run at the destination.
|
Yes I agree to match at the remote the end... But that's only if the cable has 30Ω characteristic impedance and also it's electrically 'long.' Assuming that it isn't, and also that the MP3/CD output you're using is the headphone output, why would you deliberately load this down? Almost certainly it'll just be a complementary NPN/PNP emitter-follower pair, with beefy enough devices to drive 30Ω without dying... why not give them an easier life by letting them just feed into a near open-circuit, and avoid any crossover distortion at the same time?