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Creating a center channel on a Harmon Kardon A300 tube amp.?
I've owned a Harmon Kardon A300 tube amp for a long while now, but it, naturally, only has a left and a right channel -- No center channel, it's from the 1960s. I have a great woofer, but the woofer itself only takes one channel, of course. I have it set to get all the bass from the right channel, but the problem here is that that merely creates a channel bias and really kind of puts the fidelity off on the range. I'm aware that I'd blow the tubes if I were to try mixing both channels just by linking the wires, so I want to know if there's some kind of circuit I could try, something that links both channels into a single "center" channel without risking the tube amp. If there is one, please tell me (I have some knowledge of electronics, if you can link me a schematic of some 'mixer'). My amp's absolutely incredible and I'd like to get the absolute most out of it, as an audiophile.
You don't really need a center channel, because stereo imaging from the right and left channels basically recreate all the center channel as if it was there. harmon kardon does a good job in their amplifiers, and they didn't include for a reason. you don't need it. its not mandatory. I prefer no center channel cause it takes away sometimes if you are not careful.
and subwoofers are supposed to create low low bass, to where you can't tell there is a bias from left or right channels. you're not supposed to be able to tell, and the majority of music has the bass region as mono, to get the most from speakers, and because bass doesn't need to be stereo, because the human ear cannot tell the difference of frequencies in the bass region. that is why alot of sub class D amplifiers are mono and bridged, and why MP3's are recorded in joint stereo instead of stereo. try getting an RCA adapter to the input of the amplifier or splitter and have 2 inputs to 1 input cable, and that will solve your problem too. and you could get a separate mixer, but you are putting powered speaker level inputs on a line level device. unless you wanna put some resistors in the pathway and rewire the signal to be low level then you can. But tube amps you are not supposed to increase the signal, if anything you are supposed to lessen the ohms. you'll have at least a couple hundred ohms, so I would say just use if for what is was built for the way it is. it will perform it's best that way.
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