JC, sorry about my confusion. I guess I am not only half-deaf, but half-blind.
Thanks for explanation. Now I understand the difference. BUT, still wonder whether it is just a matter of avoiding impedance mismatch, or something more? I mean, I have never used pre-amp, let alone transformer or capacitor coupled. I know I have to hear for myself and I will someday, but what if the output of the source is high enough, there is not major impedance mismatch, and power amp is more than powerful enough?
My half-dead brain cells keep saying, "if there is no spec mismatch, job of driving speakers should be done by the power amp. Pre amp is for less competent power amps, or just for input selector or tone control which of course depends on one's preference." Please forgive me if "Pre-amp or no pre-amp" issue has been discussed many times here. If you could direct me to the thread, I will go there. Thanks again for your help. Ken
Thanks for explanation. Now I understand the difference. BUT, still wonder whether it is just a matter of avoiding impedance mismatch, or something more? I mean, I have never used pre-amp, let alone transformer or capacitor coupled. I know I have to hear for myself and I will someday, but what if the output of the source is high enough, there is not major impedance mismatch, and power amp is more than powerful enough?
My half-dead brain cells keep saying, "if there is no spec mismatch, job of driving speakers should be done by the power amp. Pre amp is for less competent power amps, or just for input selector or tone control which of course depends on one's preference." Please forgive me if "Pre-amp or no pre-amp" issue has been discussed many times here. If you could direct me to the thread, I will go there. Thanks again for your help. Ken