I guess I mean the latter configuration, i.e. driving the woofers and tweeters separately. But I say that without ever having done it before, so maybe what I really want is the former (monoblock) setup. My understanding was that my single STA-9 lends itself well to coupling with a second unit, which can enhance the audio quality, esp. at lower volumes. But, to repeat, I have no direct experience with either configuration, so I would like to try and find out more from users who *have* tried and compared them both.
I also have a hum problem whenever I use the balanced Mjolnir-to-NuPrime connection. Have the same problem via unbalanced connection, too, but less severe; so I'd also be curious to know whether a second amp might reduce the hum still further.
Thanks very much, left channel, for the link to that very informative thread. From what I've read there thus far, some of it is rather abstruse for me, but the specific technical differences between both of these two-amp configurations is precisely what I would like to figure out. I will re-read the more relevant posts again (some discuss STA-10 & other amps, rather than STA-9) and then try to post more specific questions there.