Hey gang, Once again, I turn to you for information. I'm currently running my speakers (Axiom M60 mains, VP-150 center, PSB 3LR surround) with a Parasound 1205a (Yammie 795a as pre-pro). I've also got a Parasound HCA1000 gathering dust in the basement, so I'm thinking I might want to try bi-amping my M60s with the 1205 (fifth channel for center), and use the 1000 to power the rears. Here's a couple of questions: 1. Is bi-amping the real deal? That is to say, will it likely produce a signifigant improvement? I understand the controversy surrounding bi-wiring speakers, but it's my impression that bi-amping involves less voodoo, and smoke and mirrors (apologies to all bi-wiring fans; I tried it and couldn't tell the diff, but that's just me). 2. According to this article from SoundStage, the "vertical" configuration is favourable. Correct? This, to my mind, makes perfect sense. Before doing a how-to Google search, I figured I'd use two channels to power each speaker, as in the "vertical" set-up (channels 1 and 2 powering left, 3 and 4 powering right, as opposed to the "standard" connection in which channels 1 and 2 power L&R tweeters, channels 3 and 4 power L&R woofers). Also, in the vertical config, does it make any difference which end of the cable from the pre is split? Precisely, do I need a Y-splitter (one male, two female) plugged into the pre-outs of my Yammie receiver thus using two cables to the amp, or can I just as well have the splitter (one female, two male) going into the amp, therefore using just one cable from the receiver? 3. This article suggests that the practice above is known as "passive" bi-amping, and is a waste of time. In order to acheive true benefits, the author insists on the disconnection of the the passive cross-overs in the speakers. And that's where I'm out; it all becomes too much for a bulb as dim as myself. If this cross-over business is truly required, then I'll just enjoy things in their current state. But I'm no different than anyone else on this board; always looking for an improvement... 4. Lastly, my M60 mains are rated to handle 250w. Does bi-amping double the power going to the speakers? At 140wpc, is the Parasound amp too much for the speakers? I'm thinking it's not, but you may know plenty that I don't. Thanks for any help you may offer, and cheers! DS.