Axiom Home Page Forums General Discussion Advice from Axiom Owners Axiom VP Series Quandaries……

Well, then just keep your eyes on the horizon.

And no, it wasn't a sales inquiry... I never recommend that anybody ship anything irreplaceable!

I find certain brands of PC DVD disk drives & recorders to be very finicky and it seems to be more the recorders than the disks. For instance, my PC at home will write to almost any -r brand it seems except for a certain model of Maxwell. However, the Maxwells work fine on my work laptop but it's even more finicky and refuses to record to seemingly anything but Verbatim and that specific Maxwell.

Obviously, when manufacturers settled on a standard for writable DVDs, they should have spent a little more time actually standardizing.

You should try gen-you-wine Maxell discs. They'll probably be more reliable than those Chinese knockoff Maxwells you've been buying at the dollar store.

Remember, I tease because I love!

Really OT now, does anyone remember about 20-25 years ago when there were tons of knock-off electronics? Like Pannasonix Boomboxes, or Sonny radios?

Obviously, I was referring to the coffee company's DVDs. The caffeine makes them burn faster.

I remember National Lampoon's Panasauage boomboxes. Their slogan was "Just slightly ahead of the law."

Sorry to interrupt the current off topic conversation….. I have a question.

When you mount a center speaker over the screen and one under, I have heard three different general opinions regarding this arrangement. 1) It’s a good idea as it anchors dialogue to the center of the screen 2) It’s not a good idea because it does not anchor the dialogue to the center of the screen 3) It’s not a good idea because of comb filtering.

I don’t even know what comb filtering is so I have no idea if that argument has merit. Can someone explain to me the theory behind the pro’s / con’s of this particular center speaker arrangement?

Mike I've always thought of comb filtering as being the same as cancellation due to one signal being fed through two different speakers, which evidently *should* be the case of using two centers like you are suggesting. I don't have any known cancellation issues with the upper and lower centers of our setup and surly haven't had any issues with off center screen dialog, in our application the two centers center punch the dialog squarely onto the center of the screen, but of course YMMV. I personally believe tweaking the angle of the speakers so that they are aimed directly to the listening position makes a lot of difference whether the dialog gets planted to the center of the screen or not.

If comb filtering and cancellation are not the same then maybe somebody can enlighten us?

Just curious, aren't you using two M22s as center channels? If so, maybe you could somehow place one above your screen and one below as an experiment ... even if they block the screne you may still get a good idea of how a two center application like that may sound.

BTW ... The little missus just left for a couple of days so I'll certainly throw the 100 on the bottom of the TV and give it a good workout for you and Rick, I'll report back to you guys a little later on this afternoon.

Comb filtering is selective canceling. As Alan has pointed out a few times, this happens with any setup with multiple speakers, much less any setup with multiple speakers with multiple drivers.

If you want to avoid comb filtering, use one speaker with a single full range driver in it. See how ya like it...

Mike, since you have two M22s, you're already experiencing the horror of comb filtering.

Mike, I've been reading some old threads on AVS and have captured some notes, I will try to add them this evening. In general, most of the complaints talk about sibilence or you hear a lot of Ssssss in multichannel music using the 150. The issue of having multiple tweeters spread out like the current 150, older models had a different alignment. No other mfg does this in a center, which caused comb filtering and other issues. Mainly I see how people say it just does not match the same sonic signature as the other Axiom speakers. You always hear about the front 3 should match, well a lot of people say the VP series matches none of the other Axiom speakers which affects the timber matching. I will see what I can add from my notes, however, I want to be cautious not to bring up old issues that have been resolved with V2 and other updates over the last few years.

I could only find it in spanish, but still awesome

http://www.youtube.com/watch?v=LdGZs8b0Ee8

EDIT: I have been paying a bit more attention, and I can't say I notice any Sssss sounds sounding odd. Maybe I am not sensitive to it.