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Posted: Tue May 03, 2005 1:09 am
by spkrman
8 volt preout doesnt mean it sends 8 volts all day :)
Posted: Tue May 03, 2005 8:40 am
by GlassWolf
yup in the festiva I'd do the same thing with the heartbeat at the start of DSotM.
you wouldn't hear a thing, but the steering wheel would jump up and down about 2", and you'd feel the tightness in your chest.. then you'd start to hear it. I like that CD a lot.. great remastering on the MFSL release.. very clean tracks.
Posted: Tue May 03, 2005 8:57 am
by Fishy
Yes I know, and I could probably attenuate each set of preouts just to make sure. Thats an option when setting the h/u's crossovers. Still why would PPI add an attenuation switch later if it wasn't necessary?
In the pdf for the newer 456 its says with regard to attenuation, "push this switch in to accept high level RCA inputs(up to 8v)..."
Kinda scary.
The other problem with using that xover is that it would negate the use of time alignment on some of the outputs. If I planned on using the PPI's sub outs, time alignment would be totally useless as its a non fading out which basically sums the front and left channels. With time alignment I'd be sending two signals to my sub amp that had different delays. Maybe this wouldn't make much difference with a sub app, but I'd think the sum of these two signals would "muddy" the bass output some. Then there's the fact that I'm using a mono amp which sums the LEFT and RIGHT channels. Delay differences there would make things even worse.
If I plan on using time alignment it looks like I will only be able to take advantage of a fraction of that xover's capabilities.
Still, it looks cool so I think I'll leave it in there.
:)
-Fishy