Rear Fill Frequency Preference

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Tony F - 05 Sep 2005 09:14 GMT

By complete accident when I configured my current setup I only sent the
midrange frequencies to my amp that drives my real fill speakers (5.25 Focal
coaxials). I've always had my rear fills playing the entire frequency
spectrum, besides using a HP filter of around 100Hz or so. So now my rear
fills only see 630Hz to 3.15kHz. This has the effect of pulling only the
midrange soundstage towards the back of the car...in this case it puts it
square in the front seats with me while the higher and lower frequenices
stay up front (more higher than lower). This sounds EXTREMELY nice because
most vocals now literally drop in my lap while the instruments still play
near the windshield. It makes the artist's voice so much more defined and
focused and separate from the rest of the music. Before, when I had the
rear fills running full range, it pulled EVERYTHING back - which wasn't a
bad thing - but I have to say that this "mistake" was one of the best
mistakes I've made regarding my stereo.

So anyway. I've heard some people comment over the years that they prefer
their rear fill speakers to be band-passed similar to how I have mine now
and I'm wondering, if any of you are reading this now, is my experience
similar to yours? Is my new experience with my rear fill an accurate
description of what others have experienced? I mean, it doesn't change what
I think and hear, but I was just wondering. It's always nice to discover
something by yourself, even if you're not the first one to do so.

Signature

2001 Nissan Maxima SE Anniversary Edition
Clarion DRZ9255 Head Unit, Phoenix Gold ZX475ti, ZX450 and Xenon X1200.1
Amplifiers, Dynaudio System 360 Tri-Amped In Front and Focal 130HCs For Rear
Fill, Image Dynamics IDMAX10 D4 v.3 Sub

2001 Chevy S10 ZR2
Pioneer DEH-P9600MP Head Unit, Phoenix Gold Ti500.4 Amp, Focal 165HC
Speakers & Image Dynamics ID8 D4 v.3 Sub

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MZ - 05 Sep 2005 17:07 GMT

My experiences are somewhat similar, though I usually haven't experienced
such a dramatic shift in the soundstage unless I run full range. Typically,
I low-pass it around 1kHz or so (still plenty of voice content here though)
and high-pass it much lower so that it supplements the midbass drivers up
front. When I'm really crankin', I find that the midbass is the first to
suffer because of the size (power handling) of the drivers relative to the
amount of power they're fed. I take the two-sets-are-better-than-one
approach.

> By complete accident when I configured my current setup I only sent the
> midrange frequencies to my amp that drives my real fill speakers (5.25 Focal
[quoted text clipped - 18 lines]
> I think and hear, but I was just wondering. It's always nice to discover
> something by yourself, even if you're not the first one to do so.

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