Apologies for the slow response on these.
Quote:
Originally Posted by TheirThere
with your system, do people normally leave some or all of their stock speakers in the rear stage?
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Yes, absolutely. This is why:
https://integralaudio.com/other_file...20Speakers.pdf. TL;DR: you want to limit the volume and frequencies of rear speakers in a stereo setup. The money/power/etc are far better spent on the fronts. Hint: anyone selling you the same speakers for the fronts and rears/centers is....not doing the best for you.
Quote:
Originally Posted by hellokitty
How much does this system weigh?
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Total added weight vs the OEM system is 29lbs, 20 of that is the subwoofer. All of that extra weight is easily removed for tracking. We spend a LOT of time thinking about details that you don't see and that most people don't think about, like weight. Some examples:
-See those cutouts on the front side of the amp rack? Nothing passes thru them. They are there simply to remove weight. It's a bit more time on the laser for cutting, but it shaves off a few ounces and ounces add up. The amp rack design itself was analyzed with FEA to determine deflection rates and make sure we spec'd the sheet metal thickness correctly - strong enough with no wasted weight (or cost).
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-ARC supplies the amp with a thick heavy machined aluminum cover. Purely cosmetic. We changed it to a lighter cover, saved over a pound I think.
-Look at the wiring harness below. Different gauge wires are used based on current. Same as BMW does, we make sure we aren't wasting weight in wire. I'm always amused when I see competitors using giant cables carrying low current loads. Nothing but wasted weight and $$.
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-We're always seeking out new/better/lighter materials. To my knowledge we were the first to use EPVC for our machined adapters. It's basically foamed PVC. Acoustically well damped, strong, impervious to moisture, doesn't need to be painted (more $$ and weight), AND it's less than half the weight of acrylic.
-We're careful with our subwoofers and enclosures as well, especially since a) they are the heaviest component by far, and b) you just aren't going to get true sub bass performance without one. When we sourced our new subwoofer from ScanSpeak we were able to shave 7lbs off the woofer while still increasing performance. We design the enclosures to be stiff while keeping the fiberglass enclosure wall thickness to a minimum. That wide curved depression in the back of the F80 enclosure below is there as a stiffener - without it the walls would need to be thicker (and heavier).
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Just a few examples off the top of my head. FWIW, our new regular SoundstageDSP™ (as opposed to the SoundstageDSP™ Ultra above) will add zero weight to the vehicle, but that's without a subwoofer and it also won't be available for HK-equipped vehicles.