[Impedance Rise/Box rise]

thanks guys.

[Impedance Rise/Box rise]

Thanks guys.

I didnt really go into full explanation on how various enclosure characteristics effect impedance. There wasnt much time for it and as you can tell, I mentioned that for daily music, its not important to know most of the time.

[Impedance Rise/Box rise]

I laid out my thoughts on it in the vid.

Does anyone have anything to add or subtract to the subject?

[Safe to store batts on the ground?]

I store my batteries upside down on a metal table.

[XP and D series.]

D series has what is known as "Starting Plates"

Meaning they can give high current in short time.

The XP series has a large amount of lead but not starting plates, so it should not be used under the hood but can give long reserve.

The D series still has a great reserve capacity and is still great for daily systems and supplemental batteries.

The XP though is slightly less money and can get you a small percentage more reserve.

[a break down of a sub?]

yeah, hmm so the motor is the magnet?

If you are asking that, building a woofer would be quite difficult for you.

Woofers, well good woofers, are carefully designed to have parts that compliment eachother and fit together with the proper clearances and tolerances.

You can buy parts from fixmyspeaker.com but I would suggest first getting a cheaper woofer, cut it apart and buy a drop in recone and recone it according to a step by step instructions.

[COATING A BOX]

depends on your tastes.

A lot of guys like the bed liner look, and it seals very well.

Or you can use a bit of body filler to smooth it up and paint it.

Or you can wrap in vinyl.

Probably the easiest is bedliner.

[COATING A BOX]

do you mean the outside for aesthetics? Or do you mean to seal is from leaks?

[i about fell on my face...is this right???]

yes it is hard to get to, seems like you couldnt get to it and a ton of stuff has to be taken apart and that requires labor, which incurs labor charges.

Thats just how things work man.

My labor rate was $65 per hour, and That job could take over an hour.

[Plexiglass box SQL?]

[wtb high out put alternator for grand cherokee laredo?????]

Got 270a for $440 or 320a for $540

Mechman

[So this guy is trying to scam]

stop emailing the guy back

[Alternator upgrade: How big of an H.O. Alt do I need for my system?]

What you should do, is run a nice AGM batt up front like an XS D1200 and a small supplemental in the back like a XP750.

That will be good for 3500w systems. Or you can go to a XP950 or larger or add more later. But that setup, with the 220a alternator would run very nice with 0awg wire all around. And can be had for your budget of $800

[Alternator upgrade: How big of an H.O. Alt do I need for my system?]

Looks like I got a 220a for that truck for 5 beans.

And yes, the largest you can get but it also depends on your batteries. The alt and batts work together.

The more power you want, the more batts you need, the more batts you have, the larger the alt that you need.

[db Drag Rules Question]

Unless there is additional steel used to thicken it or strengthen it, it will be OK.

Of course in SS classes it wouldnt matter anyway. But for lower classes, If the steel is the same as it was before, go for it.

[1500-2000 watt amp]

PMd you about a Skar amp

[Electric car?]

Ive done Hybrids, they have a standard 12v starting batt as stated above.

But a full electric is different.

The main batt is high voltage and you do not want to tap into it.

They do have a 12v feed for standard car electronics and accessories and you can use this for low power items.

I wanted to use a Chevy Volt as a demo car and be the first to do 150+ in an electric car, but I cannot afford one.

But I will tell you that it can be done, and how I was going to to it was to put in a 2nd battery bank of XS Power batteries and just charge em up as often as I got the chance.

If there was some rotational mechanism in the car like an AC that I could attach to, Id do an alternator, but Ive never seen inside one.

[subs with a big basket and big excrusion wanted (broken or missing parts i will take too)]

There is a "Want To Buy" section.

Look around the forum and enjoy its beautiful organization.

[American Ricers got Nothing on Japan (LULZ)]

Why?

Because if it doesnt look like it can transform into a giant flying robot, it aint cool.

I just want to know whats up with the Pikachu tail looking exhaust pipes.

[Can an Extreme SPL vehicle compress a balloon inside the sealed chamber]

[Can an Extreme SPL vehicle compress a balloon inside the sealed chamber]

I think it pops on compression. The only way to really test this is to put a small balloon in a sealed box for a 15" woofer, tape it to a side and a camera and a small flash light do a sweep test. The sealedness of the box will eliminate the potential for "air traffic" coming into or exiting the box. or use a box that is sealed with a plexiglass.

That test wont help you determine whether the pop happens on the compression or vacuum. You would need a high speed camera.

[Can an Extreme SPL vehicle compress a balloon inside the sealed chamber]

Here, at 1:28

[Can an Extreme SPL vehicle compress a balloon inside the sealed chamber]

Yes balloons pop in an extreme car, But they pop due to vacuum. It makes the pressure inside the balloon blow the balloon outwards.

And as far as outlawing vacuum chambers, they actually outlawed the use of compressed air or gas.

I believe the Gates bronco had nitrogen at one point and would vacuum seal the doors and pump the cabin with gas.

[Sundown FTMFW]

awesome, thanks for posting

I got this little diddy too

[OVERSTOCK SALE / 270 AMP ECOTEC ALTERNATORS]

Excellent, just as I am about to do my HHR build