Box Help

[Villeza1 10+ year member]

God Dammit Sic...

you did it again.

ingine53, listen to the guy for he has been right up till now.

 

[ingine53 10+ year member]

have i not been listening to him?

 

[Villeza1 10+ year member]

I was just reassuring you just in case you were doubting his advice.

 

[SicAudio 5,000+ posts]

if i do the L715 as cheap as i can i may be able to do them for 310 shipped each only cuz u r in AZ and it cuts shipping way down

 

[SicAudio 5,000+ posts]

I have done a ton of Kickers in my 20 plus years they are a sub a know very very well lolz

 

[Villeza1 10+ year member]

I have done a ton of Kickers in my 20 plus years they are a sub a know very very well lolz

So do I, had 4 cvx 15's in a 23.75ft^3 box b4 displacement on 2 crunch gp3000d pro's. Was a badass setup but I wanted louder.

 

[ingine53 10+ year member]

http://cgi.ebay.com/MB-Quart-DSC2000-1D-Class-D-2000W-Monoblock-Car-Amp-NEW_W0QQitemZ290385206936QQcmdZViewItemQQptZCar_Amplifiers?hash=item439c4e9e98#ht_1800wt_1167

http://cgi.ebay.com/ebaymotors/NEW-KICKER-15-08S15L72-SOLOBARIC-L7-CAR-SUB-S15L7-2_W0QQcmdZViewItemQQhashZitem518edf8d82QQitemZ350289366402QQptZCarQ5fSubwoofersQ5fEnclosures#ht_4277wt_1167

Thanks for all your help. found everything a little cheaper on ebay

 

[SicAudio 5,000+ posts]

they replaced the gp3k for this new 2010 year //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif but they made it even better and dubbed it the mighty BXI 3010D !!!!

 

[SicAudio 5,000+ posts]

yup it is cheaper and no warranty sonic buys from my oakland warehouse //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[ingine53 10+ year member]

If I were to use the amp you recommended, should I get the 4 ohm or 2 ohm kicker subs? And how would I wire them?

 

[Villeza1 10+ year member]

they replaced the gp3k for this new 2010 year //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif but they made it even better and dubbed it the mighty BXI 3010D !!!!

Oh really, I didnt know that. what's gonna happen to the Vpower GP 3000d?

 

[SicAudio 5,000+ posts]

dual 4 wire to 1 ohm

 

[SicAudio 5,000+ posts]

Oh really, I didnt know that. what's gonna happen to the Vpower GP 3000d?

it became the brutus 3010d //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[PV Audio 5,000+ posts]

What do you mean after rise?

Take a 4 ohm speaker and put it on the ground. Hook up some measuring equipment and play a tone through it at a frequency not really near its resonant frequency and it should read around 4 ohms. Now, put it in a box and do the same thing. It won't read around 4 ohms; it will be slightly higher. Why? A speaker has what is called impedance: anything that resists movement is called impedance. A resistor has impedance, as do inductors and capacitors. Your speaker has 3 types of impedance: electrical impedance, aka, what the voice coil rating is (4 ohms maybe), mechanical impedance, aka, how the moving parts of the speaker limit its movement and finally the third which is called radiating impedance which is a function of how well the speaker can move due to the air (a small 2" speaker has a far lower radiating impedance than a large 21" subwoofer just as it's easier to wave a toothpick quickly than it is an oar). When you put a speaker in an enclosure, that changes the radiating impedance.

These changes are dependent on the size and tuning of the enclosure. Putting a speaker in an enclosure with a higher impedance than free air will cause the impedance to rise at certain frequencies. I'm trying to keep this as simple as possible, so if it doesn't make sense, please ask and I'll clarify. Think about it like this: it's easy to compress the air that you're sitting in right now with your hand, but try to compress a bag filled with air. Once that pressure increases, the impedance increases. Increase the size of the bag, and the impedance drops.

Please note that this is an extremely rough and not entirely scientifically nor mathematically accurate description, but it's just to help you understand what impedance rise means. I could give you a fleshed out response, but you wouldn't understand what I was talking about since you're just starting in audio //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif