Good bass... small box?

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11-04-2004, 12:07 PM

#11

Oziyak

50 Watt CAFz'r

Thread Starter

Join Date: Nov 2004

Posts: 69

Quote:

Originally posted by Hardwrkr:
It depends greatly on what exactly you want your system to do.

Do you want it to be as loud as possible without losing too much trunk or are you just looking to accurately cover the lower octaves in your sound?

yeah... I'm really just looking for some extra bass.... not something that will make my car fall apart.. or wake up my grandma

I was thinking of going with alpine type R's, thought I think they're kinda big

11-04-2004, 01:42 PM

#12

Paul Niwranski

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Posts: n/a

MTX 5500 8". Get a pair and mount them ISO in a 0.4cuft box tuned to 40hz. Have fun with the port

11-04-2004, 01:43 PM

#13

Paul Niwranski

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^ hell you could do it with a pair of 5500 10s too......same box [img]tongue.gif[/img]

11-04-2004, 01:44 PM

#14

coulter

1000 Watt CAFz'r

Join Date: Jun 2004

Posts: 1,024

Quote:

Originally posted by maltesechicken:
1.4 cubes isn't small . . .
If you are willing to give up that much space, go with an Infinity Kappa Perfect 10" and port it. It has a high Sensitivity (SPL - 94 db) and it has very deep low-end extension.

How small are you looking?

its small enough, i was just saying that because i have the same type of car, and it does have a tiny *** trunk, and you can put that size of box in and still have lots of room left.

11-04-2004, 02:27 PM

#15

Hardwrkr

2000 Watt CAFz'r

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Join Date: Mar 2003

Posts: 3,542

What does the rest of your system consist of and what is your budget?

11-04-2004, 06:24 PM

#16

Dave MacKinnon

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Dukk, you're mean!! That port would be nuts!!!

11-04-2004, 06:33 PM

#17

maltesechicken

2000 Watt CAFz'r

Join Date: Jan 2001

Posts: 2,026

Quote:

Originally posted by Jmac:
1.4 Yeah, high sensitivity at 0.5 meters with 2.83 volts in car at 40 Hz

0.5 meters instead of 1 meter ... Theoretical 6 dB increase
2.83 volts (~2 watts @ 4 ohms) instead of 1 watt ... Theoretical 3 dB increase
In car @ 40 Hz ... Significant increase from vehicle transfer function

Anyone can claim high numbers when they cheat heavily ...

Using standard testing methods (1 watt from 1 meter away in an open environment), the Kappa Perfect 10.1 is only ~84 dB

Yoink! Where did you get that information? I simpy assumed that Infinity measured their stuff from 1m away! I wasn't convinced that they would use 2 v instead of 2.83 so that doesn't surprise me, but the .5 m is surprising!

11-04-2004, 08:08 PM

#18

Jmac

500 Watt CAFz'r

Join Date: Jan 2003

Posts: 575

Err, sorry, my mistake, it is 1 meter, but it's still 2.83 volts (2 watts) instead of 1 watt ... and it's still in car instead of in an open environment ... And it's still 84 dB instead of 94 dB

SPL (1W/1M) = 112 + 10*log(9.64*10^(-10)*Fs^3*Vas/Qes)
SPL (1W/1M) = 112 + 10*log(9.64*10^(-10)*28.35^3*32.13/.44)
SPL (1W/1M) = 112 + 10*log(0.0016039627)
SPL (1W/1M) = 112 + 10*(-2.794805727)
SPL (1W/1M) = 112 - 27.94805727
SPL (1W/1M) = 84.05194273 dB

http://www.adireaudio.com/Files/Tech...lculations.pdf