First shot at a 4th order design

[siucsaluki11]

To me the one in red i would imagine would sound better. But not as loud. That is with bigger sealed chambers. I like my lows, and from 43 Hz on down the yellow one has less output. But how will the system work with the car? That is the question, i have no idea where it will peak, and how this graph will end up sounding in my car.

[uhoh_45]

am i seeing 3.9 sealed?

hard reading the little writing

Edited February 19, 2010 by uhoh_45

[tiller1]

To me the one in red i would imagine would sound better. But not as loud. That is with bigger sealed chambers. I like my lows, and from 43 Hz on down the yellow one has less output. But how will the system work with the car? That is the question, i have no idea where it will peak, and how this graph will end up sounding in my car.

what box calulator are you using?

[dwright27]

what box calulator are you using?

tiems 2

id listen to uhoh 45

[siucsaluki11]

x2 you want smaller sealed chambers and a bigger ported area roughly 3-1 ratio (ported to sealed) and your by looking at your port length it looks like your trying to tune it low which is what you dont want

In my 2nd post, red is tuned to 65 yellow is to 60, much bigger bandwith, it doesnt peak really, plays pretty flat. Which is kinda what i was goin for, equally loud at almost all frequencies. Ill do some more playing with BBP after work tomorrow

[uhoh_45]

and whats your sealed to ported specs?

[dwright27]

In my 2nd post, red is tuned to 65 yellow is to 60, much bigger bandwith, it doesnt peak really, plays pretty flat. Which is kinda what i was goin for, equally loud at almost all frequencies. Ill do some more playing with BBP after work tomorrow

might have an impedance spike on the lower frequencies though.

and yea id tune to around 60 if it were me.