4th order for x10?

[tmac93 0]

never heard or owned a 4th order, but id like to spend weekend building one for my sundown x10. Can anyone help me out with this?

maybe help me with some designs or advice. i have it in a 1.6 cube slot ported box tuned at 34hz. sealed off from trunk firing into cabin. for my tastes it is not tuned low enough, i was going to snatch everything out and go with a 2 cube box at 30hz. but ive been reading about 4th orders and im really interested in them now. would a 4th be ok for a daily with this sub? goes in dodge charger so i have plenty of trunk space, and can provide max deminisons if needed.

 

i also have the sub specs if it helps. ive read to go with the 2:1 ratio with these boxes, if correct how big should i go with sealed side? and how big with ported and the tuning? i listen to mostly decaf music, all i really care about is the 25-38hz range.

 

FS - 27.9hz

QES - 0.43

QMS - 4.7

QTS - 0.39

SD - 366cm^2

VAS - 19.47L

BL - 21.67

MMS - 317g

CMS - 102um/n

SENS - 81.66db

 

30mm xmax at (70% BL)

[lithium 358]

just build the larger, lower tuned ported enclosure. a bandpass box (a vented enclosure is also 4th order) wont gain you any output for your purposes, it will just take up more space. 

[SpeakerBoy 64]

Bandpass is meant to provide an even response over a small range. It's not magically louder.

Stick with ported.

Edited August 15, 2014 by SpeakerBoy

[///M5 2,833]

You already have it in a 4th order...

[tmac93 0]

Thanks for clearing that up. Another quick question when designing port is it better to go with a typical slot port or an labyrinth port? Or is there no difference?

[Fi 4 life 0]

I try to have the least amount of bends in mine, the length has to do with tuning. Have you thought about aero ports?

[///M5 2,833]

Thanks for clearing that up. Another quick question when designing port is it better to go with a typical slot port or an labyrinth port? Or is there no difference?

Slot = labyrinth

Less turns is always better

[tmac93 0]

Well i guess this explains why im not happy with the current box, something just sounds off. Its like a maze inside the box. Port is on right side, and it goes straight back, turns 90degrees left then leads to a 180degree turn right then back to another 90degree left turn. tPort length was at about 45"

[lithium 358]

what does sundown list as the recommended enclosure sizes? 

 

what are your amp settings? 

[tmac93 0]

Idk i cant find any recommendations. Ive been searching for awhile, ive kinda been going with what other people recommend. Nothing on sundowns website, or on google so far.

Amp settings: gain is a little less than halfway. Bassboost all the way down, subsonic at about 23 or 24. Lowpass is maybe at 45, phase at 0

[tmac93 0]

Idk i cant find any recommendations. Ive been searching for awhile, ive kinda been going with what other people recommend. Nothing on sundowns website, or on google so far.

Amp settings: gain is a little less than halfway. Bassboost all the way down, subsonic at about 23 or 24. Lowpass is maybe at 45, phase at 0

All stock electrical, 0gauge power and ground. Ive having to use loudness on headunit to really make a difference. If i turn it off subs barely moving and gain has to go way up, so i use loudness and bass level all the way up then set my amp.

[lithium 358]

are you sure the coils are wired correctly? how did you go about setting the lpf, 45 is really low?  you should not need loudness settings 

[tmac93 0]

If i turn loudness off its like i almost loose all my sound, and the gain has to go up nearly 3/4. And i dont listen to anything above 40hz so i keep it low around 45-50hz. And sub is wired to 1ohm, postitive on one coil hooked to positive on opposite coil then from there to the amp, same with negative wires.