Jump to content
Sundown Audio

Recommended Posts

okay so ive been working on a few designs i wanna do a wall behind my second row seats so a "C" pillar walls. I know 4th orders have more more potential to get louder as far as spl goes. I've seen a few people run the e series subs in 4th orders but some say they are no suited for a 4th order.

Would a 4th order work for the e series

info-

subs: 4 sundown e15's

vehicle: 2004 toyota sequoia

location in vehicle : behind second row, c pilar

box type: walled 4th order or ported wall

amp: ta1.3000d

This is a design concept.

415s4thorderwall_zps49fbe640.png

415s4thorderwall2_zps2afd0573.png

Link to comment
Share on other sites

I wanted to look up their T/S specs to check if they will work in a 4th but sundows page won't work right.

On 11/20/2012 at 8:54 PM, AMI CUSTOMS said:

Turned mine up today at a light, guy next to me his steering wheel started moving and he looked over at me like I was a magician lol.

On 5/9/2012 at 8:45 PM, skittlesRgood said:

fuck the plating. look at what the main metal used is. you could buy unicorn blood plated terminals but if its just covering up dog shit, whats the point

On 4/10/2013 at 12:26 PM, mrd6 said:

I'll admit, half way through sanding that fiberglass in the rain and cold while I was all itchy I was definitely starting to question why i was doing this haha

  • Soon To Be
  • '04 Ford Escape
  • US Alternator 280A Hairpin
  • D4800 Under the Hood
  • (6) XP3000's in Rear
  • 1/0 SHCA & XS Power 4 runs to back
  • TORK2 kit from Tony @ CE Auto Supply
  • Pioneer DEH-80PRS
  • DD AW6.5 (2) per door
  • *Tweeter Unkown*
  • DD SS4a & C3d
  • (2) SCV4000 @ .5Ohm
  • (2) 15" Sundown Zv5
Link to comment
Share on other sites

RE: 3.8ohm Fs: 29.4 hz Qes: 0.57 Qms: 6.39 Qts: 0.52 Le: 1.83mH Vas: 147.7L BL: 15.6NA Cms: 0.15MM/N Mms: 195.9grams Sens: n/a 1w/1m Xmax: 12mm one-way linear RMS: 500 watts

I can't fix my font after copy/pasting that so fuck it.

What makes a driver suitable for a 4th order or not is it's EBP.


EBP = 1/Qes * Fs

Now that you have you EBP, you know what your speaker is suitable for!

If the EBP is 100 or more, it’s best for ported boxes. (And 6th order bandpass)

If the EBP is 50 or less, it’s best for sealed boxes. (And 4th order bandpass)

If the EBP is between 50 & 100, it will work in either style boxes. (And either style bandpass)

EBP is 51.57.

Will work fine for a 4th.


And you should tune that a little higher. The tuning point for 4th orders differs from typical vented boxes. The tuning point is actually the low-pass point. It will be attenuating frequencies above tuning.

I say tune it around 45hz.

Edited by Raptorman
  • Like (+1 Rep) 1

1996 GMC Sonoma
Four Fi BTL Neo 18's In 2:1 6th Order Bandpass
2 Ampere 5k's @ .5

TEAM FI
TEAM #LITHIUMCANTDEMO

 

On 10/20/2013 at 0:37 AM, KillaCam said:

Fucking with a Prius driver is like making fun of a disabled kid. Pussies.

Link to comment
Share on other sites

RE: 3.8ohm Fs: 29.4 hz Qes: 0.57 Qms: 6.39 Qts: 0.52 Le: 1.83mH Vas: 147.7L BL: 15.6NA Cms: 0.15MM/N Mms: 195.9grams Sens: n/a 1w/1m Xmax: 12mm one-way linear RMS: 500 watts[/size]

I can't fix my font after copy/pasting that so fuck it.

What makes a driver suitable for a 4th order or not is it's EBP.

EBP = 1/Qes * Fs

Now that you have you EBP, you know what your speaker is suitable for!

If the EBP is 100 or more, it’s best for ported boxes. (And 6th order bandpass)

If the EBP is 50 or less, it’s best for sealed boxes. (And 4th order bandpass)

If the EBP is between 50 & 100, it will work in either style boxes. (And either style bandpass)

EBP is 51.57.

Will work fine for a 4th.

And you should tune that a little higher. The tuning point for 4th orders differs from typical vented boxes. The tuning point is actually the low-pass point. It will be attenuating frequencies above tuning.

I say tune it around 45hz.

Which box do you think I would have better output from. I've decided I wanna go with a port above my seats so I don't have to have them folded down all the time. This is the best picture I could get of my second row seat. I would like to have the port above the seats. Would that be a good idea or would that all depend on the box type

D7341BFB-FED5-41C5-9522-B6B6CC07B35B_zps

Link to comment
Share on other sites

The 4th would be best for putting the port above the seats. But loading may get weird for the woofers. Can't say for sure.

If you laid the woofers down horizontally. They would load a lot better. Because if you kept the woofers how they are now but had the port at the top, then the top two woofers would load into the port and the bottom two wouldn't.

1996 GMC Sonoma
Four Fi BTL Neo 18's In 2:1 6th Order Bandpass
2 Ampere 5k's @ .5

TEAM FI
TEAM #LITHIUMCANTDEMO

 

On 10/20/2013 at 0:37 AM, KillaCam said:

Fucking with a Prius driver is like making fun of a disabled kid. Pussies.

Link to comment
Share on other sites

E-series arn't suited for 4th orders? obviously whoever says that has no CLUE what they are talking about...

#1: The t/s parameters say otherwise

#2: I have heard several set ups in person using them in a 4th, and they sound awesome.

2011 Ford Ranger Sport 4.0 v6

2 sundown audio prototype nsv4 15s

crossfire 4k wired to 0.4 ohm

15 banks of maxwell 3.0 caps @ 18v

triple alts (x2 us alt 250's, x1 singer 320)

153 at 23hz

Link to comment
Share on other sites

Good thing we've already covered that.

1996 GMC Sonoma
Four Fi BTL Neo 18's In 2:1 6th Order Bandpass
2 Ampere 5k's @ .5

TEAM FI
TEAM #LITHIUMCANTDEMO

 

On 10/20/2013 at 0:37 AM, KillaCam said:

Fucking with a Prius driver is like making fun of a disabled kid. Pussies.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Who's Online   0 Members, 0 Anonymous, 232 Guests (See full list)

    • There are no registered users currently online
×
×
  • Create New...