Jump to content
Second Skin Audio

6th order bandpass ratios?


dylan117

Recommended Posts

  • Replies 28
  • Created
  • Last Reply

Throw "ratio" out the window. (for the most part)

Go for the ratio that gives you the proper port tunings, port areas, port lengths, and chamber volumes. 

Rear tuned low, small port area, smaller volume. Front tuned high, tuned double the rear tuning, large port area, bigger volume.

I say for the most part because I've found that anything below 1.5:1 is in most cases not an optimal enclosure, and the box starts to get very cramped and it gets tough to lay everything out efficiently. 

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

Low tuning, smaller volume @Raptorman? Is that right? Thought low tuning would have a larger volume. Simulations on WinISD seem to favor a large volume for the low side, but i dont have a sickkk low tuned sixth like yourself, either :-P

Chevy Sonic Wall (4) 15's on 10k Build Log

https://www.stevemeadedesigns.com/board/topic/209412-2015-chevy-sonicwall4-15s10klithiumlarge-case-hairpin-us-alts/

(4) Fi SP4 15's | (2) Ampere 5Ks | Active! | Arc KS600.2 & KS125.2mini | CDT Silk Domes | Silver Flute 8s | 240Ah JY | US Alts

Jeep Wrangler JK (4) 8's in a 4th Order Build Log

https://www.stevemeadedesigns.com/board/topic/209841-shadow-2016-jeep-wrangler-jk4th-order4-8sdc-35klarge-case-hairpin-us-alts/

IG @walledsonic

Link to comment
Share on other sites

It's right.

And pay ZERO attention to the graphs in winisd or any other program. They are utterly useless. All you should use winisd for is vent mach and tuning.

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

Thanks for the confirmation and tip. Ive been toying with a small 6th for my wife's car but havent started building yet.  

Chevy Sonic Wall (4) 15's on 10k Build Log

https://www.stevemeadedesigns.com/board/topic/209412-2015-chevy-sonicwall4-15s10klithiumlarge-case-hairpin-us-alts/

(4) Fi SP4 15's | (2) Ampere 5Ks | Active! | Arc KS600.2 & KS125.2mini | CDT Silk Domes | Silver Flute 8s | 240Ah JY | US Alts

Jeep Wrangler JK (4) 8's in a 4th Order Build Log

https://www.stevemeadedesigns.com/board/topic/209841-shadow-2016-jeep-wrangler-jk4th-order4-8sdc-35klarge-case-hairpin-us-alts/

IG @walledsonic

Link to comment
Share on other sites

Its important to differentiate between series-tuned and parallel-tuned 6th order designs.  Series-tuned and parallel-tuned are VERY different beasts.  

WinISD only models parallel-tuned boxes and is useless for series-tuned.  With a parallel-tuned box usually the low-tuned side is larger, its the opposite with series-tuned, as Raptorman said.  

"Nothing prevents people from knowing the truth more than the belief they already know it."
"Making bass is easy, making music is the hard part."

Builds:

U7qkMTL.jpg  LgPgE9w.jpg  Od2G3u1.jpg  xMyLoO1.jpg  9pAlXUK.jpg

Link to comment
Share on other sites

*facepalm*.  Forgot Raptorman's setup was series tuned.  Thanks for chiming in.

Chevy Sonic Wall (4) 15's on 10k Build Log

https://www.stevemeadedesigns.com/board/topic/209412-2015-chevy-sonicwall4-15s10klithiumlarge-case-hairpin-us-alts/

(4) Fi SP4 15's | (2) Ampere 5Ks | Active! | Arc KS600.2 & KS125.2mini | CDT Silk Domes | Silver Flute 8s | 240Ah JY | US Alts

Jeep Wrangler JK (4) 8's in a 4th Order Build Log

https://www.stevemeadedesigns.com/board/topic/209841-shadow-2016-jeep-wrangler-jk4th-order4-8sdc-35klarge-case-hairpin-us-alts/

IG @walledsonic

Link to comment
Share on other sites

For car audio, you will want to work with series. Parallel doesn't fit in very well for us IMO. And series is much easier to get right.

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

1 hour ago, Raptorman said:

For car audio, you will want to work with series. Parallel doesn't fit in very well for us IMO. And series is much easier to get right.

There have been a couple parallel tuned that I really like

But with that being said I have built 3 different series tuned and they all seem to play just fine. I think that I will stick to 4ths tho. Easier and just as much output in my opinion

 

1349713160_rte.png
Link to comment
Share on other sites

3 hours ago, WalledSonic said:

Thanks for the confirmation and tip. Ive been toying with a small 6th for my wife's car but havent started building yet.  

A "small" 6th order ...... phrase just sounds funny lol. Space eating mothers ...

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Who's Online   1 Member, 0 Anonymous, 269 Guests (See full list)




×
×
  • Create New...