8th order triple reflex bandpass.. Help please! - Car Audio Classifieds!
Car Audio Classifieds!  

Go Back   Car Audio Classifieds! > Enclosures, Fabrication & Sound Deadening > Enclosure Discussion & Design Construction Help

Enclosure Discussion & Design Construction Help Have questions about enclosure design neeed some help thoughout your build, ask here.


Notices

Closed Thread
 
LinkBack Thread Tools Display Modes
  #1  
Old 04-12-2011, 12:31 AM
Old skool junkie's Avatar
DTD
 
Activity Longevity
0/20 18/20
Today Posts
0/11 ssssss712
Location: Columbus, OH
Age: 37
Thanks: 1
Thanked 2 Times in 2 Posts
iTrader: (22)
Feedback Score: 22 reviews
Default 8th order triple reflex bandpass.. Help please!

Okay, so I've been dying to try out some new (well, new to me) types of boxes. I've done the usual; sealed, ported, 4th & 6th order, and a few more difficult ones like tapered quarter wave tubes and stuff like that - with much success.

I'm interested in information (no links please, I've already scoured the interwebz) on an eighth order triple reflex enclosure. My buddy here locally built one for a pair of tang band 5.25's and I was downright baffled with their performance - on 200 watts. Needless to say, he doesn't want to share his secret . Any of my caco buddies wanna help a brotha out?

This is basically what I want to know about:



Is there a "rule of thumb" on volumes, tuning, port placement/size, etc? I'd love to build log one of these for a variety of different smaller (>8") woofers I have laying around

Thanks in advance guys/gals!
__________________

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


SQL?? One or the other folks, make up your mind already!

Don: Surfer, you are a really well known SPL box builder - how do you make a box sound REALLY loud?
Surfer: You taketh the cardboard paper towel roll, you cutteth said roll longways, you tapeth said cardboard to the boxeth.
Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 04-12-2011, 12:51 AM
jonnyv713's Avatar
Elite Member
 
Activity Longevity
0/20 18/20
Today Posts
0/11 sssss1090
Location: Elk Point, SD
Thanks: 16
Thanked 9 Times in 9 Posts
iTrader: (18)
Feedback Score: 18 reviews
Default

Looks different. I am interested in learning about this too. Help us!
__________________

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Quick reply to this message
  #3  
Old 04-12-2011, 12:53 AM
Novicaine's Avatar
CACO Late Night Crew
 
Activity Longevity
0/20 17/20
Today Posts
0/11 sssss6135
Location: Porterville, CA
Thanks: 728
Thanked 192 Times in 161 Posts
iTrader: (27)
Feedback Score: 27 reviews
Default

All I can say is ask at diyaudio forum...I did a few of them before and didn't care for them for caraudio boxes. It takes multiple atempts of experimenting to do them right. All I could get was a pretty loud but bad group delay sound.

Last edited by Novicaine; 04-12-2011 at 12:57 AM.
Quick reply to this message
 
  #4  
Old 04-12-2011, 01:00 AM
Old skool junkie's Avatar
DTD
 
Activity Longevity
0/20 18/20
Today Posts
0/11 ssssss712
Location: Columbus, OH
Age: 37
Thanks: 1
Thanked 2 Times in 2 Posts
iTrader: (22)
Feedback Score: 22 reviews
Default

Quote:
Originally Posted by Huricain3 View Post
All I can say is ask at diyaudio forum...I did a few of them before and didn't care for them for caraudio boxes. It takes multiple atempts of experimenting to do them right. All I could get was a pretty loud but crap group delay sound.
^^Thanks for the lead good sir!

I will say this much: he took said box out of his trunk and hooked it up to his ht receiver with nothing else but a little bs tweeter... omg it was sexx.. Soooo versatile.

Now while I agree it wasn't entirely "ideal" for ca use, it sure surprised the sh!t outta me when he popped his trunk
__________________

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


SQL?? One or the other folks, make up your mind already!

Don: Surfer, you are a really well known SPL box builder - how do you make a box sound REALLY loud?
Surfer: You taketh the cardboard paper towel roll, you cutteth said roll longways, you tapeth said cardboard to the boxeth.
Quick reply to this message
  #5  
Old 04-12-2011, 01:03 AM
Novicaine's Avatar
CACO Late Night Crew
 
Activity Longevity
0/20 17/20
Today Posts
0/11 sssss6135
Location: Porterville, CA
Thanks: 728
Thanked 192 Times in 161 Posts
iTrader: (27)
Feedback Score: 27 reviews
Default

Btw I meant diyaudio not diyma, just to be clear. There are acoustical engineers over there around the world. Avs forum may be another good bet. I don't want to stear you away for caraudio use at all bro because i would love to see other people change my outlook on them and they may work great for certain car setups. Anything we could learn from your experience is good and you can be the next 8th order bp guru haha. I'd love to see a log man.

Last edited by Novicaine; 04-12-2011 at 01:09 AM.
Quick reply to this message
  #6  
Old 04-12-2011, 01:16 AM
Old skool junkie's Avatar
DTD
 
Activity Longevity
0/20 18/20
Today Posts
0/11 ssssss712
Location: Columbus, OH
Age: 37
Thanks: 1
Thanked 2 Times in 2 Posts
iTrader: (22)
Feedback Score: 22 reviews
Default

Quote:
Originally Posted by Huricain3 View Post
Btw I meant diyaudio not diyma, just to be clear. There are acoustical engineers over there around the world. Avs forum may be another good bet. I don't want to stear you away for caraudio use at all bro because i would love to see other people change my outlook on them and they may work great for certain car setups. Anything we could learn from your experience is good and you can be the next 8th order bp guru haha. I'd love to see a log man.
Well I truly thank ya for the encouragement . I briefly checked diyaudio... holy jeez. Them guys are at a 10, daddys at a 3 . I gotta get a little sleep before I can absorb that kind of technical info. I'm sure it'll make sense in the morning lol. Thanks again bro
__________________

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


SQL?? One or the other folks, make up your mind already!

Don: Surfer, you are a really well known SPL box builder - how do you make a box sound REALLY loud?
Surfer: You taketh the cardboard paper towel roll, you cutteth said roll longways, you tapeth said cardboard to the boxeth.
Quick reply to this message
  #7  
Old 04-12-2011, 01:45 AM
Novicaine's Avatar
CACO Late Night Crew
 
Activity Longevity
0/20 17/20
Today Posts
0/11 sssss6135
Location: Porterville, CA
Thanks: 728
Thanked 192 Times in 161 Posts
iTrader: (27)
Feedback Score: 27 reviews
Default

No prob...I hope it comes out good,
Quick reply to this message
  #8  
Old 04-12-2011, 01:52 AM
Novicaine's Avatar
CACO Late Night Crew
 
Activity Longevity
0/20 17/20
Today Posts
0/11 sssss6135
Location: Porterville, CA
Thanks: 728
Thanked 192 Times in 161 Posts
iTrader: (27)
Feedback Score: 27 reviews
Default

Well i dont have the pms of the info i got from a guy a while back but i found this good thread and it makes them look like they will actually sound alright and get low, the posted graph shows good bandwidth: Post Your Triple Reflex Bandpass Designs - diyAudio The first graph looks decent for low end extension, That sub was an 8! I wouldn't mind one for HT at all You may want to buy a wt2 or similar like the OP reccomends.

Whats good about the response graph in that thread is the low end extension and the peak into the "feeler" frequencies and the driver will be loading at that point so it reduces distortion and and possibility of over-excursion which can be a problem for VERY low frquencies and that sub had an f3 of like 18hz, was an 8" and handled 1000watts. Impressive. Down at around 18hz you feel it mostly so I doubt you would mind the unflat transition on the left of the graph.

Last edited by Novicaine; 04-12-2011 at 02:33 AM.
Quick reply to this message
Sponsored Links
Advertisement
 
Closed Thread

Bookmarks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Car Audio Classifieds! forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Location
Where you live
Level of Car Audio Knowledge
What's your level of car audio?

Log-in



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
8 12s-4th order bandpass SUBW123 Build Logs 11 03-30-2011 02:42 PM
4th order bandpass? wahvtec Enclosure Discussion & Design Construction Help 0 06-28-2010 04:53 PM
**FS: 4th Order Bandpass for 3 10s"** 528hz Wiring, Electrical & Other Installation Equipment 5 04-25-2010 07:38 PM
4th order bandpass users come in! murderedtahoe General Car Audio Discussion & Questions 19 04-18-2010 05:21 AM
Four Selenium 6's in a 6th Order Bandpass For Fun Audio4life General Car Audio Discussion & Questions 17 03-17-2010 01:05 AM

» Amps
A/d/s/
Advent
Alphasonik
Alpine
American Bass
ARC Audio
Atomic
Audio Art
Audio Gods
Audiobahn
Audiocontrol
Audiopipe
Audison
Aura
Autotek
Avionixx
Bazooka
Beyma
Blaupunkt
Boss
Boston Acoustics
Bravox
Cadence
Cascade (CAE)
CDT Audio
Cerwin Vega
Clarion
Clif Designs
Concept
Coustic
Critical Mass
Crossfire
Crunch
DB Drive
DC Audio
DC Power
DEI
Denon
Diabolo
Diamond
Digital Designs
Directed
DLS
Dual
DYnamat
Dynaudio
Earthquake
Eclipse
Elemental Designs
ESX
Eton
Farenheit
Fi Car Audio
Fix My Speaker
Focal
Fusion
Genesis
Ground Zero
Hafler
Helix
Hertz
Hifonics
Hushmat
Image Dynamics
Infinity
Interfire
JBL
Jensen
JL Audio
JVC
Kenwood
Kicker
Knu Konceptz
Kole Audio
Kove Audio
Lanzar
Lightning Audio
Linear Power
MA Audio
Magnat
Marantz
Massive Audio
MB Quart
McIntosh
Memphis
Metra
MMATS
Mobile Authority
Morel
MTX
Nakamichi
Niche Audio
O2 Audio
Ohio Generator
Optima
Orion
Oxygen Audio
OZ Audio
PG Audio
Phase Linear
Phoenix Gold
Pioneer
Polk
Power Acoustik
Powerbass
Powermaster
Precision Power
Profile
Pyle
Pyramid
RadioShack
Rainbow
Rampage
RE AUdio
Rockford Fosgate
Scanspeak
Scosche
Seas
Sony
soundstream
Sparkomatic
SPL Dynamics
Stinger
Sundown Audio
Swiss Audio
Targa
TC Sounds
TREO Engineering
TRU
Tsunami
Ultimate
US Acoustics
US Amps
Velodyne
Vifa
Viper
Visonik
Xtant
Zapco
Zed Audio
Powered by vBadvanced CMPS v3.2.3
Links
Amp Guts
amplifier, amp guts, ampguts, car audio classifieds, speakers and subs for sale with listings of 12 volt sound systems. Security systems for sale for aftermarket car audio equipment with amplifier and amps for sale
Car Audio Forum
car audio forum, moble audio, car stereo, wholesale car audio, 12 volt, with, amplifier, amp, subwoofer, sound quality, buy car audio, and sell automotive stereo systems for cars
Car Audio Sound Quality Forum
Sound QUality science based car audio forum, amplifier, subs and speaker design, fabrication help, sound systems forum, aftermarket car audio website for sound quality.
Car Stereo Forum
DIYMA car audio stereo forum for 12 volt car audio subwoofer and amplifier systems that have sound quality with wholesale car audio products.


All times are GMT -5. The time now is 12:09 PM.


Powered by vBulletin
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.6.0
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.