NcHalfrican Posted September 2, 2010 Report Share Posted September 2, 2010 When designing a bandpass transmission line, do you tune the t-line portion higher like you would a traditional 4th order bandpass, or do you still tune to the FS of the driver? Link to comment Share on other sites More sharing options...
Boon Posted September 3, 2010 Report Share Posted September 3, 2010 Ummm... how to explain this... you can tune higher because the sealed section will control the excursion, but you'll lose output down low because you're basically just playing a sealed sub through a tube (t-line below quarter wave length = just a wave guide) I wanna see someone do a 6th order with the 'front' as a t-line. That would be cool. Need a lot of cone and motor force to make it efficient though. 10.x volts fo' life! Link to comment Share on other sites More sharing options...
wL<3bass Posted September 3, 2010 Report Share Posted September 3, 2010 Don't tune the t-line higher than the FS, you will lose low end output. Vehicle: 1997 S10 Blazer 4dr 4X4 Exterior: Rear End Bagged, Black Grill, Lifted 2" Amplifiers: Rockford Fosgate T8004 & T10001bd Batteries: 2 Stinger SPV35, Kinetik HC2400 Electrical: Big 3, DC Power 290amp Alternator w/ MLA at 15.5v Enclosure: 4.2 ft³ @ 33Hz 84sq.in. of port (20sq.in. per cube) Headunit: Eclipse CD3200 w/ 80G iPod Mids/Highs: Rockford T152s (a-pillars), Rockford T162s (doors) Subwoofers: 1 15" Fi BL Fully Loaded Wire: All 1/0g Kicker Hyperflex My YouTube Videos My Fiberglass A-Pillar Build My "Seamless" Looking Box Build My DD1508 T-Line Bandpass Build "Seamless" w/ Acrylic Windows (for '05 TrailBlazer) My Stealth 8" Fiberglass Build (for '05 TrailBlazer) My Build For A Friend's '08 Cobalt 15" BL Sealed Off From The Trunk My feedback/references... Link to comment Share on other sites More sharing options...
NcHalfrican Posted September 3, 2010 Author Report Share Posted September 3, 2010 Ahh ok, I may try my hand at a 6th order...looking for an ''out of the box'' idea to do for my Senior Project Thanks btw Link to comment Share on other sites More sharing options...
wL<3bass Posted September 3, 2010 Report Share Posted September 3, 2010 t-line bandpasses are a bit out of the box, also an abc enclosure would be away from the norm... Vehicle: 1997 S10 Blazer 4dr 4X4 Exterior: Rear End Bagged, Black Grill, Lifted 2" Amplifiers: Rockford Fosgate T8004 & T10001bd Batteries: 2 Stinger SPV35, Kinetik HC2400 Electrical: Big 3, DC Power 290amp Alternator w/ MLA at 15.5v Enclosure: 4.2 ft³ @ 33Hz 84sq.in. of port (20sq.in. per cube) Headunit: Eclipse CD3200 w/ 80G iPod Mids/Highs: Rockford T152s (a-pillars), Rockford T162s (doors) Subwoofers: 1 15" Fi BL Fully Loaded Wire: All 1/0g Kicker Hyperflex My YouTube Videos My Fiberglass A-Pillar Build My "Seamless" Looking Box Build My DD1508 T-Line Bandpass Build "Seamless" w/ Acrylic Windows (for '05 TrailBlazer) My Stealth 8" Fiberglass Build (for '05 TrailBlazer) My Build For A Friend's '08 Cobalt 15" BL Sealed Off From The Trunk My feedback/references... Link to comment Share on other sites More sharing options...
NcHalfrican Posted September 3, 2010 Author Report Share Posted September 3, 2010 Will have to check out ABC boxes...their known for low end extension and SQ right? Link to comment Share on other sites More sharing options...
korey_hofer Posted September 3, 2010 Report Share Posted September 3, 2010 if you want out of the norm then previously known as wenn_du_weinst aka fucking internet coward supreme. I talk shit on other forums like a little bitch and hope i don't get caught out on the street. Link to comment Share on other sites More sharing options...
NcHalfrican Posted September 3, 2010 Author Report Share Posted September 3, 2010 Is that a tapped horn? Link to comment Share on other sites More sharing options...
korey_hofer Posted September 3, 2010 Report Share Posted September 3, 2010 yeah previously known as wenn_du_weinst aka fucking internet coward supreme. I talk shit on other forums like a little bitch and hope i don't get caught out on the street. Link to comment Share on other sites More sharing options...
mr.p Posted September 3, 2010 Report Share Posted September 3, 2010 making me horny.... DCAUDIO BALLS DEEP Link to comment Share on other sites More sharing options...
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