t-money Posted May 3, 2011 Report Share Posted May 3, 2011 i was thinking about trying a new box outside of what im used to. so my question is how big should the ported chamber be in relation to the sealed chamber? and what should the ported chamber be tuned too? im trying to make a loud and efficient box Quote 2002 ford focus hatch pioneer DEH-P8400bh infinity kappa 6.5 components front and rear XS Power D1200 Shuriken BT-100 audioque 120.4 2 15 inch audioque HDC3 D2 2 audioque 2200d big 3 mechman 220a alt with external regulator 479-418-3056 Link to comment Share on other sites More sharing options...
D-train-13k Posted May 3, 2011 Report Share Posted May 3, 2011 3:1 ratio is the best 2:1 is good too. tune to about 48-52 Hz. Quote The IrishmanCheck out my build hereXL 4th order wall build logIn Progress:alpine cda HU4th order Bandpass2xl 15's1- ab 400.1 (gonna be two hopefully)4- Crescendo 8's2- xts crecendo supertweeters 2 sq super tweetsMb quart 4.125Mechman 270a alt1- xs D27003- xs XP3000 4- odessey pc1700seller feed back threadhttp://www.stevemeadedesigns.com/board/topic/136418-d-train-13k/ Link to comment Share on other sites More sharing options...
t-money Posted May 3, 2011 Author Report Share Posted May 3, 2011 even if i want it to play the lower notes too? Quote 2002 ford focus hatch pioneer DEH-P8400bh infinity kappa 6.5 components front and rear XS Power D1200 Shuriken BT-100 audioque 120.4 2 15 inch audioque HDC3 D2 2 audioque 2200d big 3 mechman 220a alt with external regulator 479-418-3056 Link to comment Share on other sites More sharing options...
dwright27 Posted May 3, 2011 Report Share Posted May 3, 2011 3:1 ratio is the best 2:1 is good too. tune to about 48-52 Hz. 3:1 is th best?? Damn ... How you figure that? Every situation is different. If you want a peaky response usually a larger ratio is good for you Quote 2006 F-150 4 DC XL M2 18's Walled Daily Driver XS Power 4 DC 3.5kw Team DC Team S.P.L. Lot of Audio Technix and 1/0 DC Audio Dealer American Bass Dealer XS Power Dealer Audio Technix Dealer Link to comment Share on other sites More sharing options...
dwright27 Posted May 3, 2011 Report Share Posted May 3, 2011 What car with this be in? Where will subs be and what size subs? Quote 2006 F-150 4 DC XL M2 18's Walled Daily Driver XS Power 4 DC 3.5kw Team DC Team S.P.L. Lot of Audio Technix and 1/0 DC Audio Dealer American Bass Dealer XS Power Dealer Audio Technix Dealer Link to comment Share on other sites More sharing options...
matt402 Posted May 3, 2011 Report Share Posted May 3, 2011 (edited) 3:1 ratio is the best 2:1 is good too. tune to about 48-52 Hz. 2:1 is better for daily IMO. higher ratios are more efficient but lack a lil bandwidth . & yes OP, bandpasses are tuned higher than regular ported boxes bcuz u have the sealed chamber helping control it. dustin iz a ninja... Edited May 3, 2011 by matt402 Quote Link to comment Share on other sites More sharing options...
t-money Posted May 3, 2011 Author Report Share Posted May 3, 2011 well im looking for more of a general box design rule. not sure what i wanna run in it yet Quote 2002 ford focus hatch pioneer DEH-P8400bh infinity kappa 6.5 components front and rear XS Power D1200 Shuriken BT-100 audioque 120.4 2 15 inch audioque HDC3 D2 2 audioque 2200d big 3 mechman 220a alt with external regulator 479-418-3056 Link to comment Share on other sites More sharing options...
D-train-13k Posted May 3, 2011 Report Share Posted May 3, 2011 (edited) 3:1 ratio is the best 2:1 is good too. tune to about 48-52 Hz. 2:1 is better for daily IMO. higher ratios are more efficient but lack a lil bandwidth . & yes OP, bandpasses are tuned higher than regular ported boxes bcuz u have the sealed chamber helping control it. i agree the 2:1 is better for daily. sorry i was in a rush and was typing quick. Edited May 3, 2011 by D-train-13k Quote The IrishmanCheck out my build hereXL 4th order wall build logIn Progress:alpine cda HU4th order Bandpass2xl 15's1- ab 400.1 (gonna be two hopefully)4- Crescendo 8's2- xts crecendo supertweeters 2 sq super tweetsMb quart 4.125Mechman 270a alt1- xs D27003- xs XP3000 4- odessey pc1700seller feed back threadhttp://www.stevemeadedesigns.com/board/topic/136418-d-train-13k/ Link to comment Share on other sites More sharing options...
t-money Posted May 3, 2011 Author Report Share Posted May 3, 2011 right on anything else i should know? Quote 2002 ford focus hatch pioneer DEH-P8400bh infinity kappa 6.5 components front and rear XS Power D1200 Shuriken BT-100 audioque 120.4 2 15 inch audioque HDC3 D2 2 audioque 2200d big 3 mechman 220a alt with external regulator 479-418-3056 Link to comment Share on other sites More sharing options...
matt402 Posted May 4, 2011 Report Share Posted May 4, 2011 right on anything else i should know? u should mount the sub inverted (motor in ported section) & tune ~45-55hz =]. what sub(s) is this for?... Quote Link to comment Share on other sites More sharing options...
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