6berry Posted June 8, 2011 Report Posted June 8, 2011 I plan on getting 4 level 3 10's for my car soon and they will be powered by either a sundown SAZ-2500D or a Rockford 2500. I designed this ported box for them with 2 subs on each side with 1.8 cubes after displacement per 2 subs. The problem is when I put the numbers into WinISD to tune the port to around 30 Hz with 30-40 sq inches of port area it tells me I need a 40-50 in port. Is there any way I can fix this? I can give you the dimensions for my box if you want them. The subs are staggered diagonally on their baffles because i didn't want this box to go too deep into my trunk. The two baffles are at a 30 degree angle from each other. Quote 1999 Audi A4 1.8T::: 4 - DC Level 3 10's in a 4th order Rockford P6002 on Subs for now (3-3.5k coming eventually) MB Quart ONX4.60 for Mids and Highs Boston S50 Components in Front Boston S65 Coaxials in Rear 40 Sq Ft of Second Skin Damplifier Build Thread UBL 1948 Plymouth
CJ18 Posted June 8, 2011 Report Posted June 8, 2011 If you are running a PC download the torres box calculator on here. It is a much easier way to figure port tuning. Quote
hdorre Posted June 8, 2011 Report Posted June 8, 2011 You'll probably have some cancellation. How much space is between the closest pair of subs that are on opposing sides? Have you just considered a 4th or 6th order? Quote On 5/8/2011 at 7:38 PM, Kranny said: On 5/8/2011 at 7:35 PM, 'Maxim' said: It hurts me inside when I read stuff like this and remember you're 15 LMFAO so true Mitsubishi 3000GT (Old Build) Headunit: Pioneer 80PRS Frontstage: (2) McLaren Audio MLT-2 Tweeters & (4) PRV Audio MR Series Neo 6.5" Mids Substage: 4 15" Hybrid Subs - Tantric Motors & Sundown Softies Amps: Banda 2.4D Amp (Tweets), American Bass VFL 350.4 (Mids), and (2) Ampere 3800s Electrical :Singer 260A Alt & JY Power Lithium 2005 Chevy Colorado Ext Cab Headunit: Pioneer 80PRS Frontstage: 4 PRV 700Ti Tweets & 6 10" Delta Mids on 3000wrms Substage: 6 Fi BTL 18s in a 4th Order Walkthrough on 3 Wolfram 4500s Electrical: Singer "390" and JY Power My Official Feedback Thread
6berry Posted June 8, 2011 Author Report Posted June 8, 2011 Thanks the torres box calculator is working way better! The subs are about 2 inches apart but the way they are staggered most of the sub is aimed at the baffle of the other side. i was considering a 4th order but I dont have the room for it Quote 1999 Audi A4 1.8T::: 4 - DC Level 3 10's in a 4th order Rockford P6002 on Subs for now (3-3.5k coming eventually) MB Quart ONX4.60 for Mids and Highs Boston S50 Components in Front Boston S65 Coaxials in Rear 40 Sq Ft of Second Skin Damplifier Build Thread UBL 1948 Plymouth
CJ18 Posted June 8, 2011 Report Posted June 8, 2011 What are the max dimensions you have to work with? Quote
6berry Posted June 8, 2011 Author Report Posted June 8, 2011 I can go 34" wide, 19.5" high, and about 16" deep but maybe an inch further if needed Quote 1999 Audi A4 1.8T::: 4 - DC Level 3 10's in a 4th order Rockford P6002 on Subs for now (3-3.5k coming eventually) MB Quart ONX4.60 for Mids and Highs Boston S50 Components in Front Boston S65 Coaxials in Rear 40 Sq Ft of Second Skin Damplifier Build Thread UBL 1948 Plymouth
CJ18 Posted June 8, 2011 Report Posted June 8, 2011 Its hard to figure out if this configuration would work for you but with 10s and your dimensions I think it would. This is the box I have in my truck now for 4 Xl 15s. You could either port at the bottom under the 2 middle subs or port firing up centered on the back of the box. Quote
6berry Posted June 8, 2011 Author Report Posted June 8, 2011 I'll see if i can design a box like that to fit my car. Quote 1999 Audi A4 1.8T::: 4 - DC Level 3 10's in a 4th order Rockford P6002 on Subs for now (3-3.5k coming eventually) MB Quart ONX4.60 for Mids and Highs Boston S50 Components in Front Boston S65 Coaxials in Rear 40 Sq Ft of Second Skin Damplifier Build Thread UBL 1948 Plymouth
6berry Posted June 16, 2011 Author Report Posted June 16, 2011 You'll probably have some cancellation. How much space is between the closest pair of subs that are on opposing sides? Have you just considered a 4th or 6th order? how do you think these subs will do in a fourth order? i can do it with 2 sealed chambers at about 1.5 cubes net and a center ported chamber at a little less than 1.5 cubes net with a port tuned to 45-50 Quote 1999 Audi A4 1.8T::: 4 - DC Level 3 10's in a 4th order Rockford P6002 on Subs for now (3-3.5k coming eventually) MB Quart ONX4.60 for Mids and Highs Boston S50 Components in Front Boston S65 Coaxials in Rear 40 Sq Ft of Second Skin Damplifier Build Thread UBL 1948 Plymouth
CJ18 Posted June 16, 2011 Report Posted June 16, 2011 I am no expert on 4th orders, but I think you want about a 2:1 ported to sealed ratio. No clue about tuning 4th orders though. Quote
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