Isobaric, Bass Reflex

Fisrt off, you will need to locate the t/s parameters for those woofers, then have a read here

dwarren wrote: Fisrt off, you will need to locate the t/s parameters for those woofers, then have a read here

here you go http://www.cerwinvega.com/products/pdf/vega/Vega_subwoofers_manual.pdf

Why do you want to ISO mount those?  Oh well, see page 11 of the manual you linked to.  Build an enclosure exactly like that shown for one woofer.  Mount all four in an Isobaric arrangement, and you'll be good to go.Support the12volt.com

DYohn wrote: Why do you want to ISO mount those?  Oh well, see page 11 of the manual you linked to.  Build an enclosure exactly like that shown for one woofer.  Mount all four in an Isobaric arrangement, and you'll be good to go.

  ok ha ha hah ha i can read the woofer parameters i need a box program to calculate the box size and port lenght  as i dont have one

The proper enclosure size, port size and length are printed right there in the manual.  No need for a calculator.  Four woofers ISO mounted will require the same size enclosure as one woofer mounted normally. Support the12volt.com

DYohn wrote: The proper enclosure size, port size and length are printed right there in the manual.  No need for a calculator.  Four woofers ISO mounted will require the same size enclosure as one woofer mounted normally.

realy oh ok wow thanks sorry guess i missed that im sorry

taziam wrote: DYohn wrote: The proper enclosure size, port size and length are printed right there in the manual.  No need for a calculator.  Four woofers ISO mounted will require the same size enclosure as one woofer mounted normally. realy oh ok wow thanks sorry guess i missed that im sorry

so 2 chambers 2 woofers in each is equal to the 1.77 qubic ported same port etc hmm interesting

You need to understand isobaric mounting.  Two woofers mounted isobaric requires 1/2 the enclosure volume of one woofer for whatever enclosure alignment you are using.  So, if you use 4 woofers, that will require one chamber that is the size normally needed for one woofer.  If you build to the specs suggested by the manufacturer you will be able to mount them in the size they have already calculated for one, although be sure you account for all that driver displacement so you end up with the same unused airspace as they specify.  Basically, you will not gain anything in terms of SPL over using just two woofers, but you will be able to handle vast amounts of power and the enclosure will be 1/2 the size normally used for two.  How it will sound is questionable, but if you want to go for it, then do.Support the12volt.com

DYohn wrote: You need to understand isobaric mounting.  Two woofers mounted isobaric requires 1/2 the enclosure volume of one woofer for whatever enclosure alignment you are using.  So, if you use 4 woofers, that will require one chamber that is the size normally needed for one woofer.  If you build to the specs suggested by the manufacturer you will be able to mount them in the size they have already calculated for one, although be sure you account for all that driver displacement so you end up with the same unused airspace as they specify.  Basically, you will not gain anything in terms of SPL over using just two woofers, but you will be able to handle vast amounts of power and the enclosure will be 1/2 the size normally used for two.  How it will sound is questionable, but if you want to go for it, then do.

  ok gotcha now small question the port size length remains the same? as i need my trunk or rear for supplys for work space is limited cant install a box thats 7.08 cuft to run the woofers normaly so iso is the only space saver way i can think of