Phoenix Gold Phorum

I've got PG's RSdC10" sub and the RDS600.1 on the way and have a question about the enclosure.

The enclosure i'm making is the same as

http://forum.e46fanatics.com/showthread.php?t=459283

The enclosure doesnt have a back on it making it 'free air'.

Is this advisable or should i put a back on the box, if so what should the volume be? (and how do i calculate it with the sub on the angled part of the box, not he flat part)

Or is it just a case of try it 'free air' and see how it sounds?

Also its going in a BMW which has the car battery in the boot, does this mean that i can forget earthing it to the cars chassis and go straight to the negative terminal of the battery from the amp?

Si

For an infinite baffle install like that to work properly, you have to seal off the trunk from the rest of the car completely. Sound waves passing from the trunk into the cabin will cause cancellations, which gives you an uneven, quieter frequency response. It doesn't look like this guy did any additional work to seal it off... at the very least he should have covered the entire surface with sound deadener.

I don't think the RSDc would be a good free air sub. It responds best in smaller enclosures, like 0.6 cubic feet. Anything larger causes boomy bass. There are subs designed to run infinite baffle which would be better suited to such an application. These subs usually reward you for giving them as much airspace as possible. Examples include the PG Xenons or Image Dynamics IDMax woofers.

I'll attempt to put a back on the box i make when the sub arrives. Thanks for the advice!

finkle636 wrote:I've got PG's RSdC10" sub and the RDS600.1 on the way and have a question about the enclosure.

The enclosure i'm making is the same as

http://forum.e46fanatics.com/showthread.php?t=459283

The enclosure doesnt have a back on it making it 'free air'.

Is this advisable or should i put a back on the box, if so what should the volume be? (and how do i calculate it with the sub on the angled part of the box, not he flat part)

Or is it just a case of try it 'free air' and see how it sounds?

Also its going in a BMW which has the car battery in the boot, does this mean that i can forget earthing it to the cars chassis and go straight to the negative terminal of the battery from the amp?

Si

I did a VERY smiler install to this in my mom's e36 m3

give it a read, you can learn a lot from my trial and error.

http://phoenixphorum.com/modest-98-m3-i ... 14-25.html

as for earthing the amp, your theory is correct, but the easiest place to earth the amp is on the same bolt that the battery earths to. this way you are basically connected directly to the battery, and won't have to buy any additional hardware.

i know the 3 series car more intimately them my girlfriend, so let me know if you run into any problems and welcome to the forum!

Mine will be similar but i'm using the standard head unit and will be using a LOC (Line out convertor).