Can anybody recommend a ported box size for a single S.I. Magnum 15".

I`m after STREETBASS / SQ

For SPL I`ll insert a port bung

Depending on box size, I`ll be getting 3 or 4 Magnums.

I can easily fit a 16 Cu.Ft. No-Wall box in the car.

Thanks in advance guys.

Regards.

Marcos

16 cubes is great.. I'd go no less than 4 cubes per driver after displacement with tuning around 30Hz for daily, about 60 square inches of vent area. SPL, I can't tell you.

Thanks very much

Nice to see a Port area that`s quite large.

I`ve just seen this on the specs:

Recommended enclosures:

Sealed = 2.3 to 3 cubic feet.

Vented = 3.5 cubic feet tuned to 27 Hz.

Is the 27Hz tuned for extended Bass or is it the usual tuning freq for this type of sub?

(I`m guessing Extended as it`s tuned so low)

For SPL all I have to do is get the largest port area useable within the current box size which is tuned to around 43Hz.

Due to the fact that The SPL port is always larger. The StreetBass port is the one that is usually slotted & secured into it.

An extended bass alignment is generally going to have a pretty flat response. This application generally leads to an exagerrated lowend response in-car. Not ideal for SPL.

Send Bigbassman a PM and he should be able to help you with everything on the SPL side. He knows his Magnums quite well, and I believe he will be dabbling with the all-new drivers once they are available.

Hiya Marcos.

Glad to see you're on board mate

Have a word with Nick, Mr Electrodynamic, he knows his Magnums like we know the back of our hand. Tell him I sent you

holy schnikes, four 15 D2's would be insane. one is already pretty insane for me and everybody I know that's sat in my car. I'm tuned to 30 hz and i think that's about perfect for me, and i'd go to the upper end of the box size spectrum. if you want just a little more SPL go for 3.5 cubes at 30 hz, for a bit of a flatter response stick with their 27 hz tune. though the difference won't be huge.

We had the red Explorer on our demo car page tuned to 40 Hz and it was nuts. For competitions it got tuned to 55 Hz, but when it was at 40 it hit beyond hard (a bad comp was getting a 151).

Getting low and loud is always fun, and for a non-competition car tuning low is where it's at. If you want to be competitive you need to tune high. Mid 30's to low 40's is where I'd go if you want to compete.

It`s all sounding good to me

Can`t wait to sell some of my stuff & order those subs.

All my boxes are designed for use for SPL & STREETBASS.

Larger port for SPL and a smaller area or longer one is inserted into the SPL port to tune the box lower for Listening.

All corners have 3" - 45 deg angled fillets.

All ports are also Flared at both ends.

The reasons I`ve stopped with my current system is because:

1: I`m using so much power (being limited to 2 batteries etc) so I can really only burp now.

2: The subs start to get really smelly & hot after 5min

3: The system never looks neat, due to the box changes etc

4: I miss STREETBASS