Does box shape make difference...?

[mrgoblin]

Rounded corners are not there for air flow. In fact, I think the only time I've seen noticeably rounded corners inside the enclosure was in a transmission line enclosure.

You don't need to direct the air from the back of a driver as the entire cabinet is one common volume. The volume of air 'nearest the vent' is what's going to get moved in and out as the speaker fires

Rounded edges on the baffle, however, are to prevent distortion caused by edge reflections.

All the tricks used in the design of speaker cabinets, full range or otherwise, can be considered negligable on their own, but when used collectively, add up to the holy grail of speaker design - A cabinet that does not colour the sound.

The perfect cabinet does not exist, but by using methods such as those mentioned, speaker designers are getting closer.

I understand that my arguments would be better placed on the SQ forum. In the OP's case I'm not sure if he just wants to make things louder or sound better. Maybe I should have asked that question first.

[spoon108]

Hi guys

Do any of you remember and SNS technical where a JL W1 was installed in space saving fibreglass enclosure?

The enclosure was oddly shaped and the article stated that:

{It does not matter what the shape of the enclosure is with a sealed enclosure, as long as the volume is correct. With ported enclosures it is more complex because port length and so on need to be taken into consideration.}

I am not 100% sure on the how correctly I paraphrased the article, but I'm quite sure that's what it said.

[mrgoblin]

Hi Spoon

I haven't read the article, but from what you've said, I get the impression that it is referring to the basic function of an enclosure ie to isolate the front waves from the back.

In it's most basic form, yes volume is the only thing that matters in a sealed enclosure.

When you start getting more into it, you need to start taking more details into account. Controlling cabinet flex, surface resonance, edge reflection and so on. That is where cabinet design and shape comes into play.

Haja has said before that you can't break up standing waves inside a sub enclosure. I don't agree, but that aside, round is stronger than square (think of dam construction) and therefore flex less.

Less flex=good

As I said, my arguments probably belong in the SQ section, but hey.

[Playa4Life]

This was a very informative discussion. Lots of the info in here I havent even thought of before this! Well done to everyone who contributed. I'm in the process of designing a new enclosure for my 2 subz and this thread just put a whole new spin on things for me.
Well done guys. Please carry on with the discussion if any of you have more to add. I'm very interested...