Why isn;t there 15" versions of dual 18's?

Hey guys, when it comes to subs, since I have been told that generally a dual 15 gives more punch than a dual 18, why don't manufacturers build 15" versions?


Edited by mikehende - 22 June 2016 at 11:23am

My searches on the net haven't shown any reflex dual 15's with identical 18" versions.

I meant identical in design or to put it another way you take a dual 18" cab and have a dual 15 version made.


Edited by mikehende - 22 June 2016 at 12:00pm

There are plenty of front-loaded mid/top cabs with 15´s and comp driver around, they´re pretty standard. 2 x 15" reflex for bass are rare. They are usually a more complex design, eg these:

http://www.twaudio.de/en/product/individual-components/b30-successful-high-performance/

Getting dual 15 reflex bins to drop really low and compete with 18´s is pretty difficult.

no, it's not a myth

We manufacture dual 15" subwoofers and they sound great.
For many aplications 15" works better than 18"

https://www.facebook.com/nexus.acoustics.research/photos/?tab=album&album_id=896029517074377

The market for dual 15" subs is rather small , so that's why people don't build them. You can achieve the same thing using 2 single 15" subs.

Usually dual 18" is used in large touring systems , so there is no need for dual 15" for those applications.
Mobile dJ's usually go for compact, scalable systems

You don't.

You design a dual 15" box then  take the volume of that design and set your outside dimensions to be in the same ratio as the 18" box you want it to look like. Ports can be same shape and in the same place but will need to be specific sizes based on the driver you choose to base your design around.