subwoofers and ribbons

[anon_bb]

Having looked at the various ribbons designs around it does seem to be posible to put together a mid and tweeter line array say (using solens / BG for the mid and raal / TAD for the tweeter) that goes down to about 150 hz, where presumeably crossing over into a sub isnt too problematic. So ... which sub to consider?

1) MAD array - www.getmad.us - overkill but seems to be the only planar ribbon woofer around available OTS.

2) Commercial standalone subwoofer - such as velodyne. What else out there is SOTA?

3) Wilson benesch torus - seems like a nice idea but no idea of its specs - what frequency range does it cover?

4) Dipole bass line array.

Any ideas welcome.

 

[Stereo Mic]

Not a real fan of ribbon hybrids myself, but I trust you've looked at the Newform Research homepage for some intersting ideas?

 

[anon_bb]

With a MAD array it wouldnt be a hybrid.

Also I think most hybrids cross much higher?

 

[Tenson]

The MAD array only goes down to about 80Hz, so it would still need a sub really.

 

[anon_bb]

They quote 50 hz - given it has 8 kw handling a bit of eq might work wonders

They also make custom bass arrays which is more what I was looking at - or supplement it with the Torus

 

[Markus S]

Haven't heard the Torus myself, but someone who has rates it as the best sub ever, much better than Velodyne.

 

[Tenson]

Hmmm, on the website it says 80Hz-20KHz (equalised) with 5Kw for the A8.

Having experience with some very similar drivers to those, I really doubt they go right up to 20KHz very nicely. More like 16KHz and then start to break-up. A bit of EQ could help of course but its not the ideal thing.

As for EQing them down to 20-30Hz I would ask them before making any assumptions, as the excursion is very limited on planar magnetic drivers. It could be possible though.

 

[anon_bb]

I would only run them up to 150-200 hz.

They make custom arrays too.