Subwoofer

Regarding cone material.....Rythmik’s Brian Ding recommends AGAINST crossing-over his aluminum coned subs at higher than 80Hz (the built-in Rythmik x/o affords as high a frequency as 120Hz, but that’s for the paper-coned sub), going with the paper-coned F12G if needing to do so. The reason for that is the aluminum cones have a lower resonant frequency (the aluminum cone itself, not the sub’s rf) than do the paper---that rf being too close to 80Hz for comfort. He recommends aluminum for higher-SPL applications, as it is stiffer than paper, displaying less cone break-up (non-pistonic behavior) at high excursion.

Ricred1, I was thinking of trying the F110s. Thought it might be a good match with my MGs. I need to look into them further.

Rwwear, I will check out the Velodyne DDs.

Thanks!

"regarding cone material.....Rythmik’s Brian Ding recommends AGAINST crossing-over his aluminum coned subs at higher than 80Hz "

I understand because the are too slow, and cannot handle more. This is a limitation, you never should choose for audio tools which have limitations. Most tools/products in audio have limitations and that is why you should never buy them.

A full aluminium cone is also not the right material. You can use aluminium, but....just for a part. That is why ceramics with aluminium works better.

When you compare and test subwoofers who are able to be used till 120hz or higher they outperform the paper subwoofer with ease.

Audio needs to be used to find those products which give the best result, all other inferior products does not add anything to the world of audio!

I wish you would stop saying some subs are "too slow" bo1972. Bass is slow because it is supposed to be. I can almost guarantee if the bass is tight and fast it's because the sub is not going down to it's desired frequency. When's the last time you heard a 10' kettle drum or an acoustic bass?
Another thing. All audio components have limitations. Everything built has some limitation. A sub that works up to 120hz is easy. Making one work at 15hz is harder.

I will explain it once again: I compare and test all the time. The only thing what is important in audio is that those products who give the best results do matter. All the other products doens’t make sense.

Even te brand does not matter, because when another brand can give a better result, this will be the new reference.

When paper subs would be better than ceramic subs I would want them and sell them. But all results gave the same answer.

When I would get better results at 80hz, I would use it all the time. But 120hz makes clear that it is a lot better. That is why you need to test and compare all the time.

Over and over again......