Rel vs the world


So whenever you look for subwoofer recommendations for 2 channel hifi, one name keeps dominating the conversation.. rel. And the flagship no 25 is seen as the ultimate subwoofer by many. My question is, has anyone compared well made but more affordable subwoofers (JTR, PSA, Rhythmik) to rel subwoofers (especially no 25) and go equally good or better results with the more affordable subwoofers?
Also thoughts on effects of cone material on sound in subwoofers? I am very interested in the choice of using carbon fiber cones on speakers like Alon in Magicos and Michael Borresen in his speakers. When I saw this in the rel no 25 I wondered if that was one of the reasons people were impressed with its performance. I found this article that Tom from PSA sent me pretty interesting.
"Myth: Cone Material Affects the "Timbre" of Subwoofers

At low frequencies, in the bass region below 125Hz, the cone material has no effect on the sound. If it did it would only be because of peripheral side effects such as a large change in the moving mass of the driver, or a cone who's strength and stiffness is deficient for the application allowing a lot of flex and distortion. A subwoofers cone or diaphragm should be stiff enough to not flex appreciably even when under heavy air loads. Any sufficiently stiff subwoofer cone would have resonances or breakup modes which are well beyond the bass range and should be inaudible with a typical low pass filter applied. If we have 3 identical sub drivers with different cone materials, one with an aluminum cone, one with a carbon fiber cone and another with a pressed paper cone and all are adequately stiff and the total moving mass of the driver is within a few percent of each other they will be indistinguishable from each other in a blind listening test.

The main take away here is that subwoofer cone material choice is primarily a consideration of strength/stiffness/durability/cosmetics/cost and weight. Sound is not one of those considerations.
"https://data-bass.com/#/articles/5cbf5e7357f7140004d6d0ec?_k=o4xuea


smodtactical

Showing 3 responses by bjesien

deep_333 have you had the opportunity to compare the Rythmik to SVS?  I just came off a 3 month dac shootout and am focusing on bass now.  I value tuneful and tight bass but occasionally like to let loose and rattle the bones.  The specs on the the two are so similar I wonder if it's worth the time and shipping, etc.  Anyone else compare these?  
I've owned the Stadium 3 and S/3 and now a SVS SB3000.  I like how SVS uses an app to dial it in, plus it goes subsonic, which is nice.  I like the sealed box my system.  I would like to know which @Audiorusty thinks has the most chest thumping slam.   
Haha yes we love to defend what works especially when we lay our hard earned money.out.  I for one can tell you that the SVS SB3000 beats the Rel S/3, but that's in my room and my opinion.  @deep_333 thanks for the detailed response- the only thing that makes me pause about trying the Rythmic is the cool app that SVS has that allows you to dial in the sub much like Roon allows adjustments.  It's nice to be able to adjust on the fly based on the genre or recording.   I'll probably give the Rythmic a try.  One thing I love about Rel is their marketing- those stacks of subs look awesome.