Transmission Line Bass

As a long time proponent of good bass without subs, I like tinkering with different ways of approching the age old problem of recreating all energy below 100Hz.
Seriously, if you look at loudspeaker responses, everything seems goes to hell just below that point, swinging wildly in output response, almost independent of many of the typical factors that would be indicators of performance.
So, the question.
Who among us has had extensive Transmission Line Bass Experience in listening, (like me with the IMF's in days gone by, with Bud Fried being a wonderful mentor to me).
In Jim Thiel's lab, one time he told me 'candidly' that Transmission Line Designs 'in theory' don't work. (Another discussion for another time). But he, like me was a bass freak of the first order, loving a rich full bottom end, hence some of his equalized designs early on. They were an all out attempt to bend the laws of physics.
So, what do we think of Transmission Line bass--so, if you're familiar with the sonics though actual listening, and can express first hand opinions let us hear your impressions of the differences between ported, passive radiators and transmission.

Thanks in advance...


Showing 1 response by csmgolf

I own or have owned 2 TL systems. Both produce bass of very high caliber IMO. The speakers are the Intuitive Design Summit (no longer own) and the Fried C3/L monitors with Fried D2 subs currently in a second system. Both the C3/L and the D2 are TL loaded. I found the bass of both speaker systems to have excellent pitch definition as well as proper weight. I don't hear bloat or overhang with the Fried's or the Summits. Both systems are very dynamic. I do not know if the TL loading plays a part in that or not, but to my ears they sound very natural and convincing thru out the bass.