Thiel Owners


I just scored a sweet pair of CS 2.4SE loudspeakers. Anyone else currently or previously owned this model?
Owners of the CS 2.4 or CS 2.7 are free to chime in as well. Thiel are excellent w/ both tubed or solid-state gear!

Keep me posted & Happy Listening!

barnett - the sound in your recording is not the overload 'splat'. Your noise sounds like wire buzz or similar mechanical vibration. Something may be hitting the back of the woofer or passive radiator, or alternately, the surround of the passive radiator may have come loose. There is an interior surround identical to the external one. You can feel it by taking out the woofer or see it with a mirror.


Regarding the ’splat’ in general. The splat is the audible effect of a larger problem. Interaction of fields in the speaker system cause negative sonic effects at all volume levels - becoming worse as volume increases. Some have described the 2.2 as ’veiled’ and/or ’squishy’. Sorting out the internal field and propagation geometric issues lifts that veil and tightens up the squish, and the bass.

I observe two ’types’ of Thiel speakers: those with crossovers distant from the drivers (mainly woofers) and those with XOs in proximity. Those with distant XOs (think CS2.4 or 1.5 & 1.6 or 3.7 & 2.7) share a clean effortlessness that the close XO models don’t manage to attain.

I am developing various solutions short of outboarding the crossovers. Later passive radiators such as the 1.5 were removable, allowing the XO to be moved from behind the woofer to behind the PR. A new CS2.2 removable PR could address this issue. A removable cabinet bottom for repositioning an inboard XO may be feasible. Half the battle is identifying the problem. No end to the fun.


@tomthiel, I’d consider using outboard cross-overs with my CS 3.5’s, especially if they could be optimized for use with upgraded eq’s. Perhaps even an eq > cross-over > amplification progression?

I will try switching the wires but I like the mechanical explanation because this does only happen during moments of extreme bass like that where the driver is moving an extreme amount.

To diagnose the vibration issue, I should remove the woofer and just look for something loose or would you suggest trying to play that clip while the woofer is unscrewed??

Incidentally, when I turned off the amp and cranked the subwoofers by themselves, I also found vibration noise coming from one of the hanging ceiling panels. I was able to resolve it, but there's no way I would have noticed it if the main speakers had been playing too. 

I don't know if this is of help in tracking down what is going on in your system, but I do not hear the same "flutter/buzz/vibration" sound you hear when I play a Qobuz FLAC file of the Boz Skaggs track on my Thiel 2.2s at moderate volume levels. Perhaps I would hear something if I stressed my speakers at a higher volume level, but I'd rather not push them too hard.