Thiel Owners

 I haven't yet looked at the 3.5, but will look into it. The equalizer could indeed be ignored in an upgrade. 

Sounds good, Tom. Seems to be some demand for that model! And maybe someone will step up to address the equalizer?

@prof   i would really be interested in some recommendations for electronic music.   do not have much but my favorite album is underwater sunlight by Tangerine Dream.  thanks in advance

Question , why are the 2.4 spec'd at 33 hz manuf ( 36hz stereophile )
and the 2.7s are 35hz manuf, when they both have the same woofer and approximately the same size cabinet ?
Crossovers ? why would the newer speakers have less ?

I'm not complaining about the 2.7s lower end
(  especially after moving from 2 way speakers )  
and 'am looking forward to the upgrade possibilities
but I thought I'd ask Why the difference .

Rob

Happy almost Friday

I can offer a general answer. For perspective, the difference between 33 and 35 Hz is barely academic, virtually identical. Thinking in half-octaves (15 Hz at 30 Hz) is more germane to performance class than is a few cycles. Low E1 on a bass is 40 Hz.

Differences are accounted for by technical particulars. Bass alignment is very specific to cabinet volume, rigidity, driver position, diaphragm mass, maximum excursion, suspension characteristics and motor factors. An alignment is optimized considering these many factors among others. 

Not much musical content below 35 Hz: 

http://www.sineworld.com/html/basic_knowledge/freqchart.html

I can never again live with a speaker that isn’t robust down to 40 but I’d rather have a killer speaker that stopped at 40 than a mediocre one with full output below 30.