I'm currently saving for 1266tc and plan to use them with TT2/HMS combo. From everything I have read and people on this forum yes the TT2 can drive them well. You will gain bass but lose transparency from using the rear XLR's on the TT2.
"gain bass but lose transparency" but is this that simple ?
Maybe one thing you will got is lose transparency which also can be seen as gain in bass.
Things are not so easy when it comes to perception of the sound. I'm still having a headache when comparing some of the audio components.
Has particular component better bass ? Maybe its just bloated ? Maybe its output impedance is higher hence damping factor is lower. Is "bigger" bass depending only on power ? And finally what is "bigger" bass ? Does it mean bass goes deeper or is bigger acoustically? or softer muddier ?
I don't know I only know one thing there is a lot of things that influence your sound perception.
One thing that shows me that raw power doesn't particularity mean "better" bass (again what is better ?)
Once I was using some low end Harman Kardon integrated amplifier. I used it only as a power amplifier (bypassing it's preamp) - pre amp and dac was Hugo 2.
Back then my speakers were: bowers and wilkins dm602 s3.
Once I changed my power amplifier to clone of high end dartzeel power amplifier.
My bass perception changed dramatically.
At first I was shocked: "omg my bass disappeared what is going on. I have more power now I should get "better" bass".
Clone was rated about 140-150wats into 8ohms and Harman was about 70wats into 8ohms.
So doubling the power but my bass was like 2 times weaker.
Anyway after listening for some time and comparing each amplifiers I realized that I gained a lot of transparency in sound. I wasn't losing any bass. With Harman
I was just losing transparency. Bass was bloated not fully controlled. Music sounded like it has this coat. Mids were recessed. And I get it some people like this.
If I invited 10 random people and have them listen to both amplifiers and compare. I'm sure 10/10 would have said that Harman is better because of perception of bass.
Once transparency improved everything sounded leaner better controlled. Also the dynamics were like squashed. At least it sounded a bit like this - everything was more even sounding.
I don't want to criticize anybody's taste in music reproduction. As I said I'm still having headaches when comparing some of the gear and trying to evaluate their overall sound quality.
One thing is for sure: it's hard and once your personal preferences step into place it's even harder.