I used 12" Tannoy MG's from 1971 to 1988. Then on to B&W and Dynaudio (Contour 5.4). Several years ago, I felt the need to return to Tannoy.
I purchased HPD 315 (ca 1975) drivers on Ebay UK, and had custom 150 liter bass-reflex enclosures made for them. Crossovers were custom built, using Munforf S-I-O caps, Alpha Core 12 gauge inductors, and Dueland resistors.
The woofer cones were replaced with new ones converted to the hard edge surrounds as used in the current Prestige line.
All this was accomplished for less than the price of used speakers of similar size in the Prestige line.
The result is everything I hoped for and then some.
I have heard the Cremona Auditors, many years ago, as I was considering purchasing them.
Tannoy 12" Dual Concentric speakers, in the right enclosure, will, I am sure, deliver better bass response than will the Auditor. Tannoy are not limited to any type of music, from huge dynamic swings, to gentle chamber music.
Thay respond well to tube amps (I use a 35 Wpc VAC), or high power solid state. (I have both, in addition to the VAC, a Plinius SA 100 MK III can be switched in in moments). I far prefer the tube amp, however.
I strongly urge you to, if possible, listen to both of your choices, and then decide. Much depends on your room, mine being on the large side (16' X 34', with cathedral ceiling, which the Tannoys fill easily).
Both are fine speakers, and I can't say which will better fill your needs.
Best of luck, regards,
Dan