Well Capn, it appears that the driver size here is the biggest factor.
The Rava has a 12", the STF2 a 10" and the STF1 an 8".
To make bass, more air movement is necessary for which a larger driver if often desired (and more effective).
The Rava weighs more, is slightly larger and comes in 2 finishes.

The rest is up to you to decide. I doubt many here have heard or compared both units. I do know that at least one person on these forums owns the Adire though. I just cannot remember who it is.


"Those who preach the myths of audio are ignorant of truth."