Just a couple of points Drcio: First, there is likely a "voicing" difference between the audiophile-quality Audio Research tube gear you use and the middle-of-the-road ss electronics that were used to demonstrate the Infinitys.
Secondly, bass is very room-dependent and tweakable to a large degree. As to the imaging, that is room dependent and I suspect, in this case, electronics-dependent, too.
You did a smart thing by using your own reference recordings, but the fact that you are judging a complete system in an unfamiliar acoustic environment effectively negates any serious comparison.
If you are really interested in how the Infinitys compare to your speakers why not see if the store will agree to an in-home trial? If not that, then perhaps they would agree to let you bring your amp and preamp to their store to swap into the system.
Then there's always the possibility that the Infinity's just aren't your cup of tea or that the Merlins have some particular character trait(s) that you really like.
But if you are really serious about doing a fair comparison, as I said before, you need to make some changes in your methodology...
And remember, there are a lot more full-range speakers out there than just the Infinitys. However, if you're really hooked on the character of the Merlins, maybe the best thing for you to do would be to think about adding a good dedicated subwoofer system.
Secondly, bass is very room-dependent and tweakable to a large degree. As to the imaging, that is room dependent and I suspect, in this case, electronics-dependent, too.
You did a smart thing by using your own reference recordings, but the fact that you are judging a complete system in an unfamiliar acoustic environment effectively negates any serious comparison.
If you are really interested in how the Infinitys compare to your speakers why not see if the store will agree to an in-home trial? If not that, then perhaps they would agree to let you bring your amp and preamp to their store to swap into the system.
Then there's always the possibility that the Infinity's just aren't your cup of tea or that the Merlins have some particular character trait(s) that you really like.
But if you are really serious about doing a fair comparison, as I said before, you need to make some changes in your methodology...
And remember, there are a lot more full-range speakers out there than just the Infinitys. However, if you're really hooked on the character of the Merlins, maybe the best thing for you to do would be to think about adding a good dedicated subwoofer system.