Here is the 1212R with a Carvin B1500, LMII and Shuttle 6.0
I can't say how useful the comparison of amps are since they are recorded in various settings and two of the clips are pretty rough in terms of sound quality.
However, I think the signature tone of this cab can heard in all 3 clips. It has a distinct tone that is not the standard with their low-mid emphasis.
Here is a clip from TBer Smash:
http://www.talkbass.com/forum/showthread.php?t=224326
He's playing a Carvin B1500, 1212R and a Lakland Jazz
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Here's a very rough clip I did with my 1212R and shuttle 6.0
http://www.talkbass.com/forum/showthread.php?t=224326
I'm playing my only gigging bass... P bass with Labella Flats, and SD 1/4 pounders
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Here's a clip of my 1212R and my LMII:
Its outside in a parking lot, with the cab placed directly on concrete. I had to give the bass eq a boost (which I usually don't do).
Be sure to choose the "watch in high quality" option as the camera's mic is distorting somewhat.
The LMII matches very well with the 1212r IME. Its VERY loud. In that outside clip I only had the volume on at 10:30 and Gain at 1:00. Aside from the bass being boosted and the highs cut, everything else is flat, filters off.
Its incredible how loud the LMII and 1212R can get for such a portable rig. Certainly loud enough for your average cover band.
I'll never sell either of these units... and from me that says alot!
Here's a pic: