Medicine Man, I had a similar experience just last week with the Prototype Changeling 1533 that Duke made for me. There was no room for bass in the PA at a medium-sized outdoor gig (about a third of a football field), so my 600W Glockenklang Blue Soul and my Audiokinesis 1533 Changeling had to carry the entire burden of bass amplification. There was zero PA support for me at all: the drums, vocals and guitar were hogging all of it. Not good!
I was seriously worried that I wouldn't be heard at all over the PA, so I pushed both the Glock and the Changeling as hard as I felt was prudent. Let me tell you, the combination of amp and cabinet got surprisingly loud. The Changeling roared with all that power going into it. Halfway through the 2nd song, the soundman gave me a huge thumbs up. I thought that he was just patronizing me because he knew I was irritated with him. But, after our first set, he told me that he was incredulous at not only the amount of volume, but also how well he heard the details of my sound as he moved around the audience. He said my bass sat perfectly in the mix - I was playing a '66 P bass both fingerstyle and with a pick for this gig. He said the sound was full and thick... and very aggressive, especially when I played with a pick. A bass player friend of mine was in the audience that said basically the same thing, and wanted to know what was that cabinet I was playing. So, I guess the sound guy wasn't giving me a load of bull... I really did sound great... perhaps not my playing (LOL)... but at least my tone.
Duke, I still love this prototype Changeling 15 you made me. Keep up the good work, my friend. For those of you wondering if the Changeling 1533 or the Hathor 1533 can adequately handle high volume situations, let me assure you that - at least in the setting that I described above - it did so admirably.
Also, Duke... you know that this question is coming... any progress on LOGOs? No, I haven't forgotten. WINK!
Ben