They arent too close to me (im in Bolton).
The quiet thing seems to be an inherent Ashdown thing (maybe its the vintage style voicing) but ive never felt they put out the volume of like-for-like competitors with the same rating. As i say my supposed 250w Hartke will blow the supposed 500w Ashdown away!
I do love the DP200, only thing i could see me getting rid for would be something like an Ampeg V4B or V4BH. I like the b15 type stlying, the relatively light weight and the easy EQ, You say it has the same output as a CTM100?