Here's an interesting one for you. I got these from a guy on Craigslist locally who had him in his house for a few years sitting unused. They were made sometime in the mid 90's by Flite. I bought them because they are light and could fit in my car, but the shows I'm playing just take more juice than I can safely put out through these. They'd work well with a 300 watt head or so, and sound pretty even and very projected. The 2x8 uses NEAR fluid cooled drivers. I ran them with a GK 800rb and they sounded as loud as my Neo 2x12 at about 3/4 of the size and half of the weight. Would be good for someone who plays Jazz or upright. $150 a piece plus whatever shipping is (it won't be much, they're tiny). Pickup in Sacramento, CA is optional as well.
My best guess is that either cab would be comfortable taking at most 300 watts RMS (the Flite 4x8 was rated 600 watts, and the 1x15 has a Black Widow). Dimensions are roughly 19w by 15 by 17d and each cab is under 30lbs.
http://www.flitesound.com/BassCab.html <--- website
