I recently picked up a Boom Bass Cab - has two 12" drivers in a box typically sized for 1-12. It is a type of isobaric cab. Under 40 lbs, and has a pull out handle/wheels. Jury is still out on sound - but will update.
http://www.boombasscabinets.com/wp-c...Black-side.jpg
http://www.boombasscabinets.com/wp-c...lack-front.jpg
From site -
The BBC Tank 1212 is a 1200 watt 40hm cabinet loaded with 2 12 inch neodymium drivers and our 300 watt horn. This cabinet is our midsize cabinet. For those who love the tight punchy low-end sound and the big rounded mid tones that are sure to cut through the mix, this cabinet will deliver. This cabinet has extra sound ports on the lower sides of the cabinet creating 180 degree sound from the lower woofer, it also has a unique new interior structure design which now allows the woofer to work at extreme high volumes with very little effort. This Cabinet also features a tilt back front baffle which allows sound to travel at a slight upward angle, perfect for the times when you have to stand close to or right over the cabinet. It comes standard with our retractable handle and our rear recessed corner casters for easy mobility, perfect for the working musicians.
Power: 1200 watts 4ohm
Frequency Response: 38Hz – 16KHz
Weight: 38lbs
Size: H. 21″ W. 17″ D. 18″