This topic comes up frequently, so perhaps a dedicated thread is worthwhile. Thanks to Richard Lindsey, whose response in another thread prompted this one. We all know that the laws of physics apply to our profession and that the limitations imposed are such that in general terms, a cabinet can have any two of the following three desirable qualities: i) light ii) low iii) loud Being primarily a 5-string player I need to get down low so that's a prerequisite for me in a cabinet choice. In other words, I had discounted "loud and light" in favour of the two other types. This is how I solved the problem... For the combination of "light and low" I use Acme 4ohm Low-B2 cabinets. We all know that these cabinets require a lot of power, but given the cost-per-watt of a decent amp these days they represent a great value and are very manageble in the size/weight department. You'd need to spend a lot more to do better than these. Also, I needed a cabinet with minimal coloration, excellent low end response like the Acmes and it had to be as loud as possible. For "loud and low" I chose the AccuGroove El Whappo. Given the whallop the El Whappo packs it almost transcends the mentioned laws, but realistically it's not a lightweight. The El Whappo is the pinnacle of cabinet design (IMHO). So the floor is open. Do you play 4-string, 5-string or extended range (or other) basses? What did you pick for your situation?