Im researching getting a rig and want to get a carvin br600 or 1200 head, and I was looking at either a drbass or avatar cab, but then i started looking at phil jones bass. I dont really want the suitcase combo cuz its a lil pricy, but the 4b extension cab for it is cheaper than any drbass cab. I was just wondering if anyone has used the 4b extension cab apart from the suitcase combo even though its designed as an extension for the suitcase.