Not sure about the BAT or the CJ but if your budget is only $2000.00 you are not going to make it with the ESL amp by Innersound as it retails for $3000.00. Its ashame because this has got to be one of the best bargains in high end audio, far exceeding the performance of many amps costing way more money. I just changed over to the Innersound myself for my ML reQuest, and have to say that this amp is substantially better than my previous amp. I will not tell you its the best amp on the planet since their are just to many entries to make that comparison, but this is one very special amp for your type of speaker. Very smooth, dynamic, and with unbelievable bass.
Hope this helps
Hope this helps