I have previously inquired about what I believe to be the same amplifiers as yours - with the same question. My concern was not having enough power to drive the speakers I was intending on in the future.
I called Cary directly(you should try), and was put in touch with a very helpful, courteous, and knowledgeable gentleman. He informed me that this was no problem. The only issue was to make sure to bias the amp correctly for the type of tube.
I called Cary directly(you should try), and was put in touch with a very helpful, courteous, and knowledgeable gentleman. He informed me that this was no problem. The only issue was to make sure to bias the amp correctly for the type of tube.