I'm considering both the CL-61A as well as the HD-62EF. My cutout for the tweeter is about 2" (could be just under 2") and I'm not quite sure if it's too big for the 3/4" tweeters included in the CL-61A set.
My mounting depth limit is 2" so I'm quite positive I'll need a spacer ring, though I'm not quite sure how big a spacer ring I will need. Is 1" enough? I think it's enough for the CL series. How about HD series?