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McCormack DNA-1 Rev A question

I was fortunate enough to have purchased a DNA-1 Dlx Rev A from a fellow Audiogoner. The amp that it replaced is a DNA-1 Deluxe. Yes, I am moving up the food chain, and boy does it taste good. The question I have is what is the purpose of having 2 sets of Cardas binding posts for right and left channel? I know this is a 2 channel amp. I just connected my speaker wires to the bottom set of posts. My original Deluxe only has 1 set of Cardas binding posts on the bottom and it looks like there are some screw type of binding post above that. I couldnt figure this out so I had to ask. Thanks for your responses
bjue
bjue OP
18 posts
 
I am learning something new all the time in this hobby. I didn't think of biwiring since I've been using Jumpers all along. Thanks for everyone's responses.
jedinite24's avatar
jedinite24
1,503 posts
 
When I owned a McCormack DNA-1 Deluxe or standard I used the top screw type binding posts when I had spade terminated speaker cables. The Zu Audio WAX spades were a little larger than the norm and when I used the top screw posts on the DNA-1 they securely held the spade there and there was a lot of surface area for the spades vs the binding posts. I was definitely sure there would be contact. In my experience the either post worked fine. It is just a matter of preference.
unsound
7,329 posts
 
If you are considering bi-wiring, and for what ever reasons, some speakers seem to appreciate it more than others, I'd suggest using 2 separate runs for each channel.
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