I wish the Link had a sub out so that you could use ARC for the sub and optimize the L & R speaker - sub combination. The Amp does have a sub out so you can use it in that way but you are limited to using the 50w/channel amp which in my listening tests is pretty good. And with the amp you only have a single analog input. Here is image of the innards of the PW-Amp for those who are way more technically proficient than me: