2 subwoofers to connect to Naim nova

There is no such thing as too much. There is however such a thing as too few. What you want is four. When using four they can be smaller, placement is a lot easier, and the resulting bass is so much smoother and real than two you will find it hard to believe. 

You can connect three subs easily to your Naim- one each to the pre-out, plus one to the sub out. Don't worry about L/R, it does not matter with subs. Then you can add more, either daisy chain off one of the subs, or use a Y-adaptor. Off of what does not matter.

Another solution, right now the Dayton SA1000 amp and subs are on sale at Parts Express. One amp, four subs. Killer deal. What I did. 
https://systems.audiogon.com/systems/8367#&gid=1&pid=8 Several others here have done the same or similar. Search around. Its called DBA. Everyone who does it loves it.

Hi romney80,

You can definitely connect two subwoofers to the Uniti Nova, and REL’s recommended approach for this is to use the High Level input on the subwoofers. This input uses a specialty cable that is provided with each subwoofer and connects to the Nova’s speaker output binding posts, rather than the subwoofer pre-out.

The Aerial 7ts will benefit from the extra responsiveness and bass extension of the Serie S models, though the ideal subwoofer match depends of a few additional variables. You can reach out directly at contactus@rel.net and we will be happy to provide more detailed subwoofer pairing advice.

@romney80

You got great advice straight from REL!  I have 2 REL subs and love them.  Disregard the first response.

If you’re going with REL you can use their ’subwoofer finder" tool. Depending on the size of your room, REL recommends the S/812 or S/510 with Aerial Acoustics 7T speakers.