Best Subwoofer for Magnepan speakers

Second the Vandy 2Wq.

Does anyone have experience running the James EMB-1200/1500 subs with Magnepans 3.6. Is the passive radiator design effective? Any fans of the Paradigm Reference Servo-15 with Maggies? Would appreciate recommendations for any subs up to $3k.

How about get two Adire Rava 2. Or just make sure your subs are sealed and you will be alright. Just like heads ..two are better than one.If you have the room that is.LOL
Stereo sealed subs are where it's at.No single sub with a single woofer/ input/ amplifier going to compete with two separate units run in stereo for music.Just not going to happen I don't care how much it cost.

Magnepans need subs that can keep up. I haven't heard a ported sub that can do this well. The less distortion the better. It will be easier to mate the subs to the Maggies.When your not running both left and right channels to the same unit.

Good Luck!

REL and Vandersteen are two audiophile quality subs which will work tremedously well with either two channel or HT applications. I am using twin Vandersteen 2W's (older model, but excellent quality. Built in non-limiting 300w amps, so no need for external amp)and they blend utterly seamlessly with planars/hybrids.
Insist on a pair of subs; some may arue it, but twin subs offer a distinctly better listening experience. Used Vandy 2W's are around $6-700.00 and should come with X-2 crossover (a must for proper operation; they allow you to adjust your sub settings to match whatever amp you are running)!

I feel you might be heading in the wrong direction by adding a sub. Your 3.5 can generate natural deep and massive bass notes with more powerful amps that are operating below the clipping line, Magnepans are like politicians they always need more good power.