I'm running a new pair of Khartago monos with Mangeplaner 3.3R series. The monos are still breaking in, but are improving daily. I would not say they are below the Maggies. I've heard the Maggies driven by quite a number of amps. The Khartago's are very good fit -- asuming you plan to get new Odyssey equipment. If you talk to the folks at Magneplaner, they will tell (as they did me) that you need a high current amp -- not necessarily a super high wattage amp. That's what the Odyssey is and why my Maggies like them.