A pair of H2O Signature Monos in silver. Rated 250W/8 and 500W/4, these will drive anything and YES!!! Including the famous (infamous) Amp Killer 1 ohm Apogee Scintillas. Of course, muscle alone won't count much if they don't sound good. These will drive ALL of the Apogees and also ALL the Maggies at ear-splitting level all day long while still maintain composer. These definitely sound great on planar specially, but also manage to sound great with many other speakers such as Avalon Acoustic, Thiel, Revel, Dunlavy and many other highly respected speakers.