MartinLogan showed some enticing and very reasonably-priced two-ways with real electrostatic drivers. The Purity (left) and the Source (right) are similar in size and appearance (at least so far as the electrostatic elements are concerned), but differ significantly. The Source ($2000/pair) uses an 8” woofer and has a wedge-shaped base that allows you to tilt the entire speaker to suit the needed vertical listening angle. The Purity ($3000/pair) has a pair of 6.5” woofers and a 200W digital amp, which permits it to be driven by a CD player or preamp or, even, by an MP3 player.
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