GoldfenEar Invisa SP 652 (Each)Similar to the Invisa 650, the Invisa SP 652 is a very versatile all in one stereo speaker, which, when both channels are paralleled, also makes a great bipolar surround speaker as well as an in ceiling height speaker. Solidly constructed of a marble infused polymer, the unitized construction actually has the high definition wide dispersion dual wound voice coil 6 1 2 driver constructed as an integral part, with clear performance advantages. Special