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Newegg.com has the Infinity TSS 3-In-1 Channel Single-Enclosure Loudspeaker - Platinum for only $179.99 with free shipping.

Product description from Newegg.com:

As part of a complete home theater system, the Infinity TSS 3-In-1 delivers the left, center and right channels with all the finesse of the three separate speakers it replaces, delivering crisp dialogue and spacious imaging. It is perfect for those applications where space is tight or placing speakers to the sides of the television is impractical.

Crossover Frequency: 3,500Hz (24dB/octave) (each channel)

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