Infinity, famous for years of speaker innovation and research, has pulled technology from much more expensive speaker lines for use in the high-performance Alpha Series. So you get C.M.M.D. (Ceramic Metal Matrix Diaphragm) drivers: they're stiff, for precise, natural sound, but light enough to be very responsive. Other Alpha highlights include solid, very well-braced cabinets, and high enough power handling and efficiency to permit really big, clean sound. And the Alpha 50 tower is the top of the line!

The 50 showcases a 1" C.M.M.D. tweeter, a 5-1/4" C.M.M.D. midrange driver, and dual 8" C.M.M.D. woofers, in an attractive ported cabinet. Together, these drivers produce sound that's crisp and uncolored at the top, full and lifelike in the middle, and stunningly deep and real when it comes to lows. The remarkably wide frequency response is measured at 35-22,000 Hz! And thanks to the Alpha 50's sensitivity rating of 91 dB and power handling of up to 200 watts, you can make your system sound gargantuan, without any real loss of accuracy. (Want to biamp 'em? No problem — the 50 offers biwirable, biampable gold-plated 5-way binding posts.)

You can pick up a pair of Alpha 50s for pristine stereo music sound. But don't think music is all the Alpha 50 is good for. Teamed up with other Infinity Alpha speakers, the Alpha 50 towers make outstanding front left and right speakers in a home theater setup. Plus, you can use the Alpha 50 as killer surrounds in a 5.1, 6.1, or 7.1 speaker system! And if you're not sure about positioning big towers in the middle of your living room, rest easy — these speakers are sleek and sophisticated.

Recommended center channel: Alpha 37C.
Recommended surrounds: Alpha 20 or Alpha 25ES.

Read a hands-on review of an Infinity Alpha speaker system at CrutchfieldAdvisor.com

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