![]() The crossover uses a 6-decibel/octave low-pass filter on the woofer, and a 12-dB/octave high-pass filter on the tweeter.Īfter breaking in the speakers with pink noise for 24 hours, we installed them in our custom test walls, which exactly duplicate residential construction in terms of the drywall and studs. The tweeter swivels so you can point it at the listener-a common feature with in-walls, and a very useful one if you're mounting the speaker high on a wall. In the $549/pair MC-6, RBH mates its aluminum cone with a 1-inch aluminum-dome tweeter. Other materials, like polypropylene and carbon-fiber, have won over many more speaker designers. In practice, however, aluminum has never particularly excelled as a speaker material. Theoretically, aluminum has major advantages as a woofer-cone material its excellent stiffness-to-weight ratio is well known to bicycle enthusiasts, airplane designers, and lovers of Coke, Pepsi, Bud, and Coors. What is unusual about it are its aluminum cone woofers, which aren't a particularly common find in conventional speakers and are all but unknown in the in-wall market. There's nothing visually auspicious about this speaker: just the usual plastic frame, simple crossover, and spring-clip cable connectors. We certainly didn't expect this situation to change when we received the new MC-6 in-wall from RBH Sound. Although we have stumbled upon a few over achievers in this category- the Boston Acoustics 381 and the Legend Audio Model 4000 come to mind-we've never found one that gave us goosebumps like the best $1,000 pair of in-walls can. What the world needs now is a good $500 in-wall speaker. It seems like we have two choices for in-wall speakers: esoteric, expensive designs that sound good, or inexpensive models you wouldn't want for anything more than background music. The $549/pair MC-6 incorporates aluminum-cone woofers and dome tweeters that produce detailed, uncolored sound. ![]() ![]() This article appeared in the December 1999 issue of Home Theater Magazine ![]()
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