วันพุธที่ 28 ธันวาคม พ.ศ. 2554

Polk Audio RC55i 2-Way In-Wall Speakers

Product Description


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The Polk Audio RC55i 2-way In-wall Speaker delivers incredible sound to any room in your home without using any floor or shelf space. The RC55i is easy to install, requiring only that you cut a hole, feed the wires through, and simply drop the speaker in where it is held in place by rotating cams that safely secure the speaker with no extra assembly or mess. Once installed, the paintable grille and flange allows this in-wall speaker to virtually disappear in the room.
Polk Audio RC55i in-wall speakers in whitePolk Audio RC55i in-wall speakers in white.
The Polk RC55i utilizes a 5.25-inch dynamic-balance, mineral filled polymer-composite cone with a rubber surround that outlasts cheaper foam surrounds, as well as a 0.75-inch dynamic-balance, metalized soft dome tweeter with a swivel mount. The swivel-mounted tweeter is aimable for direct high frequency control that ensures spacious imaging with amazing clarity, and well-balanced sound in any listening position, even off-axis listening positions, rather than in just a small sweet spot.
Constructed of durable, moisture resistant materials, the RC55i is safe for use in bathrooms, kitchens, saunas, or even under outdoor eaves, and features a wide-dispersion design for even sound-coverage throughout even large rooms. The RC55i also features infinite baffle tuning which uses the virtual enclosure of in-wall space for superior bass response, and is timbre-matched to the Polk Audio Monitor Series for seamless, enveloping imaging when used in a home theater system.
What's in the Box
RC55i speakers (pair), 2 grilles, cardboard template, owner's manual, and registration card.

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This review is from: Polk Audio RC65i 2-Way In-Wall Speakers (Pair, White) (Electronics)
I installed two pair of these for the front and surround speakers in a smallish (12'X15) room. They have good overall response, but require considerable bass boost, or better, a sub-woofer, to be OK. They are also so "bright" that they needed a 2 to 4 decible treble reduction to avoid bothersome hiss.

Installation can be a pain because the locking cam (6 per speaker) that clamps the speaker to the wallboard can be so loose on its retaining screw that the locking cam won't rotate into its clamping position to grip the back surface of the wallboard. I solved this by using a little latex caulking compound on the loose retaining screws where they engage the locking cams. I don't know what will happen if the speakers ever need to be removed, 'cause the cam is unlikely to rotate back to allow it to disengage the backside of the wallboard.

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