User manual BOSTON ACOUSTICS CR75

[. . . ] High frequencies in the CR75 and CR85 are handled by Boston's exclusive 1-inch (25mm) Kortec tweeter mounted in an innovative new wide dispersion projection tweeter baffle. This remarkable driver produces an extremely smooth, flat response well beyond the audible range. An aluminum heatsink attached to the tweeter's backplate dissipates heat quickly and efficiently, assuring cool, trouble-free operation--even at very high power levels. [. . . ] KEYHOLE BRACKET: Consult a knowledgeable installer regarding the proper hardware to use on your wall surface. A 1-inch (25mm) long wall anchor is recommended for hollow walls. Regardless of the type of wall fastener used, the screw head diameter should be between 5/16 and 3/8-inch (8 to 9. 5 mm) to fit properly inside the keyhole and slide down on to the slot. When wall mounting your speakers with the keyhole bracket, apply the rubber feet to the four stand off pads on the rear of the speaker to prevent any scratching or marring of the wall surface. CRB BRACKET: This optional stand-off/swivel bracket can be purchased from your dealer or ordered directly from Boston Acoustics using the included order form. The CRB attaches to the back of the speaker using the four mounting holes located at either side of the keyhole bracket. Instructions on how to attach this bracket to the speaker and mount the assembly to the wall are supplied in the CRB kit. Stand off pads (4) Keyhole bracket 3/8`'(9. 5mm) hole CRB mounting holes (4) 5 Connecting the CR Speaker to Your Amplifier or Receiver Checking the Speaker Connections It is important that your speakers are hooked up with similar polarity or "in phase. " A simple listening test will tell you if your speakers are connected properly. Place the speakers face to face, as closely together as possible. While listening to music with your amplifier set to MONO, reverse the connections at one speaker only. You'll hear a dramatic change in sound. The connection that yields the fuller bass and louder sound is correct. How to Place Your Speakers Most people like to hear a realistic soundstage, as they would from a good seat in a concert hall. To achieve this effect, place the speakers 6 to 12 feet (2­4m) apart, so they form a triangle with your favorite listening position. The speakers should be at least 2 feet (0. 6m) from the corners of the room. [. . . ] If it is necessary to return your speaker to the factory, please ship it prepaid. After it has been repaired, we will return it freight prepaid in the U. S. A. and Canada. 300 Jubilee Drive Peabody, MA 01960 U. S. A. [. . . ]