Boston Acoustics 261 manual

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Table of contents for the manual

  • Page 1

    25 1 26 1 Designer Series In-W all Speaker Systems[...]

  • Page 2

    2 Specifications 251 261 Frequency Response (±3dB) 66 – 20,000Hz 58 – 20,000Hz Recommended Amplifier Power 10 – 1 00 watts 1 0 – 1 00 watts Nominal Impedance 8 ohms 8 ohms Sensitivity [1 watt (2.83v) at 1m] 89dB 90dB T weeter 3 ⁄ 4 " (19mm) dome 3 ⁄ 4 " (19mm) dome Bass Unit 5 1 ⁄ 4 " (135mm) copolymer 6 1 ⁄ 2 &quo[...]

  • Page 3

    3 Installation Instructions IMPORT ANT : This manual assumes the installer possesses skill in the proper use of hand and power tools, a knowledge of local building and fire codes, and a familiarity with the envir onment behind the wall or ceiling in which the speakers will be installed. Quantity Description 2 Designer Series Speakers 2 Mounting Br[...]

  • Page 4

    4 Placement Since the speaker installation is permanent and the furniture placement may not be, the user should first determine the best long-term location — one that will accommodate future r elocation of the furniture in the r oom, while still allowing for an unobstructed sound path from the speakers to the listening area. W ithin reason, wher[...]

  • Page 5

    Painting the Speakers If you intend to paint the speakers, it’ s best to do so before installation. 1. Remove the speaker grille. Carefully pry at each corner with an awl or a small screwdriver . 2. Use the form-fitting painting mask provided to paint the housing. Cover the slots with masking tape. 3. After painting, remove the mask by car efull[...]

  • Page 6

    6 Pr eparing for Installation Map out the wiring paths from the speakers to the amplifier . We recommend 18-gauge wir e for runs up to 25 feet, and 16-gauge or thicker for longer runs. Be sure the speaker wir e does not rest or rub against any sharp or pointed objects. The speakers should be mounted on a flat surface to form a good seal between t[...]

  • Page 7

    3. Remove the speaker grille. Carefully pry each corner with an awl or a small screwdriver . 4. Prepar e the speaker/bracket assembly for installation as shown. For new construction, an optional bracket (Model 35UB for the 251, Model 36CB for the 261) is available from your Boston Acoustics dealer . 5. Route the speaker wire thr ough the cable clam[...]

  • Page 8

    Listening Levels and Power -Handling The power recommendation for the speakers assumes that you will operate the amplifier in a way that will not produce distortion. Even our rugged speakers can be damaged by an amplifier if it is producing distortion. If you hear a harsh, gritty noise, turn down the volume. Prolonged or r epeated operation of yo[...]