Bose 601Series II Loud Owner's guide - Page 4

3. Play music containing deep bass notes through the system. If the speakers are phased correctly, the sound will appear to come from a point between the speakers with lull, natural bass response. 4. If the music is not localized between the speakers and/or is lacking in deep bass, reverse the corrections to one of the speakers and repeat the test. Check to be sure you are using the connection that produces the most powerful bass. 7. Fusing Any loudspeaker can be damaged if the amplifier driving it should fail. Damage may also occur by playing the speakers soloudly that they sound distorted.This can happen even with a low-powered amplifier or receiver. Your 601- speakers incorporate an automatic tweeter protection circuit which guards against certain types of electrical stress. Fusing will provide additional protection, and is recommended when using ampiliers rated at more than 100 watts RMS per channel. The fuseholders should be inserted into the + (positive) wire connecting each speaker to your amplifier or receiver (see Figure 2). 2-ampere, fast-blow Buss AGC Series or Littlefuse AG Series fuses are recommended. A fuse kit containing fuses and holders is available from the Bose' Customer Service Department, The Mountain, Framingham, Massachusetts 01701 for $5.00. Ask for Pan Number 108938-2. 8. Room Acoustics The acoustics of your listening room can affect the quaky of the sound reproduced by your 601 speakers. The following suggestions will help you to realize the ful potentialof the 601loudspeaker system. 1. Your 601 system works best when sound energy is allowed to develop "around" the speakers, rellecting off nearby walls and flooring. Hard materials such as wood, brick, glass, sheetrock and/or heavy paneing generally provide the most effective soundreflecting surfaces. Sound•absorbent furnishings (heavy drapes. etc.) should be kept away from the immediate vincinity of the speakers. 2. II your listening room contains few lurnishings with bare walls and floors, your music may sound unnaturally shrillor "bright' The additionof carpelfilo. wall hangings and/or drapes usually helps to solve this problem. Scatter these lurnishings evenly around the listening area for best results. 3. Rooms filled with heavily gulled furniture, wallto-wall carpeting and/or heavy drapes can absorb much of the high-frequency energy radiated by your speakers. Such rooms often make reproduced music sound dull and lifeless. By removing some of the absorbent furnishings, the tonal balance can be improved. 4. II your music appears to be lacking in bass, move the speakers closer to the rear wall and/or nearer to the corners of the listening room. Heavy. "booming" bass can be tamed by moving the speakers away from corners and walls. In all cases• follow the placement guidelines in Section 3 as closely as possible to assure a proper balance of reflected and direct sound energy. 5. Many problems with room acoustics can be solved by judicious use of the tone controls on your amplifier or receiver. Experiment with difierent settings to achieve a frequency balance that suits the acoustics of your listening room and your personal tastes. 9. Maintenance The walnut-grain vinyl cabinetry of your 601 speakers can be cleaned by wiping with a soft damp cloth and a mild detergent. The grille requires no special care al• though it may be carefully vacuumed it necessary. The 601 speaker employs a one-piece. acoustically transparent grille assemby, attached to the enclosure with snap-type fasteners.To remove the grille assembly, gently pry the bottom section away from the cabinet with your fingers. Then lift the folded-over top section oll the cabinet. Reverse this procedure to replace the grille. Do not use sharp objects to pry oll the grille as this could damage the enclosure finish. Important: Do not allow liquids to spill through the grille assembly. Also, do not place any object more than 25 pounds (11kg)on top of the enclosure.This can result in damage not covered by the warranty. 10. In Case Of Difficulty If you suspect a problem with your 601 speakers, please take the time to determine if the difficulty is in the speakers or in some other part of your music system. If one speaker sounds less brilliant than the other, make certain that no wires are touching the terminal on the back of the speaker. If one speaker sounds defective, do not switch the speaker cables, as this could damage the speaker. Disconnect the defective speakers wire at the amplifier output and reconnect it to the amplifier channel that is operating correctly. II the speaker that sounded defective now plays properly. the problem is not in the speaker or wiring. If trouble appears In both speakers, connect the speakers to another amplifier or receiver that is operat-, ing properly. If the speakers now operate correcly, the problem is not in the speakers. If trouble persists in one or both speakers, contact your authorized Bose dealer. He will verify any defects and arrange for service by a factory-authorized service agency or by 'he Bose factory. Bose Corporation willmake very effort to remedy any problem within the terms of the warranty at minimum inconvenience to you. • •