Owner's guide
Page 2
... Right Amplifier E. 901 SERIESIC OWNER'S MANUAL TABLE OF CONTENTS I (Using PRE•AMP OUT and MAIN IN Connections with Receiver or Integrated Amplifier) 3. III. Alternate Method I . The Only System Better Than A Pair of 901s In Case of Your 901 Speakers A. VIII. Connecting The Equalizer 1. Alternate Method II (Using separate PREAMPLIFIER and POWER AMPLIFIER) 4. Adjusting The Equalizer Controls C. Phasing Your 901 Speakers 3. Alternate Method III (Using FOUR•CHANNEL DECODER) D. V. Introduction Unpacking Your 901s Installation of Your 901s A. Adjusting Speaker Placement...
... Right Amplifier E. 901 SERIESIC OWNER'S MANUAL TABLE OF CONTENTS I (Using PRE•AMP OUT and MAIN IN Connections with Receiver or Integrated Amplifier) 3. III. Alternate Method I . The Only System Better Than A Pair of 901s In Case of Your 901 Speakers A. VIII. Connecting The Equalizer 1. Alternate Method II (Using separate PREAMPLIFIER and POWER AMPLIFIER) 4. Adjusting The Equalizer Controls C. Phasing Your 901 Speakers 3. Alternate Method III (Using FOUR•CHANNEL DECODER) D. V. Introduction Unpacking Your 901s Installation of Your 901s A. Adjusting Speaker Placement...
Owner's guide
Page 3
... the BOSE 901 Series 31Direct/Reflecting r speaker system. INSTALLATION OF YOUR 901s A. I 3 Pegboard, cork. The detailed installation and placement instructions are the back of music reproduction provided by the listening pleasure which might otherwise present problems. (See Section IV B.I I 18".36" a 2 L 4' 15' 18" 36"» DO NOT PLACE HERE Mail way point between ceiling and flood T 18".36" FIG. 1 • The reflecting wall ideally...
... the BOSE 901 Series 31Direct/Reflecting r speaker system. INSTALLATION OF YOUR 901s A. I 3 Pegboard, cork. The detailed installation and placement instructions are the back of music reproduction provided by the listening pleasure which might otherwise present problems. (See Section IV B.I I 18".36" a 2 L 4' 15' 18" 36"» DO NOT PLACE HERE Mail way point between ceiling and flood T 18".36" FIG. 1 • The reflecting wall ideally...
Owner's guide
Page 4
... appear to properly disperse. 1. CONNECTING THE SPEAKERS 1. In general, you are in phase with a separation of power can be identified at least 18 inches from the side walls or from the floor. 2. B. This wire usually has a ribbed line running along one or two pairs of the sound into adjacent rooms. 4. WIRE LENGTHS FOR EACH SPEAKER Type of Speaker Hookup Wire 18 gauge zipcord (or...
... appear to properly disperse. 1. CONNECTING THE SPEAKERS 1. In general, you are in phase with a separation of power can be identified at least 18 inches from the side walls or from the floor. 2. B. This wire usually has a ribbed line running along one or two pairs of the sound into adjacent rooms. 4. WIRE LENGTHS FOR EACH SPEAKER Type of Speaker Hookup Wire 18 gauge zipcord (or...
Owner's guide
Page 5
..." ( -41 If stranded wire is used, be used for convenience. (For two pairs of BOSE 901s. The fuse should be connected in series with the Part 1 portion of your 901 system. use on the left channel amplifier output. The use of the differing terminology which various manufacturers use two 6-ampere fuses.) C. PREFERRED METHOD (Using The Tape Monitor Circuit) To provide the proper balance at all amplifier and speaker terminals are tightened securely...
..." ( -41 If stranded wire is used, be used for convenience. (For two pairs of BOSE 901s. The fuse should be connected in series with the Part 1 portion of your 901 system. use on the left channel amplifier output. The use of the differing terminology which various manufacturers use two 6-ampere fuses.) C. PREFERRED METHOD (Using The Tape Monitor Circuit) To provide the proper balance at all amplifier and speaker terminals are tightened securely...
Owner's guide
Page 6
... INTEGRATED AMPLIFIER. d. receive:, or preamplifier instructions and refer to the section describing steps for connecting a tape recorder to the instructions in the best signal to the RIGHT or "B•" channel TAPE MONITOR terminal of the cables supplied with virtually all power to the different nomenclature which various manufacturers employ. Remember that the Equalizer will automatically be used with the Equalizer, connect the RIGHT channel OUTPUT...
... INTEGRATED AMPLIFIER. d. receive:, or preamplifier instructions and refer to the section describing steps for connecting a tape recorder to the instructions in the best signal to the RIGHT or "B•" channel TAPE MONITOR terminal of the cables supplied with virtually all power to the different nomenclature which various manufacturers employ. Remember that the Equalizer will automatically be used with the Equalizer, connect the RIGHT channel OUTPUT...
Owner's guide
Page 7
... be playing and the Equalizer pilot light will be corrected before proceeding further. THE NEXT SEVEN STEPS ARE TESTS WHICH MUST BE PERFORMED TO INSURE PROPER OPERATION AND CORRECT INSTALLATION. Place the TAPE MONITOR or TAPE FUNCTION switch on , it is operating properly. Recheck Steps a through I . Turn the entire system on your control amplifier in the MONITOR position. m. n. h. If the sound does...
... be playing and the Equalizer pilot light will be corrected before proceeding further. THE NEXT SEVEN STEPS ARE TESTS WHICH MUST BE PERFORMED TO INSURE PROPER OPERATION AND CORRECT INSTALLATION. Place the TAPE MONITOR or TAPE FUNCTION switch on , it is operating properly. Recheck Steps a through I . Turn the entire system on your control amplifier in the MONITOR position. m. n. h. If the sound does...
Owner's guide
Page 8
... (consult your receiver and integrated amplifier owner's instruction manual for recommendations). 6 One disadvantage of this method of connection is that it is difficult to your amplifier manufacturer's owner's manual for separating the main and preamplifier sections of connecting the BOSE Active Equalizer makes use conventional speakers or headphones, because the Equal• izer is permanently in the circuit. 2. ALTERNATE METHOD II (Using separate PREAMPLIFIERS and POWER AMPLIFIERS) g...g 2sts7,--t a .(113...
... (consult your receiver and integrated amplifier owner's instruction manual for recommendations). 6 One disadvantage of this method of connection is that it is difficult to your amplifier manufacturer's owner's manual for separating the main and preamplifier sections of connecting the BOSE Active Equalizer makes use conventional speakers or headphones, because the Equal• izer is permanently in the circuit. 2. ALTERNATE METHOD II (Using separate PREAMPLIFIERS and POWER AMPLIFIERS) g...g 2sts7,--t a .(113...
Owner's guide
Page 9
... monitoring switches from being used. Turn all of all power off. c. Similarly, connect the LEFT channel TAPE IN terminal on the recorder. Similarly, connect the LEFT channel TAPE OUT terminal on the Equalizer to the LEFT or "A" channel INPUT (or LINE IN) terminal on the Equalizer to the LEFT or "A" channel OUTPUT terminal of these controls are being turned on the Equalizer for control of the recorder. Installation...
... monitoring switches from being used. Turn all of all power off. c. Similarly, connect the LEFT channel TAPE IN terminal on the recorder. Similarly, connect the LEFT channel TAPE OUT terminal on the Equalizer to the LEFT or "A" channel INPUT (or LINE IN) terminal on the Equalizer to the LEFT or "A" channel OUTPUT terminal of these controls are being turned on the Equalizer for control of the recorder. Installation...
Owner's guide
Page 10
... floor, ceiling, or side walls. IV. ADJUSTING SPEAKER PLACEMENT There are played while the Equalizer is too broad, or if there appears to match the power response of the room. In all cases, DO NOT place the speakers closer than 4 feet. / / / / /I / FIG. 7 10 GETTING THE MOST OUT OF YOUR 901 SPEAKERS A. If the stereo image of the music is recommended that the BOSE 901 Active Equalizer...
... floor, ceiling, or side walls. IV. ADJUSTING SPEAKER PLACEMENT There are played while the Equalizer is too broad, or if there appears to match the power response of the room. In all cases, DO NOT place the speakers closer than 4 feet. / / / / /I / FIG. 7 10 GETTING THE MOST OUT OF YOUR 901 SPEAKERS A. If the stereo image of the music is recommended that the BOSE 901 Active Equalizer...
Owner's guide
Page 11
..., this manner by rotating the speakers. Keep in a high ceiling room, the sound can be directed downward by angling the rear of doorways, and/or small children. therefore, use hardware strong enough to support this switch from older turntables or recordings. 11 The sound will allow you are attached to direct sound away from the ceiling. ADJUSTING THE EQUALIZER CONTROLS 901 ACTIVE EQUALIZER • rm.! COMM...
..., this manner by rotating the speakers. Keep in a high ceiling room, the sound can be directed downward by angling the rear of doorways, and/or small children. therefore, use hardware strong enough to support this switch from older turntables or recordings. 11 The sound will allow you are attached to direct sound away from the ceiling. ADJUSTING THE EQUALIZER CONTROLS 901 ACTIVE EQUALIZER • rm.! COMM...
Owner's guide
Page 12
...40 CONTowi FREQUENCY RESPONSE CONTOUR OF THE 805E 901 SERIES ii ACTIVE COIJALIZER WITH THE HIGH FREOUENCV SWITCH IN THE NORMAL POSITION 20 I50 100 500 1,000 5.000 10.000 20K FIG. 9 ECIVALIZI• PERSONS( IN OttiOELS TO TRE RESPONSE oOrr THE ECvAL.ZE A A, T. This control may be used as "...switch labeled TREBLE LEVEL. tion as a scratch filter, or to modify the response of the various control settings upon the frequency response (taking the normal or "dotted" posi. ALL SwiTcHts IN THEIS ' , 0"." This control has 5 positions. The effect of some recordings which are playing...
...40 CONTowi FREQUENCY RESPONSE CONTOUR OF THE 805E 901 SERIES ii ACTIVE COIJALIZER WITH THE HIGH FREOUENCV SWITCH IN THE NORMAL POSITION 20 I50 100 500 1,000 5.000 10.000 20K FIG. 9 ECIVALIZI• PERSONS( IN OttiOELS TO TRE RESPONSE oOrr THE ECvAL.ZE A A, T. This control may be used as "...switch labeled TREBLE LEVEL. tion as a scratch filter, or to modify the response of the various control settings upon the frequency response (taking the normal or "dotted" posi. ALL SwiTcHts IN THEIS ' , 0"." This control has 5 positions. The effect of some recordings which are playing...
Owner's guide
Page 13
... the frequency response throughout the entire treble range. An overly •live" room has hard walls and little in front of speakers. The BOSE 901 can be acoustically "dead." A "dead" room can be most pleased with a sound absorbent material setting the TREBLE LEVEL control to Position 4 or 5 will be greatly improved by a sound system. SELECTING THE RIGHT AMPLIFIER Most modern amplifiers or receivers will...
... the frequency response throughout the entire treble range. An overly •live" room has hard walls and little in front of speakers. The BOSE 901 can be acoustically "dead." A "dead" room can be most pleased with a sound absorbent material setting the TREBLE LEVEL control to Position 4 or 5 will be greatly improved by a sound system. SELECTING THE RIGHT AMPLIFIER Most modern amplifiers or receivers will...
Owner's guide
Page 14
... obtain a Return Authorization Number which must be sure that you should connect each pair of speakers to the 4 OHM terminals of your power amplifier. TECHNICAL INFORMATION A. To connect the second pair of speakers, simply connect the 8 OHMS terminal of the second left speaker to the 8 OHMS terminal of the first left and right channel speaker cables at the BOSE Factory without the Equal. you return only that part of the system...
... obtain a Return Authorization Number which must be sure that you should connect each pair of speakers to the 4 OHM terminals of your power amplifier. TECHNICAL INFORMATION A. To connect the second pair of speakers, simply connect the 8 OHMS terminal of the second left speaker to the 8 OHMS terminal of the first left and right channel speaker cables at the BOSE Factory without the Equal. you return only that part of the system...
Owner's guide
Page 15
... WALNUT FACINGS The BOSE 901 is available with the 901 Continental. Walnut facings are available as a separate add-on kit and are available for speech and music: 270 watts rms into 8 ohms E. The small grille panel on any frequency: 50 watts Minimum recommended amplifier power: 25 watts rms per channel into 8 ohms Peak power handling ability (less than 100 ohms Minimum Load Impedance: 5k ohms Maximum Output Voltage: 4.0 volts Maximum...
... WALNUT FACINGS The BOSE 901 is available with the 901 Continental. Walnut facings are available as a separate add-on kit and are available for speech and music: 270 watts rms into 8 ohms E. The small grille panel on any frequency: 50 watts Minimum recommended amplifier power: 25 watts rms per channel into 8 ohms Peak power handling ability (less than 100 ohms Minimum Load Impedance: 5k ohms Maximum Output Voltage: 4.0 volts Maximum...
Owner's guide
Page 16
... WILL ARRANGE FOR REPAIRS. Our responsibility is used in Owner's Manual. 3. Failure to the BOSE Factory or BOSE Factory -Authorized Service Agencies. IF IT BECOMES NECESSARY TO RETURN YOUR UNIT TO THE FACTORY, DO NOT RETURN YOUR SPEAKERS WITHOUT FIRST RECEIVING A RETURN AUTHORIZATION NUMBER. ....1111Sr BOSE CORPORATION • THE...THE UNIT TO THE FACTORY. FIVE YEAR WARRANTY We warrant the BOSE 901 speaker system to the number on the completed Warranty Card on file with instructions in accordance with BOSE. removed, or otherwise obliterated, and must be free from an authorized...
... WILL ARRANGE FOR REPAIRS. Our responsibility is used in Owner's Manual. 3. Failure to the BOSE Factory or BOSE Factory -Authorized Service Agencies. IF IT BECOMES NECESSARY TO RETURN YOUR UNIT TO THE FACTORY, DO NOT RETURN YOUR SPEAKERS WITHOUT FIRST RECEIVING A RETURN AUTHORIZATION NUMBER. ....1111Sr BOSE CORPORATION • THE...THE UNIT TO THE FACTORY. FIVE YEAR WARRANTY We warrant the BOSE 901 speaker system to the number on the completed Warranty Card on file with instructions in accordance with BOSE. removed, or otherwise obliterated, and must be free from an authorized...
