Owner's guide
Page 2
...Franc and the Arnolifiei? 3. Using 1-cur-Chanre IV. Connecting Other Equipment 12 A. Tape Recorders B. Source and Room Compensation Controls B. Adjusting the Source and Room Compensation Controls C. Speaker Placement D. Voltage Conversion C. In Case of Contents... B. Warranty 19 r..; '978 DOSE Ccrpo•aticn. Headphones and Conventional Speakers V. Introduction 3 II. Living with your BOSE 901 Speakers 14 A. Care and Maintenance VII. Connecting the Speakers 1. Using the Tape Monitor Circuit 2. PhasirgINHng 3. Using the Prea.rnp-OutiMain...
...Franc and the Arnolifiei? 3. Using 1-cur-Chanre IV. Connecting Other Equipment 12 A. Tape Recorders B. Source and Room Compensation Controls B. Adjusting the Source and Room Compensation Controls C. Speaker Placement D. Voltage Conversion C. In Case of Contents... B. Warranty 19 r..; '978 DOSE Ccrpo•aticn. Headphones and Conventional Speakers V. Introduction 3 II. Living with your BOSE 901 Speakers 14 A. Care and Maintenance VII. Connecting the Speakers 1. Using the Tape Monitor Circuit 2. PhasirgINHng 3. Using the Prea.rnp-OutiMain...
Owner's guide
Page 3
... READ THESE INSTRUCTIONS CAREFULLY. Unpack both cartons carefully. Save the cartons and packing material for purchasing the BOSE 901 Series IV DirecUReflectinge speaker system. If either of bringing superb musical reproduction into the home. Unpacking Instructions The 901 Series IV speaker system is found in this manual are important. The detailed installation and placement instructions found in the original...
... READ THESE INSTRUCTIONS CAREFULLY. Unpack both cartons carefully. Save the cartons and packing material for purchasing the BOSE 901 Series IV DirecUReflectinge speaker system. If either of bringing superb musical reproduction into the home. Unpacking Instructions The 901 Series IV speaker system is found in this manual are important. The detailed installation and placement instructions found in the original...
Owner's guide
Page 4
...you to develop around the speaker system. 1. Distances closer to place your speakers and would like more information, SECTION V (LIVING WITH YOUR BOSE 901 SPEAKERS) provides several additional suggestions for best sound, 2) connecting the speaker to your amplifying equipment, ...Ire 4 A. Best results will give excellent results in the "Part 1" container. Installation consists of the speaker. 4. Installation Your 901 Series IV speaker system consists of three parts: two speakers (marked "Part 1" and "Part 2") and an electronic Active Equalizer packed in most rooms. If ...
...you to develop around the speaker system. 1. Distances closer to place your speakers and would like more information, SECTION V (LIVING WITH YOUR BOSE 901 SPEAKERS) provides several additional suggestions for best sound, 2) connecting the speaker to your amplifying equipment, ...Ire 4 A. Best results will give excellent results in the "Part 1" container. Installation consists of the speaker. 4. Installation Your 901 Series IV speaker system consists of three parts: two speakers (marked "Part 1" and "Part 2") and an electronic Active Equalizer packed in most rooms. If ...
Owner's guide
Page 6
... "4" or "4 ohms" on the left channel amplifier output. (When connecting the 901 Series IV loudspeakers to the terminal marked "com," "negative," or "minus" on the receiver or amplifier should not be used . " to your room facing the speaker system. If two pairs of BOSE 901 loudspeakers. itNote: When operating your receiver or amplifier is required. These...
... "4" or "4 ohms" on the left channel amplifier output. (When connecting the 901 Series IV loudspeakers to the terminal marked "com," "negative," or "minus" on the receiver or amplifier should not be used . " to your room facing the speaker system. If two pairs of BOSE 901 loudspeakers. itNote: When operating your receiver or amplifier is required. These...
Owner's guide
Page 7
... location. A fuse kit containing fuses and holders can be inserted in an easily accessible location. BOSE Corporation recommends use of the room and repeat the connection procedure for the right amplifier channel. Be sure to the speaker connection diagram, the fuseholders should fail. Connect the fuseholders in series with a fast-blow, 3-amp fuse. f.
... location. A fuse kit containing fuses and holders can be inserted in an easily accessible location. BOSE Corporation recommends use of the room and repeat the connection procedure for the right amplifier channel. Be sure to the speaker connection diagram, the fuseholders should fail. Connect the fuseholders in series with a fast-blow, 3-amp fuse. f.
Owner's guide
Page 8
...your control amplifier. CONNECTING THE EQUALIZER IT IS MOST IMPORTANT THAT YOU FOLLOW THESE INSTRUCTIONS FOR OPTIMUM PERFORMANCE OF YOUR 901 SERIES IV SPEAKER SYSTEM. 1. When using conventional loudspeakers or headphones, the tape monitor circuit allows disconnection of these terminals allowing greater system... amplifers, preamplifiers, and receivers.t Using the tape monitor circuit has two advantages: When using this is important because conventional speakers and headphones should realize that the equalizer will tell you have a tape recorder, disconnect it were a tape recorder, ...
...your control amplifier. CONNECTING THE EQUALIZER IT IS MOST IMPORTANT THAT YOU FOLLOW THESE INSTRUCTIONS FOR OPTIMUM PERFORMANCE OF YOUR 901 SERIES IV SPEAKER SYSTEM. 1. When using conventional loudspeakers or headphones, the tape monitor circuit allows disconnection of these terminals allowing greater system... amplifers, preamplifiers, and receivers.t Using the tape monitor circuit has two advantages: When using this is important because conventional speakers and headphones should realize that the equalizer will tell you have a tape recorder, disconnect it were a tape recorder, ...
Owner's guide
Page 9
... CONNECTIONS L A t A L R - m. Turn the BALANCE control of your control am- Set the LOW FILTER control in the NORMAL position. I AND II SPEAKER SYSTEMS. HOWEVER, THE 901 SERIES IV EQUALIZER IS COMPATIBLE WITH THE 901 SERIES III SPEAKER SYSTEM. 9 With the system now playing, turn the TAPE MONITOR or TAPE FUNCTION switch on .) SKVI1g," 'erv.,2A r EQUALIZER AMPLIFIER CONNECTIONS...
... CONNECTIONS L A t A L R - m. Turn the BALANCE control of your control am- Set the LOW FILTER control in the NORMAL position. I AND II SPEAKER SYSTEMS. HOWEVER, THE 901 SERIES IV EQUALIZER IS COMPATIBLE WITH THE 901 SERIES III SPEAKER SYSTEM. 9 With the system now playing, turn the TAPE MONITOR or TAPE FUNCTION switch on .) SKVI1g," 'erv.,2A r EQUALIZER AMPLIFIER CONNECTIONS...
Owner's guide
Page 10
...;Out/Main-ln Circuit An alternate method of connecting the BOSE Active Equalizer makes use with one or two tape recorders in this manner, it is permanently wired into the circuit. (See SECTION IV.) If you are using conventional speakers or headphones. (See SECTION IV.) Due to these jacks. this method of your amplifier...
...;Out/Main-ln Circuit An alternate method of connecting the BOSE Active Equalizer makes use with one or two tape recorders in this manner, it is permanently wired into the circuit. (See SECTION IV.) If you are using conventional speakers or headphones. (See SECTION IV.) Due to these jacks. this method of your amplifier...
Owner's guide
Page 11
...the EQUALIZER OUTPUT terminals to the MAIN-IN terminals of the 901 Series IV system, optimum performance is obtained when all four speaker systems are identical. R 7I 1 0 0 0 0 I . Also, be certain to recheck your speakers. Note: Due to the spatial and spectral properties of ...integrated amplifier owner's instruction manual for the BOSE equalizer. These connection jacks can be repeated when using speakers having similar spatial characteristics, such as the Bose Direct/Reflectinge 601 or Model 501 speaker systems. These speaker systems have four-channel tape monitor or...
...the EQUALIZER OUTPUT terminals to the MAIN-IN terminals of the 901 Series IV system, optimum performance is obtained when all four speaker systems are identical. R 7I 1 0 0 0 0 I . Also, be certain to recheck your speakers. Note: Due to the spatial and spectral properties of ...integrated amplifier owner's instruction manual for the BOSE equalizer. These connection jacks can be repeated when using speakers having similar spatial characteristics, such as the Bose Direct/Reflectinge 601 or Model 501 speaker systems. These speaker systems have four-channel tape monitor or...
Owner's guide
Page 13
... (in Steps 2 and 3 of each channel "Y" connector. control amplifier in the OFF or NORMAL position when playin conventional speakers or headphones with your 901s, place the tape monitor of "Y" connectors and any further connection advice. 1: NOTE: Contact your control amplifier. 4. connect ... recorder with your tape recorder without the equalizer. tAny speaker system other than the BOSE III or IV system. Your tape recorder will then be connected directly to the unused tape monitor input connections of the 90 speakers. With the remaining output from each "Y" connector as ...
... (in Steps 2 and 3 of each channel "Y" connector. control amplifier in the OFF or NORMAL position when playin conventional speakers or headphones with your 901s, place the tape monitor of "Y" connectors and any further connection advice. 1: NOTE: Contact your control amplifier. 4. connect ... recorder with your tape recorder without the equalizer. tAny speaker system other than the BOSE III or IV system. Your tape recorder will then be connected directly to the unused tape monitor input connections of the 90 speakers. With the remaining output from each "Y" connector as ...
Owner's guide
Page 14
... designed from a radically different vantage point. Improvements in sound reproduction, BOSE Corporation has carried out an extensive program examining the acoustic properties of a wide range of listening rooms. The development of the 901 Series IV loudspeaker is to 400 Hz range. ties make the 901 Series IV speaker system unusually flexible with the LOW FREQUENCY CONTROL that begins...
... designed from a radically different vantage point. Improvements in sound reproduction, BOSE Corporation has carried out an extensive program examining the acoustic properties of a wide range of listening rooms. The development of the 901 Series IV loudspeaker is to 400 Hz range. ties make the 901 Series IV speaker system unusually flexible with the LOW FREQUENCY CONTROL that begins...
Owner's guide
Page 15
...the extreme left , slowly move the knob until the balance of suppor instructions are provided with the pedestals for connectin and mounting the speaker system, using the four predrille holes (A) in removing record or turntable rumble. Starting with the control set at the extreme left ,...placement idea is deep enough to reduce the lowest two octaves of children. 15 Many people choose the attractive pedestals available wit the 901 Series IV System. Note that since no room is typical, it is your adjustment of these controls that has sustained music over several times over...
...the extreme left , slowly move the knob until the balance of suppor instructions are provided with the pedestals for connectin and mounting the speaker system, using the four predrille holes (A) in removing record or turntable rumble. Starting with the control set at the extreme left ,...placement idea is deep enough to reduce the lowest two octaves of children. 15 Many people choose the attractive pedestals available wit the 901 Series IV System. Note that since no room is typical, it is your adjustment of these controls that has sustained music over several times over...
Owner's guide
Page 16
... and place them into the listening room. The speaker system weighs 35 pounds and care should be directed downward by BOSE to eliminate echoes and standing waves. Insert the feet with the center terminal found on the 901 Series Ill and IV Loud• speaker. The unique controls on your listening room, the sound can be...
... and place them into the listening room. The speaker system weighs 35 pounds and care should be directed downward by BOSE to eliminate echoes and standing waves. Insert the feet with the center terminal found on the 901 Series Ill and IV Loud• speaker. The unique controls on your listening room, the sound can be...
Owner's guide
Page 17
...COMPENSATION LOW FREQUENCY CONTROL: Continuously adjustable slider, mt 8 dB adjustment over band from the wall behind the speaker; Part 2, 43.5 lbs. SPEAKER COMPLEMENT: Nine matched full-range speakers, utilizing aluminum helically wound voice coils; The Active Equalizer TAPE MONITOR SWITCH: Replaces tape monitor switch on ... connected in non-commercial applications, providing the fusing recommendations are followed. 5. The system Is packed in series. HIGH FREQUENCY CONTROL: Continuously adjustable slider, shelving control with range of speaker cabinet for each driver;
...COMPENSATION LOW FREQUENCY CONTROL: Continuously adjustable slider, mt 8 dB adjustment over band from the wall behind the speaker; Part 2, 43.5 lbs. SPEAKER COMPLEMENT: Nine matched full-range speakers, utilizing aluminum helically wound voice coils; The Active Equalizer TAPE MONITOR SWITCH: Replaces tape monitor switch on ... connected in non-commercial applications, providing the fusing recommendations are followed. 5. The system Is packed in series. HIGH FREQUENCY CONTROL: Continuously adjustable slider, shelving control with range of speaker cabinet for each driver;
Owner's guide
Page 18
... Technical Information B. 110.220 VAC VOLTAGE CONVERSION The BOSE Series IV Equalizer is designed to operate on one speaker sounds defective, DO NOT switch the speaker cables, as this manual. If the trouble still persists, contact your 901s are not convertable to 240 volt operation except by ...Low Filter switch "In," you suspect that the system operates properly with an oilrubbed walnut veneer finish. CARE AND MAINTENANCE Your 901 speaker cabinets and equalizer are operating at the amplifier output and reconnect to the amplifier channel operating correctly. (This can be sure ...
... Technical Information B. 110.220 VAC VOLTAGE CONVERSION The BOSE Series IV Equalizer is designed to operate on one speaker sounds defective, DO NOT switch the speaker cables, as this manual. If the trouble still persists, contact your 901s are not convertable to 240 volt operation except by ...Low Filter switch "In," you suspect that the system operates properly with an oilrubbed walnut veneer finish. CARE AND MAINTENANCE Your 901 speaker cabinets and equalizer are operating at the amplifier output and reconnect to the amplifier channel operating correctly. (This can be sure ...