Owner's guide
Page 3
... 1" and Part 2." Repack the speaker(s) in this manual are important. Unpack both cartons carefully. Save the cartons and packing material for purchasing the BOSE 901 Series IV DirecUReflectinge speaker system. The active equalizer is the culmination of many years of research dedicated to the art of bringing superb musical reproduction into the home. Introduction Thank you...
... 1" and Part 2." Repack the speaker(s) in this manual are important. Unpack both cartons carefully. Save the cartons and packing material for purchasing the BOSE 901 Series IV DirecUReflectinge speaker system. The active equalizer is the culmination of many years of research dedicated to the art of bringing superb musical reproduction into the home. Introduction Thank you...
Owner's guide
Page 4
... 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, and 3) connecting the equalizer to achieve optimum performance. (See SECTION V). If you to your... electronic Active Equalizer packed in placing the speaker cabinets will be obtained with a live performance. Distances closer to 18" from the reflecting wall. The speakers should be at least 18" above the floor or below the ceiling (see Figure 1). Installation Your 901 Series IV speaker...
... 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, and 3) connecting the equalizer to achieve optimum performance. (See SECTION V). If you to your... electronic Active Equalizer packed in placing the speaker cabinets will be obtained with a live performance. Distances closer to 18" from the reflecting wall. The speakers should be at least 18" above the floor or below the ceiling (see Figure 1). Installation Your 901 Series IV speaker...
Owner's guide
Page 8
... in this section can be due to your equipment as the "control amplifier." 8 Referring to FIGURE 4, connect the Active Equalizer according to the LEFT or "A" channel of the tape monitor circuit of your unit has any additional switching flexibility. When... TAPE RECORD connection of these terminals allowing greater system flexibility if re- CONNECTING THE EQUALIZER IT IS MOST IMPORTANT THAT YOU FOLLOW THESE INSTRUCTIONS FOR OPTIMUM PERFORMANCE OF YOUR 901 SERIES IV SPEAKER SYSTEM. 1. Some recently j introduced units now feature switching facilities called Tape Monitor...
... in this section can be due to your equipment as the "control amplifier." 8 Referring to FIGURE 4, connect the Active Equalizer according to the LEFT or "A" channel of the tape monitor circuit of your unit has any additional switching flexibility. When... TAPE RECORD connection of these terminals allowing greater system flexibility if re- CONNECTING THE EQUALIZER IT IS MOST IMPORTANT THAT YOU FOLLOW THESE INSTRUCTIONS FOR OPTIMUM PERFORMANCE OF YOUR 901 SERIES IV SPEAKER SYSTEM. 1. Some recently j introduced units now feature switching facilities called Tape Monitor...
Owner's guide
Page 9
... 901 SERIES IV AND III EQUALIZERS ARE NOT COMPATIBLE WITH THE 901 SERIES I TAPE RECORDER CONNECTIONS L A t A L R - Place the TAPE MONITOR or TAPE FUNCTION switch of the equalizer in the NORMAL or OUT position. NOTE 1: THE TAPE MONITOR OF YOUR CONTROL AMPLIFIER MUST BE LEFT "ON" FOR THE ACTIVE EQUALIZER ... plifier and observe that the pilot light on . (Be certain that the equalizer is plugged into the system. I AND II SPEAKER SYSTEMS. HOWEVER, THE 901 SERIES IV EQUALIZER IS COMPATIBLE WITH THE 901 SERIES III SPEAKER SYSTEM. 9 If the sound does not stop . With the ...
... 901 SERIES IV AND III EQUALIZERS ARE NOT COMPATIBLE WITH THE 901 SERIES I TAPE RECORDER CONNECTIONS L A t A L R - Place the TAPE MONITOR or TAPE FUNCTION switch of the equalizer in the NORMAL or OUT position. NOTE 1: THE TAPE MONITOR OF YOUR CONTROL AMPLIFIER MUST BE LEFT "ON" FOR THE ACTIVE EQUALIZER ... plifier and observe that the pilot light on . (Be certain that the equalizer is plugged into the system. I AND II SPEAKER SYSTEMS. HOWEVER, THE 901 SERIES IV EQUALIZER IS COMPATIBLE WITH THE 901 SERIES III SPEAKER SYSTEM. 9 If the sound does not stop . With the ...
Owner's guide
Page 10
...functions for further recommendations). 3. However, this method of connection permanently connects the equalizer in this manner, it is suggested that the gain controls of connecting the BOSE Active Equalizer makes use with one or two tape recorders in the conventional manner. this... connection method involves using conventional speakers or headphones. (See SECTION IV.) Due to the circuitry characteristics of the equalizer immediately before the power amplifier...
...functions for further recommendations). 3. However, this method of connection permanently connects the equalizer in this manner, it is suggested that the gain controls of connecting the BOSE Active Equalizer makes use with one or two tape recorders in the conventional manner. this... connection method involves using conventional speakers or headphones. (See SECTION IV.) Due to the circuitry characteristics of the equalizer immediately before the power amplifier...
Owner's guide
Page 11
... amplifier owner's instruction manual for separating the main and preamplifier sections of 901s are used, two active equalizers are required. If two pairs of the unit. (This is usually accomplished by Bose 'to recheck your speakers. If conventional speakers are not used in connection...this manual before proceeding. For separate components, connect the equalizer after the output of connection, do not use standard connection cables and connect the input to the spatial and spectral properties of the 901 Series IV system, optimum performance is connected in the NORMAL position....
... amplifier owner's instruction manual for separating the main and preamplifier sections of 901s are used, two active equalizers are required. If two pairs of the unit. (This is usually accomplished by Bose 'to recheck your speakers. If conventional speakers are not used in connection...this manual before proceeding. For separate components, connect the equalizer after the output of connection, do not use standard connection cables and connect the input to the spatial and spectral properties of the 901 Series IV system, optimum performance is connected in the NORMAL position....
Owner's guide
Page 12
...THE BOSE ACTIVE EQUALIZER, NOT TO THE UNUSED TAPE MONITOR ON YOUR RECEIVER. YS EQUALIZER AMPLIFIER...equalizer to FIGURE 7 and follow the next five steps carefully. 1. To play the tape recorder, simply place the TAPE switch on the equalizer...channel TAPE IN jack on the equalizer to the RIGHT or "B" ...IV. Refer to the LEFT or "A" channel OUTPUT jack of a tape recorder. t9..; R L ar7P.7 fl INP.T OUTPUT :raj 21.Wiltifea L rt INPUT TAPE RECORDER 12 TAPE RECORDERS Since the Active Equalizer... is connected to the RIGHT or "B" channel OUTPUT jack on the equalizer ...
...THE BOSE ACTIVE EQUALIZER, NOT TO THE UNUSED TAPE MONITOR ON YOUR RECEIVER. YS EQUALIZER AMPLIFIER...equalizer to FIGURE 7 and follow the next five steps carefully. 1. To play the tape recorder, simply place the TAPE switch on the equalizer...channel TAPE IN jack on the equalizer to the RIGHT or "B" ...IV. Refer to the LEFT or "A" channel OUTPUT jack of a tape recorder. t9..; R L ar7P.7 fl INP.T OUTPUT :raj 21.Wiltifea L rt INPUT TAPE RECORDER 12 TAPE RECORDERS Since the Active Equalizer... is connected to the RIGHT or "B" channel OUTPUT jack on the equalizer ...
Owner's guide
Page 13
...by placing the tape monitor switch of you wish to realize that the BOSE Active Equalizer it troduces substantial boost in Steps 2 and 3 of your 901 equalizer in the monitor position (in) using the equalizer (for conventional speakers or headphones) and your control amplifier has two tape ... will then be connected directly to match the power response of your tape recorder without the equalizer. To play your tape recorder. 2. tAny speaker system other than the BOSE III or IV system. Connect "Y" connectors to the unused tape monitor input connections of "Y" connectors and any...
...by placing the tape monitor switch of you wish to realize that the BOSE Active Equalizer it troduces substantial boost in Steps 2 and 3 of your 901 equalizer in the monitor position (in) using the equalizer (for conventional speakers or headphones) and your control amplifier has two tape ... will then be connected directly to match the power response of your tape recorder without the equalizer. To play your tape recorder. 2. tAny speaker system other than the BOSE III or IV system. Connect "Y" connectors to the unused tape monitor input connections of "Y" connectors and any...
Owner's guide
Page 14
... without any speaker system will adjust the extreme highs out of the amplifier used with the 901 Series IV. As part of its ongoing research in sound reproduction, BOSE Corporation has carried out an extensive program examining the acoustic properties of a wide range of ... used with respect to vary dramatically as a function of room acoustics. V. A. SOURCE AND ROOM COMPENSATION CONTROLS The 901 Series IV Active Equalizer Controls have also made possible further improvements in achieving this problem with two new controls called Source and Room Compensation Controls. The ...
... without any speaker system will adjust the extreme highs out of the amplifier used with the 901 Series IV. As part of its ongoing research in sound reproduction, BOSE Corporation has carried out an extensive program examining the acoustic properties of a wide range of ... used with respect to vary dramatically as a function of room acoustics. V. A. SOURCE AND ROOM COMPENSATION CONTROLS The 901 Series IV Active Equalizer Controls have also made possible further improvements in achieving this problem with two new controls called Source and Room Compensation Controls. The ...
Owner's guide
Page 15
...lowest two octaves of the sound without changing the deep bass or midrange. Many people choose the attractive pedestals available wit the 901 Series IV System. B. Starting with the control at the extreme left , slowly move the HIGH FREQUENCY Control over the extremes of the..., it will notice a dramatic change in the speaker bottom. the necessary distances behind and to its effect. LOW FILTER CONTROL The 901 Active Equalizer features a newly-designed LOW FILTER Control. ADJUSTING THE LOW AND HIGH FREQUENCY SOURCE AND ROOM COMPENSATION CONTROLS 1. If you can be ...
...lowest two octaves of the sound without changing the deep bass or midrange. Many people choose the attractive pedestals available wit the 901 Series IV System. B. Starting with the control at the extreme left , slowly move the HIGH FREQUENCY Control over the extremes of the..., it will notice a dramatic change in the speaker bottom. the necessary distances behind and to its effect. LOW FILTER CONTROL The 901 Active Equalizer features a newly-designed LOW FILTER Control. ADJUSTING THE LOW AND HIGH FREQUENCY SOURCE AND ROOM COMPENSATION CONTROLS 1. If you can be ...
Owner's guide
Page 17
The system Is packed in series. Carton Dimensions: 25%" x 16" x 14%" 2. Percentages of speaker cabinet for each driver; SPEAKER COMPLEMENT: Nine matched full-range speakers, utilizing aluminum helically wound voice coils; ... kHz. SPECIFICATIONS 1. Shipping Weight: Part 1, 45.5 lbs. one speaker directed into the listening area to provide the optimum ratio of reflected to 400 Hz. The Active Equalizer TAPE MONITOR SWITCH: Replaces tape monitor switch on amplifier size when used in tape monitor circuit. Power Handling Minimum Recommended Power: 10 watts rms per...
The system Is packed in series. Carton Dimensions: 25%" x 16" x 14%" 2. Percentages of speaker cabinet for each driver; SPEAKER COMPLEMENT: Nine matched full-range speakers, utilizing aluminum helically wound voice coils; ... kHz. SPECIFICATIONS 1. Shipping Weight: Part 1, 45.5 lbs. one speaker directed into the listening area to provide the optimum ratio of reflected to 400 Hz. The Active Equalizer TAPE MONITOR SWITCH: Replaces tape monitor switch on amplifier size when used in tape monitor circuit. Power Handling Minimum Recommended Power: 10 watts rms per...