Owner's guide
Page 2
...'S MANUAL TABLE OF CONTENTS I (Using PRE•AMP OUT and MAIN IN Connections with Receiver or Integrated Amplifier) 3. V. Introduction Unpacking Your 901s Installation of Your 901 Speakers A. Connecting The Equalizer 1. Alternate Method II (Using separate PREAMPLIFIER and POWER AMPLIFIER) 4. IV. VII. Speaker Placement B. Connecting Headphones or Conventional Speakers Getting The Most Out of Your...
...'S MANUAL TABLE OF CONTENTS I (Using PRE•AMP OUT and MAIN IN Connections with Receiver or Integrated Amplifier) 3. V. Introduction Unpacking Your 901s Installation of Your 901 Speakers A. Connecting The Equalizer 1. Alternate Method II (Using separate PREAMPLIFIER and POWER AMPLIFIER) 4. IV. VII. Speaker Placement B. Connecting Headphones or Conventional Speakers Getting The Most Out of Your...
Owner's guide
Page 3
...enjoyment ex- II. THE ACTIVE EQUALIZER IS CONTAINED IN A CARDBOARD WEDGE FOUND IN PART 1. INSTALLATION OF YOUR 901s A. The angled (vee shaped) grille cloth panels are important. perienced with its unique shape, 9 drivers, and Active Equalizer incorporates a number of the 8OSE 901 speaker system... for possible use later.) If either the speakers or the Equalizer are visibly damaged when you for purchasing the BOSE 901 Series 31Direct/Reflecting r speaker system. The superior dispersion characteristics of the 901 allow considerable freedom of the speakers from the wall is designed...
...enjoyment ex- II. THE ACTIVE EQUALIZER IS CONTAINED IN A CARDBOARD WEDGE FOUND IN PART 1. INSTALLATION OF YOUR 901s A. The angled (vee shaped) grille cloth panels are important. perienced with its unique shape, 9 drivers, and Active Equalizer incorporates a number of the 8OSE 901 speaker system... for possible use later.) If either the speakers or the Equalizer are visibly damaged when you for purchasing the BOSE 901 Series 31Direct/Reflecting r speaker system. The superior dispersion characteristics of the 901 allow considerable freedom of the speakers from the wall is designed...
Owner's guide
Page 5
... left channel speaker output terminals of your amplifier or receiver. (If there is used, be used for convenience. (For two pairs of BOSE 901s. Connect the "8 OHMS" terminal on the left speaker to the "COM" terminal on the receiver or amplifier should fail. STANDARD RECEIVER/...STEP. 1. FIG.2 Start with the Part 1 portion of your room. Place it should be sure that all frequencies, the 901 Active Equalizer must be connected in series with either of the two wires in series with each speaker. A fuse holder, like a BUSS 3833.1 or a LITTELFUSE 356001, may be used . (See Section...
... left channel speaker output terminals of your amplifier or receiver. (If there is used, be used for convenience. (For two pairs of BOSE 901s. Connect the "8 OHMS" terminal on the left speaker to the "COM" terminal on the receiver or amplifier should fail. STANDARD RECEIVER/...STEP. 1. FIG.2 Start with the Part 1 portion of your room. Place it should be sure that all frequencies, the 901 Active Equalizer must be connected in series with either of the two wires in series with each speaker. A fuse holder, like a BUSS 3833.1 or a LITTELFUSE 356001, may be used . (See Section...
Owner's guide
Page 6
...READ THEM CAREFULLY. c. Consult your control amplifier. Turn off by the power switch of your control equipment so that the Equalizer connects like a recorder. 6 The 901 Equalizer is normally connected to your equipment. If the preceding steps are unclear, it from the rear panel of the... Equalizer to the system after the Equalizer has been installed. system before the final stage of your control amplifier. The connection method...
...READ THEM CAREFULLY. c. Consult your control amplifier. Turn off by the power switch of your control equipment so that the Equalizer connects like a recorder. 6 The 901 Equalizer is normally connected to your equipment. If the preceding steps are unclear, it from the rear panel of the... Equalizer to the system after the Equalizer has been installed. system before the final stage of your control amplifier. The connection method...
Owner's guide
Page 7
...possible, especially at low-volume leyels or with the indicated dots. If the sound does not stop . Since the system will be playing and the Equalizer pilot light will be on your control amplifier in Section III D. • 7 If you do not have a tape recorder, its connection to ... before proceeding further. It you do have a tape recorder, the installation of the 901 system is now complete, and the system is operating properly. Place the TAPE switch on your system, since the Equalizer has not yet been switched into an operating AC outlet by observing that they coincide ...
...possible, especially at low-volume leyels or with the indicated dots. If the sound does not stop . Since the system will be playing and the Equalizer pilot light will be on your control amplifier in Section III D. • 7 If you do not have a tape recorder, its connection to ... before proceeding further. It you do have a tape recorder, the installation of the 901 system is now complete, and the system is operating properly. Place the TAPE switch on your system, since the Equalizer has not yet been switched into an operating AC outlet by observing that they coincide ...
Owner's guide
Page 8
... gain controls that include separate preamplifiers and power amplifiers, between the preamplifier and power amplifier (See Fig. 5). Tape re- ALTERNATE METHOD II (Using separate PREAMPLIFIERS and POWER AMPLIFIERS) g...g 2sts7,--t a .(113•.... -77:L.'S ....,g17,7 in the conventional manner. Connect the PRE... or amplifier in ±f OD wow 41.10,1 V .I ILL:?:117, 0 FIG. 4 An alternate method of connecting the BOSE Active Equalizer makes use an additional pair of connection, leave the TAPE switch on their units. (This is permanently in systems that these controls...
... gain controls that include separate preamplifiers and power amplifiers, between the preamplifier and power amplifier (See Fig. 5). Tape re- ALTERNATE METHOD II (Using separate PREAMPLIFIERS and POWER AMPLIFIERS) g...g 2sts7,--t a .(113•.... -77:L.'S ....,g17,7 in the conventional manner. Connect the PRE... or amplifier in ±f OD wow 41.10,1 V .I ILL:?:117, 0 FIG. 4 An alternate method of connecting the BOSE Active Equalizer makes use an additional pair of connection, leave the TAPE switch on their units. (This is permanently in systems that these controls...
Owner's guide
Page 9
... are constructed to prevent both monitoring switches from being used. Connect the RIGHT channel TAPE IN terminal on the 901 Active Equalizer in either TAPE 1 or TAPE 2 will depend upon your associated equipment. Similarly, connect the LEFT channel TAPE...monitor functions providing the same monitoring features for the connection of the amplifier channels powering the 901 speakers. ALTERNATE METHOD Ill (Using FOUR-CHANNEL DECODERS) As previously stated, the BOSE Active Equalizer should be connected at the same time. d. Clad rims simii ... b. Pr•IrOV...
... are constructed to prevent both monitoring switches from being used. Connect the RIGHT channel TAPE IN terminal on the 901 Active Equalizer in either TAPE 1 or TAPE 2 will depend upon your associated equipment. Similarly, connect the LEFT channel TAPE...monitor functions providing the same monitoring features for the connection of the amplifier channels powering the 901 speakers. ALTERNATE METHOD Ill (Using FOUR-CHANNEL DECODERS) As previously stated, the BOSE Active Equalizer should be connected at the same time. d. Clad rims simii ... b. Pr•IrOV...
Owner's guide
Page 10
...from the floor, the ceiling, or the side walls. E. MORE IMPORTANTLY, HEADPHONES OR CONVENTIONAL SPEAKERS MAY BE DAMAGED BY PLAYING WITH THE BOSE 901 EQUALIZER CONNECTED IN THE CIRCUIT. This frequency range includes the fundamental tones of speaker placement on frequency response occurs in the low bass and high ... from the wall. Moving the vee of the speakers closer to match the power response of the music is recommended that the BOSE 901 Active Equalizer introduces substantial boost in the range below 100 Hz and above 3000 Hz to the wall than 12 inches will boost the response...
...from the floor, the ceiling, or the side walls. E. MORE IMPORTANTLY, HEADPHONES OR CONVENTIONAL SPEAKERS MAY BE DAMAGED BY PLAYING WITH THE BOSE 901 EQUALIZER CONNECTED IN THE CIRCUIT. This frequency range includes the fundamental tones of speaker placement on frequency response occurs in the low bass and high ... from the wall. Moving the vee of the speakers closer to match the power response of the music is recommended that the BOSE 901 Active Equalizer introduces substantial boost in the range below 100 Hz and above 3000 Hz to the wall than 12 inches will boost the response...
Owner's guide
Page 11
...adjacent room. (See Fig. 7.1 The 901s also can be adjusted by angling the rear of the 901 cabinet via decorative hooks or eyelets screwed into the cabinet. The sound will allow you wish more sound to adjust the Equalizer controls. These are playing loud musical material...bass content, move this is reflected off the rear wall. This control causes a uniform reduction in mind that each 901 weighs 33 pounds; ADJUSTING THE EQUALIZER CONTROLS 901 ACTIVE EQUALIZER • rm.! Additionally, the dispersion can be hung from the ceiling. We recommend using a three or four point...
...adjacent room. (See Fig. 7.1 The 901s also can be adjusted by angling the rear of the 901 cabinet via decorative hooks or eyelets screwed into the cabinet. The sound will allow you wish more sound to adjust the Equalizer controls. These are playing loud musical material...bass content, move this is reflected off the rear wall. This control causes a uniform reduction in mind that each 901 weighs 33 pounds; ADJUSTING THE EQUALIZER CONTROLS 901 ACTIVE EQUALIZER • rm.! Additionally, the dispersion can be hung from the ceiling. We recommend using a three or four point...
Owner's guide
Page 12
... FREQUENCY RESPONSE CONTOURS OF THE 805E 901 SERIES ii ACTIVE EOt/RuZER WITH THE miG. This control has 5 positions. If the control is moved to the DECREASE position, the frequency response of the system is decreased in rooms of the 901 Equalizer is the preferred position for use ... \-/ 20 50 100 500 1.000 5.000 I .0% -----\ 5 -., 4\ • 2 -----"j il Of Lex 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...
... FREQUENCY RESPONSE CONTOURS OF THE 805E 901 SERIES ii ACTIVE EOt/RuZER WITH THE miG. This control has 5 positions. If the control is moved to the DECREASE position, the frequency response of the system is decreased in rooms of the 901 Equalizer is the preferred position for use ... \-/ 20 50 100 500 1.000 5.000 I .0% -----\ 5 -., 4\ • 2 -----"j il Of Lex 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...
Owner's guide
Page 14
... a problem with your 901 system, it is packed in Two Cartons Marked "Part 1" and "Part 2" Weight: Part 1 - 44 pounds Part 2 - 42 pounds Carton Dimensions: 22-3/4- Units must appear on the outside of the carton when the unit is available at the BOSE Factory without the Equal. VI. Note: If...is connected in parallel with the first pair, a second Equalizer is the case, leave the BELOW 40 switch in the CONTOUR position for the recording you hear distortion with both speakers at the BOSE Factory. For this is not required. If this reason, the BOSE 901 is returned to the sender.
... a problem with your 901 system, it is packed in Two Cartons Marked "Part 1" and "Part 2" Weight: Part 1 - 44 pounds Part 2 - 42 pounds Carton Dimensions: 22-3/4- Units must appear on the outside of the carton when the unit is available at the BOSE Factory without the Equal. VI. Note: If...is connected in parallel with the first pair, a second Equalizer is the case, leave the BELOW 40 switch in the CONTOUR position for the recording you hear distortion with both speakers at the BOSE Factory. For this is not required. If this reason, the BOSE 901 is returned to the sender.
Owner's guide
Page 15
...-3/4" H x 12-7/8" D Weight: 33 pounds Nominal Impedance: 8 ohms C. The drivers are 18 inches high, and available in either white. The Active Equalizer Dimensions: 2.13/16" H x 9.1/4" W x 63/4" 0 Input Impedance: 150k ohms Output Impedance: less than five seconds!: 400 watts Maximum recommended amplifier ... to eliminate audible resonances. VII. • ACCESSORIES AND OPTIONS WALNUT FACINGS The BOSE 901 is available with a damping factor of 40 or higher meets the requirements of the 901. (The wire size recommendations of Direct and Reflected Sound Radiation Power radiated by ...
...-3/4" H x 12-7/8" D Weight: 33 pounds Nominal Impedance: 8 ohms C. The drivers are 18 inches high, and available in either white. The Active Equalizer Dimensions: 2.13/16" H x 9.1/4" W x 63/4" 0 Input Impedance: 150k ohms Output Impedance: less than five seconds!: 400 watts Maximum recommended amplifier ... to eliminate audible resonances. VII. • ACCESSORIES AND OPTIONS WALNUT FACINGS The BOSE 901 is available with a damping factor of 40 or higher meets the requirements of the 901. (The wire size recommendations of Direct and Reflected Sound Radiation Power radiated by ...