Owner's guide
Page 3
...BOSE 901 with your BOSE 901s culminates many years of research and dedication to the art of major advances in the original cartons and notify your 901s provide, wi en properly installed. II. 4 INTRODUCTION r Thank you for possible use later.) If either the speakers or the Equalizer... and Active Equalizer incorporates a number of bringing the finest musical reproduction into a corner (See Fig. 11. Unpack both cartons carefully. (Save the cartons and packing materials for purchasing the BOSE 901 Series 31Direct/Reflecting r speaker system. Repack the speakers and the Equalizer in...
...BOSE 901 with your BOSE 901s culminates many years of research and dedication to the art of major advances in the original cartons and notify your 901s provide, wi en properly installed. II. 4 INTRODUCTION r Thank you for possible use later.) If either the speakers or the Equalizer... and Active Equalizer incorporates a number of bringing the finest musical reproduction into a corner (See Fig. 11. Unpack both cartons carefully. (Save the cartons and packing materials for purchasing the BOSE 901 Series 31Direct/Reflecting r speaker system. Repack the speakers and the Equalizer in...
Owner's guide
Page 5
...FIG.2 Start with each speaker. FUSING YOUR 901 SPEAKERS Any loudspeaker is used, be sure that all frequencies, the 901 Active Equalizer must be connected in the same manner to the "COM" terminal on the receiver or amplifier should be connected in series with either of the two wires in the... cable to each speaker will minimize the possibility of a 3-ampere fuse, such as "812" "Hot" or "Positive" ( -41 If stranded wire is subject to assist you in parallel , the terminal marked "41.2" or "4 ohms' on the left channel output of BOSE 901s...
...FIG.2 Start with each speaker. FUSING YOUR 901 SPEAKERS Any loudspeaker is used, be sure that all frequencies, the 901 Active Equalizer must be connected in the same manner to the "COM" terminal on the receiver or amplifier should be connected in series with either of the two wires in the... cable to each speaker will minimize the possibility of a 3-ampere fuse, such as "812" "Hot" or "Positive" ( -41 If stranded wire is subject to assist you in parallel , the terminal marked "41.2" or "4 ohms' on the left channel output of BOSE 901s...
Owner's guide
Page 8
... method of connection is difficult to the MAIN IN terminals of connecting the BOSE Active Equalizer makes use conventional speakers or headphones, because the Equal• izer is usually accomplished by many manufacturers on the Equalizer in the conventional manner. S 3. ALTERNATE METHOD II (Using separate PREAMPLIFIERS and POWER AMPLIFIERS) g...g 2sts7,--t a .(113•.... -77:L.'S ....,g17,7 in systems...
... method of connection is difficult to the MAIN IN terminals of connecting the BOSE Active Equalizer makes use conventional speakers or headphones, because the Equal• izer is usually accomplished by many manufacturers on the Equalizer in the conventional manner. S 3. ALTERNATE METHOD II (Using separate PREAMPLIFIERS and POWER AMPLIFIERS) g...g 2sts7,--t a .(113•.... -77:L.'S ....,g17,7 in systems...
Owner's guide
Page 9
...BOSE Equalizer tape monitor circuit, not the unused TAPE monitor position found on or "activated" at a point in the circuit while the 901 • speakers are being turned on your own needs for the connection of the associated equipment regarding system connection. To play the tape recorder, simply place the TAPE switch on the 901 Active Equalizer... of the decoding equipment. ALTERNATE METHOD Ill (Using FOUR-CHANNEL DECODERS) As previously stated, the BOSE Active Equalizer should be in the signal path following the four'channel decoder to Fig. 6.1 a. b. Since the...
...BOSE Equalizer tape monitor circuit, not the unused TAPE monitor position found on or "activated" at a point in the circuit while the 901 • speakers are being turned on your own needs for the connection of the associated equipment regarding system connection. To play the tape recorder, simply place the TAPE switch on the 901 Active Equalizer... of the decoding equipment. ALTERNATE METHOD Ill (Using FOUR-CHANNEL DECODERS) As previously stated, the BOSE Active Equalizer should be in the signal path following the four'channel decoder to Fig. 6.1 a. b. Since the...
Owner's guide
Page 10
MORE IMPORTANTLY, HEADPHONES OR CONVENTIONAL SPEAKERS MAY BE DAMAGED BY PLAYING WITH THE BOSE 901 EQUALIZER CONNECTED IN THE CIRCUIT. ADJUSTING SPEAKER PLACEMENT There are played while the Equalizer is too narrow, simply move the vee more than 18 inches from the wall than 18 inches from the floor...-bass range can also be moved no farther apart than 8 inches. CONNECTING HEADPHONES OR CONVENTIONAL SPEAKERS It is recommended that the BOSE 901 Active Equalizer introduces substantial boost in the range below 100 Hz and above 3000 Hz to change the dispersion of sound into the room; ...
MORE IMPORTANTLY, HEADPHONES OR CONVENTIONAL SPEAKERS MAY BE DAMAGED BY PLAYING WITH THE BOSE 901 EQUALIZER CONNECTED IN THE CIRCUIT. ADJUSTING SPEAKER PLACEMENT There are played while the Equalizer is too narrow, simply move the vee more than 18 inches from the wall than 18 inches from the floor...-bass range can also be moved no farther apart than 8 inches. CONNECTING HEADPHONES OR CONVENTIONAL SPEAKERS It is recommended that the BOSE 901 Active Equalizer introduces substantial boost in the range below 100 Hz and above 3000 Hz to change the dispersion of sound into the room; ...
Owner's guide
Page 11
... manner by adjusting the length of the rear chain(s). Keep in bass response of approximately 8 dB below 40 Hz. B. ADJUSTING THE EQUALIZER CONTROLS 901 ACTIVE EQUALIZER • rm.! If distortion occurs when you to the left side of one of the speakers, rotate the rear of the speaker ...at most stores carrying decorative lighting accessories. The sound will allow you are attached to adjust the Equalizer controls. This control causes a uniform reduction in mind that each 901 weighs 33 pounds; These are playing loud musical material with three or tour pieces of decorative chain...
... manner by adjusting the length of the rear chain(s). Keep in bass response of approximately 8 dB below 40 Hz. B. ADJUSTING THE EQUALIZER CONTROLS 901 ACTIVE EQUALIZER • rm.! If distortion occurs when you to the left side of one of the speakers, rotate the rear of the speaker ...at most stores carrying decorative lighting accessories. The sound will allow you are attached to adjust the Equalizer controls. This control causes a uniform reduction in mind that each 901 weighs 33 pounds; These are playing loud musical material with three or tour pieces of decorative chain...
Owner's guide
Page 12
...\-/ 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 OttiOELS...flat") is illustrated in the high treble range above 10 kHz . FREQUENCY RESPONSE CONTOURS OF THE 805E 901 SERIES ii ACTIVE EOt/RuZER WITH THE miG. The effect of the 901 Equalizer is labeled HIGH FREQ. The third position is a rotary switch labeled TREBLE LEVEL. In a room that...
...\-/ 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 OttiOELS...flat") is illustrated in the high treble range above 10 kHz . FREQUENCY RESPONSE CONTOURS OF THE 805E 901 SERIES ii ACTIVE EOt/RuZER WITH THE miG. The effect of the 901 Equalizer is labeled HIGH FREQ. The third position is a rotary switch labeled TREBLE LEVEL. In a room that...
Owner's guide
Page 15
• B. VII. • ACCESSORIES AND OPTIONS WALNUT FACINGS The BOSE 901 is available with high energy magnets to eliminate audible resonances. Walnut facings are available as a separate add-on any frequency: 50 watts ... available in either white. The small grille panel on each ceramic magnet: 9.6 ounces G. Damping Factor Any amplifier with the 901 Continental. black or chrome. 15 The drivers are available for the 901. 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 ...
• B. VII. • ACCESSORIES AND OPTIONS WALNUT FACINGS The BOSE 901 is available with high energy magnets to eliminate audible resonances. Walnut facings are available as a separate add-on any frequency: 50 watts ... available in either white. The small grille panel on each ceramic magnet: 9.6 ounces G. Damping Factor Any amplifier with the 901 Continental. black or chrome. 15 The drivers are available for the 901. 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 ...