Owner's guide
Page 2
... TABLE OF CONTENTS I (Using PRE•AMP OUT and MAIN IN Connections with Receiver or Integrated Amplifier) 3. Speaker Placement B. Fusing Your 901 Speakers C. Alternate Method II (Using separate PREAMPLIFIER and POWER AMPLIFIER) 4. II. VI. Connecting Headphones or Conventional Speakers Getting The Most Out of Difficulty Technical Information Accessories and Options Five Year Warranty Page...
... TABLE OF CONTENTS I (Using PRE•AMP OUT and MAIN IN Connections with Receiver or Integrated Amplifier) 3. Speaker Placement B. Fusing Your 901 Speakers C. Alternate Method II (Using separate PREAMPLIFIER and POWER AMPLIFIER) 4. II. VI. Connecting Headphones or Conventional Speakers Getting The Most Out of Difficulty Technical Information Accessories and Options Five Year Warranty Page...
Owner's guide
Page 4
... NOT place the speakers closer than 18 inches from the floor. 2. This wire usually has a ribbed line running along one or two pairs of BOSE 901 speaker system(s). TABLE 1 - The separation between the speakers should be placed at each other large pieces of furniture. 5. WIRE LENGTHS FOR EACH SPEAKER...may disturb the delicate adjustments of your amplifier has too much resistance, audible colora. • Lion of the sound and loss of power can result. The basic idea is important that the conductor can be followed in placing the speakers relative to other surfaces in phase with...
... NOT place the speakers closer than 18 inches from the floor. 2. This wire usually has a ribbed line running along one or two pairs of BOSE 901 speaker system(s). TABLE 1 - The separation between the speakers should be placed at each other large pieces of furniture. 5. WIRE LENGTHS FOR EACH SPEAKER...may disturb the delicate adjustments of your amplifier has too much resistance, audible colora. • Lion of the sound and loss of power can result. The basic idea is important that the conductor can be followed in placing the speakers relative to other surfaces in phase with...
Owner's guide
Page 5
...powering it on the left channel output of your speakers. 80SE Corporation recommends the use of a 3-ampere fuse, such as "812" "Hot" or "Positive" ( -41 If stranded wire is used for convenience. (For two pairs of 901s....1 or a LITTELFUSE 356001, may be used , be connected in series with either of the two wires in series with each speaker. The fuse should be connected in identifying the proper... at all amplifier and speaker terminals are tightened securely. • If two pairs of BOSE 901s. Connect the "8 OHMS" terminal on the left side of your room. Because of ...
...powering it on the left channel output of your speakers. 80SE Corporation recommends the use of a 3-ampere fuse, such as "812" "Hot" or "Positive" ( -41 If stranded wire is used for convenience. (For two pairs of 901s....1 or a LITTELFUSE 356001, may be used , be connected in series with either of the two wires in series with each speaker. The fuse should be connected in identifying the proper... at all amplifier and speaker terminals are tightened securely. • If two pairs of BOSE 901s. Connect the "8 OHMS" terminal on the left side of your room. Because of ...
Owner's guide
Page 6
This method usually results in this section can be switched on or off all integrated amplifiers, preamplifiers, and receivers. The 901 Equalizer is normally connected to the LEFT or "A" channel TAPE RECORD terminal of your control amplifier. (This terminal may... STEPS WILL CONNECT THE EQUALIZER TO YOUR PREAMPLIFIER, RECEIVER, OR INTEGRATED AMPLIFIER. Instructions in Steps a through n: a. Turn off by the power switch of your control amplifier. Connect the RIGHT channel INPUT terminal of the Equalizer to the different nomenclature which various manufacturers employ. Connect the...
This method usually results in this section can be switched on or off all integrated amplifiers, preamplifiers, and receivers. The 901 Equalizer is normally connected to the LEFT or "A" channel TAPE RECORD terminal of your control amplifier. (This terminal may... STEPS WILL CONNECT THE EQUALIZER TO YOUR PREAMPLIFIER, RECEIVER, OR INTEGRATED AMPLIFIER. Instructions in Steps a through n: a. Turn off by the power switch of your control amplifier. Connect the RIGHT channel INPUT terminal of the Equalizer to the different nomenclature which various manufacturers employ. Connect the...
Owner's guide
Page 8
... V .I ILL:?:117, 0 FIG. 4 An alternate method of connecting the BOSE Active Equalizer makes use of their receivers or integrated amplifiers. Tape re- ALTERNATE METHOD II (Using separate PREAMPLIFIERS and POWER AMPLIFIERS) g...g 2sts7,--t a .(113•.... -77:L.'S ....,g17,7 in the ... provided by removing shorting wires or plugs and/or moving a slide switch). ALTERNATE METHOD I (Using PRE•AMP OUT and MAIN IN Connections with most power amplifiers having gain controls that it P: I ., •1..3 r , ,, Viz .1.1 IlreCK 1, 0 OaL•40 ninCen Saw/ 0 0 i ...co.....
... V .I ILL:?:117, 0 FIG. 4 An alternate method of connecting the BOSE Active Equalizer makes use of their receivers or integrated amplifiers. Tape re- ALTERNATE METHOD II (Using separate PREAMPLIFIERS and POWER AMPLIFIERS) g...g 2sts7,--t a .(113•.... -77:L.'S ....,g17,7 in the ... provided by removing shorting wires or plugs and/or moving a slide switch). ALTERNATE METHOD I (Using PRE•AMP OUT and MAIN IN Connections with most power amplifiers having gain controls that it P: I ., •1..3 r , ,, Viz .1.1 IlreCK 1, 0 OaL•40 ninCen Saw/ 0 0 i ...co.....
Owner's guide
Page 9
...; speakers are constructed to the BOSE Equalizer tape monitor circuit, not the unused TAPE monitor position found on or "activated" at a point in the MONITOR position (down). Follow the next five steps carefully: (Refer to the LEFT or "A" channel OUTPUT terminal of the amplifier channels powering the 901 speakers. CONTROL AMPLIFIERS HAVING TWO...
...; speakers are constructed to the BOSE Equalizer tape monitor circuit, not the unused TAPE monitor position found on or "activated" at a point in the MONITOR position (down). Follow the next five steps carefully: (Refer to the LEFT or "A" channel OUTPUT terminal of the amplifier channels powering the 901 speakers. CONTROL AMPLIFIERS HAVING TWO...
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. GETTING THE MOST OUT OF YOUR 901 SPEAKERS A. The primary influence of male voice, the low guitar range, string bass, cello, trombone, and tympani. This frequency range... and above 3000 Hz to change the frequency response of sound into the room can be moved no farther apart than BOSE 901s. or to match the power response of the room. E. CONNECTING HEADPHONES OR CONVENTIONAL SPEAKERS It is important to remember that if other than 15 feet...
MORE IMPORTANTLY, HEADPHONES OR CONVENTIONAL SPEAKERS MAY BE DAMAGED BY PLAYING WITH THE BOSE 901 EQUALIZER CONNECTED IN THE CIRCUIT. GETTING THE MOST OUT OF YOUR 901 SPEAKERS A. The primary influence of male voice, the low guitar range, string bass, cello, trombone, and tympani. This frequency range... and above 3000 Hz to change the frequency response of sound into the room can be moved no farther apart than BOSE 901s. or to match the power response of the room. E. CONNECTING HEADPHONES OR CONVENTIONAL SPEAKERS It is important to remember that if other than 15 feet...
Owner's guide
Page 11
... Keep in bass response of the speaker down. The 901 speaker should be tilted in this is readily available at...This control causes a uniform reduction in mind that each 901 weighs 33 pounds; This control is to direct sound ... wish more sound to the left. ADJUSTING THE EQUALIZER CONTROLS 901 ACTIVE EQUALIZER • rm.! If distortion occurs when you...way of altering the performance of the 901 system is effective also in a high ceiling room, the sound can be... of the 901 cabinet via decorative hooks or eyelets screwed into an adjacent room. (See Fig. 7.1 The 901s also can ...
... Keep in bass response of the speaker down. The 901 speaker should be tilted in this is readily available at...This control causes a uniform reduction in mind that each 901 weighs 33 pounds; This control is to direct sound ... wish more sound to the left. ADJUSTING THE EQUALIZER CONTROLS 901 ACTIVE EQUALIZER • rm.! If distortion occurs when you...way of altering the performance of the 901 system is effective also in a high ceiling room, the sound can be... of the 901 cabinet via decorative hooks or eyelets screwed into an adjacent room. (See Fig. 7.1 The 901s also can ...
Owner's guide
Page 13
... 8 ohms. To reproduce the highest sound levels in the same frequency response as the 901, we could not significantly improve its performance. If such levels are covered with curtains or drapes. The BOSE 901 can be uncomfortable to Position 2 or Position 1. E. If we were to 270 watts...Position 5. and increasing the power available from the reflecting wall, floor, ceiling, and side wall, as if you select an amplifier or receiver which is capable of delivering 25 watts rms per channel into 8 ohms without exceeding the safe operating limits of the BOSE 901 system. The effect of ...
... 8 ohms. To reproduce the highest sound levels in the same frequency response as the 901, we could not significantly improve its performance. If such levels are covered with curtains or drapes. The BOSE 901 can be uncomfortable to Position 2 or Position 1. E. If we were to 270 watts...Position 5. and increasing the power available from the reflecting wall, floor, ceiling, and side wall, as if you select an amplifier or receiver which is capable of delivering 25 watts rms per channel into 8 ohms without exceeding the safe operating limits of the BOSE 901 system. The effect of ...
Owner's guide
Page 14
.... DO NOT SHIP VIA PARCEL POST. W x 15" H x 16-1/2" D 14 If the trouble moves to the other speaker, it becomes necessary to return your power amplifier. VI. If this by having the unit serviced at high sound levels which is not in the speakers or in the Equalizer, be returned... second Equalizer is not required. For this manual, if you should connect each pair of the circuit. The System is packed in this reason, the BOSE 901 is returned to be in the speaker wiring. you hear distortion with the Equalizer out of speakers to the sender. izer. As noted earlier in...
.... DO NOT SHIP VIA PARCEL POST. W x 15" H x 16-1/2" D 14 If the trouble moves to the other speaker, it becomes necessary to return your power amplifier. VI. If this by having the unit serviced at high sound levels which is not in the speakers or in the Equalizer, be returned... second Equalizer is not required. For this manual, if you should connect each pair of the circuit. The System is packed in this reason, the BOSE 901 is returned to be in the speaker wiring. you hear distortion with the Equalizer out of speakers to the sender. izer. As noted earlier in...
Owner's guide
Page 15
...recommendations of walnut grain around the entire cabinet. VII. • ACCESSORIES AND OPTIONS WALNUT FACINGS The BOSE 901 is available with the 901 Continental. PEDESTALS Specially designed pedestals are acoustically coupled to provide the rich look of Table 1 on...driver excursion: +1/4" Nominal driver impedance: 8 ohms Weight of each speaker front allows a choice of Direct and Reflected Sound Radiation Power radiated by reflection: 89% Power radiated directly: 11% (Design percentages based on each ceramic magnet: 9.6 ounces G. Percentages of fabrics. • B. They ...
...recommendations of walnut grain around the entire cabinet. VII. • ACCESSORIES AND OPTIONS WALNUT FACINGS The BOSE 901 is available with the 901 Continental. PEDESTALS Specially designed pedestals are acoustically coupled to provide the rich look of Table 1 on...driver excursion: +1/4" Nominal driver impedance: 8 ohms Weight of each speaker front allows a choice of Direct and Reflected Sound Radiation Power radiated by reflection: 89% Power radiated directly: 11% (Design percentages based on each ceramic magnet: 9.6 ounces G. Percentages of fabrics. • B. They ...