Owner's guide
Page 2
... ESSENTIAL FOR PROPER OPERATION AND FULL PERFORMANCE or THE BOSE 901 . Speaker Placement Your BOSE 901 speakers have been designed to your dealer. Therefore, in n-ost rooms you must place them correctly in the room according to the guidelines indicated in sturdy cartons. The BOSE 901 Active Equalizer provides unprecedented accuracy and control of four audio cables...
... ESSENTIAL FOR PROPER OPERATION AND FULL PERFORMANCE or THE BOSE 901 . Speaker Placement Your BOSE 901 speakers have been designed to your dealer. Therefore, in n-ost rooms you must place them correctly in the room according to the guidelines indicated in sturdy cartons. The BOSE 901 Active Equalizer provides unprecedented accuracy and control of four audio cables...
Owner's guide
Page 4
... the terminals are also given in Section VI. Take one of the cables supplied with virtually all equipment. 2. Connecting the 901 Active Equalizer TI-ES PART OF THE INSTALLATION DIFFERS FROM THAT OF OTHER SPEAKER SYSTEMS. FOLLOW THESE INSTRUCTIONS STEP BY STEP. Read both... preamplifier or receiver. (A new tape monitor switch is supplied on the Equalizer. READ THEM CAREFULLY. 3. If stranded wire is described in this section.) The 901 Active Equalizer is normally connected to provide proper equalization of the steps in Section VI, do not short the speaker or amplifier...
... the terminals are also given in Section VI. Take one of the cables supplied with virtually all equipment. 2. Connecting the 901 Active Equalizer TI-ES PART OF THE INSTALLATION DIFFERS FROM THAT OF OTHER SPEAKER SYSTEMS. FOLLOW THESE INSTRUCTIONS STEP BY STEP. Read both... preamplifier or receiver. (A new tape monitor switch is supplied on the Equalizer. READ THEM CAREFULLY. 3. If stranded wire is described in this section.) The 901 Active Equalizer is normally connected to provide proper equalization of the steps in Section VI, do not short the speaker or amplifier...
Owner's guide
Page 5
TAPE IN TAPE OUT LEFT 3RIGHT CON E( T IONS 0 TAF4IE RECORDER EQUALIZER EQUALIZER INPUT OUTPUT ) LEFT C t,- ' ( i RIGHT G--) CONNECTIONS Tth [AMPLIFIER C -.45' 03r \-4-step 5 step 6 step 3 Back panel of Equalizer step 4 TAPE z RECORDER RECEIVER OR PREAMPLIFIER Figure 2 •
TAPE IN TAPE OUT LEFT 3RIGHT CON E( T IONS 0 TAF4IE RECORDER EQUALIZER EQUALIZER INPUT OUTPUT ) LEFT C t,- ' ( i RIGHT G--) CONNECTIONS Tth [AMPLIFIER C -.45' 03r \-4-step 5 step 6 step 3 Back panel of Equalizer step 4 TAPE z RECORDER RECEIVER OR PREAMPLIFIER Figure 2 •
Owner's guide
Page 6
...-PE INPUT terminal on your preamplifier or receiver. (This preamplifier terminal may alternatively be labeled RECORDER OUTPUT.) 6. Connect the power cord from the Equalizer to an AC receptacle: You may alternatively be labeled TAPE PLAYBACK or TAPE MONITOR. ) 4. THE NEXT 5 STEPS ARE TESTS WHICH MUST BE...8. Place the TAPE switch on your preamplifier to the NORMAL or OUT position. 10. Turn on the entire system except for the Equalizer, which should be turned off by the power switch on the preamplifier or receiver. trols so they coincide with the indicated dots. Play...
...-PE INPUT terminal on your preamplifier or receiver. (This preamplifier terminal may alternatively be labeled RECORDER OUTPUT.) 6. Connect the power cord from the Equalizer to an AC receptacle: You may alternatively be labeled TAPE PLAYBACK or TAPE MONITOR. ) 4. THE NEXT 5 STEPS ARE TESTS WHICH MUST BE...8. Place the TAPE switch on your preamplifier to the NORMAL or OUT position. 10. Turn on the entire system except for the Equalizer, which should be turned off by the power switch on the preamplifier or receiver. trols so they coincide with the indicated dots. Play...
Owner's guide
Page 7
... The pilot lamp in the OFF position.) The sound should then be operating. Four cables similar to the MONITOR or IN position. (The Equalizer power switch should still be in the POWER switch should light and the system should be corrected before proceeding further. 12. Connecting a Tape Recorder... the pilot lamp does not light, check the power cord connection of the 901 is now complete and the system is incorrectly connected. If the pilot lamp lights but sound does not return, then the Equalizer is an error elsewhere in Section VII. If • you wish to ...
... The pilot lamp in the OFF position.) The sound should then be operating. Four cables similar to the MONITOR or IN position. (The Equalizer power switch should still be in the POWER switch should light and the system should be corrected before proceeding further. 12. Connecting a Tape Recorder... the pilot lamp does not light, check the power cord connection of the 901 is now complete and the system is incorrectly connected. If the pilot lamp lights but sound does not return, then the Equalizer is an error elsewhere in Section VII. If • you wish to ...
Owner's guide
Page 8
... one of the cables you have just disconnected, connect - 7- • The TAPE switch on the Equalizer replaces the TAPE MONITOR switch on the tape recorder. 3. Turn all power off. 2. Alternative Method: Connecting the 901 • Active Equalizer Between a Preamplifier and a Power Amplifier. If this method of connection, the preamplifier is desired, use . Consult...
... one of the cables you have just disconnected, connect - 7- • The TAPE switch on the Equalizer replaces the TAPE MONITOR switch on the tape recorder. 3. Turn all power off. 2. Alternative Method: Connecting the 901 • Active Equalizer Between a Preamplifier and a Power Amplifier. If this method of connection, the preamplifier is desired, use . Consult...
Owner's guide
Page 10
... be automatically switched on or off by the power switch on the preamp. scribed in the preamp and recorder manuals. Connect the Equalizer power cord to an AC re- This switch should be left permanently in this section. Using a third cable, connect the RIGHT channel...the RIGHT or B channel OUTPUT terminal on your preamp (the prearnp terminal may prefer to use a second cable and connect the LEFT channel EQUALIZER OUTPUT to the LEFT or A channel INPUT terminal on the power amplifier. 5. ceptacle. Place the three frequency contour controls so they coincide...
... be automatically switched on or off by the power switch on the preamp. scribed in the preamp and recorder manuals. Connect the Equalizer power cord to an AC re- This switch should be left permanently in this section. Using a third cable, connect the RIGHT channel...the RIGHT or B channel OUTPUT terminal on your preamp (the prearnp terminal may prefer to use a second cable and connect the LEFT channel EQUALIZER OUTPUT to the LEFT or A channel INPUT terminal on the power amplifier. 5. ceptacle. Place the three frequency contour controls so they coincide...
Owner's guide
Page 11
... The effects of the TAPE MONITOR switch on high fidelity equipment. With the system operating, turn the Equalizer POWER switch off. Operating the 901 Equalizer Controls The 901 Active Equalizer has a TAPE switch which replaces the function of the remaining positions are described in your preamplifier or re...your preamp- The functions of the system is placed in the NORMAL position. The TAPE MONITOR switch on the Equalizer should operate normally. The 901 system is used to offer flexibility not provided by the dots. If it doesn't, check the power connection to ...
... The effects of the TAPE MONITOR switch on high fidelity equipment. With the system operating, turn the Equalizer POWER switch off. Operating the 901 Equalizer Controls The 901 Active Equalizer has a TAPE switch which replaces the function of the remaining positions are described in your preamplifier or re...your preamp- The functions of the system is placed in the NORMAL position. The TAPE MONITOR switch on the Equalizer should operate normally. The 901 system is used to offer flexibility not provided by the dots. If it doesn't, check the power connection to ...
Owner's guide
Page 15
... techniques and room acoustics. Dimensions 2 13/16" high. 9 1/4" wide, 6 3/4" deep. 1' SO•100469 The Active Equalizer is easily connected to yield twenty different frequency contours designed for compensation of the entire audio spectrum in every production unit. The Active... Equalizer contains over one hundred components, including ten transistors, mounted on a military quality circuit board. Installation. ACTIVE EQUALIZER (TWO CHANNELS) Program Contour Controls. The normally flat radiated power spectrum...
... techniques and room acoustics. Dimensions 2 13/16" high. 9 1/4" wide, 6 3/4" deep. 1' SO•100469 The Active Equalizer is easily connected to yield twenty different frequency contours designed for compensation of the entire audio spectrum in every production unit. The Active... Equalizer contains over one hundred components, including ten transistors, mounted on a military quality circuit board. Installation. ACTIVE EQUALIZER (TWO CHANNELS) Program Contour Controls. The normally flat radiated power spectrum...