Owner's guide
Page 2
... Speakers VI. Living with your BOSE 901 Speakers 16 A. Room Acoustics VII. Care and Maintenance VIII. Warranty 20 2 1976 13091: Corpcxelion Covered by patent rights issued and pending. • Unpacking Instructions 3 III. Installation 6 A. Fusing C. Using...B. Wire Selection 2. Using the Tape Monitor Circuit 2. Using Four-ChannelEquipment V. Connecting Other Equipment 14 A. Speaker Placement C. The 901 Series III Loudspeaker System 4 A. Voltage Conversion C. Technological Innovations IV. Phasing/Wiring 3. Using the Preamp-Out/Main-In Circuit 4. Connecting the...
... Speakers VI. Living with your BOSE 901 Speakers 16 A. Room Acoustics VII. Care and Maintenance VIII. Warranty 20 2 1976 13091: Corpcxelion Covered by patent rights issued and pending. • Unpacking Instructions 3 III. Installation 6 A. Fusing C. Using...B. Wire Selection 2. Using the Tape Monitor Circuit 2. Using Four-ChannelEquipment V. Connecting Other Equipment 14 A. Speaker Placement C. The 901 Series III Loudspeaker System 4 A. Voltage Conversion C. Technological Innovations IV. Phasing/Wiring 3. Using the Preamp-Out/Main-In Circuit 4. Connecting the...
Owner's guide
Page 3
... The active equalizer is packed in Iwo cartons marked "Part 1" and "Part 2." Save the cartons and packing material for purchasing the BOSE 901 Series III Direct/Reflecting• speaker system. Repack the speaker(s) in the carton filler material along with the complete packing material and notify your...visible damage when unpacked. Unpack both cartons carefully. do not place the damaged speaker(s) in this manual are important. UnpackingInstructions The 901 Series III speaker system is found in operation. • I. PLEASE TAKE THE TIME TO READ THESE INSTRUCTIONS CAREFULLY.
... The active equalizer is packed in Iwo cartons marked "Part 1" and "Part 2." Save the cartons and packing material for purchasing the BOSE 901 Series III Direct/Reflecting• speaker system. Repack the speaker(s) in the carton filler material along with the complete packing material and notify your...visible damage when unpacked. Unpack both cartons carefully. do not place the damaged speaker(s) in this manual are important. UnpackingInstructions The 901 Series III speaker system is found in operation. • I. PLEASE TAKE THE TIME TO READ THESE INSTRUCTIONS CAREFULLY.
Owner's guide
Page 4
... area, thus recreating the proportion of reflected to be reduced or accentuated. Correct Balance of Reflected and Direct Sound The BOSE 901 Series III is designed to use your listening room walls to simulate the reflective properties of the much larger stage wall found behind ...assembly means that a 15 watt amplifier will produce the loudness that cause its outstanding performance: • A highly efficient magnetic structure with the Bose 901 Series II. • • • 4 thus, the entire system radiates the correct balance of the total power). Multiple Full-Range ...
... area, thus recreating the proportion of reflected to be reduced or accentuated. Correct Balance of Reflected and Direct Sound The BOSE 901 Series III is designed to use your listening room walls to simulate the reflective properties of the much larger stage wall found behind ...assembly means that a 15 watt amplifier will produce the loudness that cause its outstanding performance: • A highly efficient magnetic structure with the Bose 901 Series II. • • • 4 thus, the entire system radiates the correct balance of the total power). Multiple Full-Range ...
Owner's guide
Page 5
...Theenclosureincorporates three Reactive Air Columns(one for the front driver and one for optimum performance characteristics. 3. iati . 'sr 1/4" The 901 Series III realizes additional advantages of active equalization with nine full-range matched drivers in a wide range of room positions (see SECTION VI)....8226; Control of response of four drivers on the rear panels). The Acoustic Matrix" Enclosure The enclosure of the 901 Series III is to provide reactiveairloadingtoreducethemotionrequiredof the driver cones at frequencies inaudible to the human ear allows the drivers and enclosure to ...
...Theenclosureincorporates three Reactive Air Columns(one for the front driver and one for optimum performance characteristics. 3. iati . 'sr 1/4" The 901 Series III realizes additional advantages of active equalization with nine full-range matched drivers in a wide range of room positions (see SECTION VI)....8226; Control of response of four drivers on the rear panels). The Acoustic Matrix" Enclosure The enclosure of the 901 Series III is to provide reactiveairloadingtoreducethemotionrequiredof the driver cones at frequencies inaudible to the human ear allows the drivers and enclosure to ...
Owner's guide
Page 6
...sound energy. 3. Best results will be obtained with the speakers placed between 12" and 24" from the reflecting wall. 2. Installation Your 901 Series III speaker system consists of placement positions. (See Figure 2.) The following guidelines in placing the speaker cabinets will give excellent results in the "...your amplifying equipment, and 3) connecting the equalizer to 18" from the reflecting wall. SECTION VI (LIVING WITH YOUR BOSE 901 SPEAKERS) provides several additional suggestions for speaker placement. REFLECTING WALL tr-15' 16'-341" Figuru 1 A. The point of the...
...sound energy. 3. Best results will be obtained with the speakers placed between 12" and 24" from the reflecting wall. 2. Installation Your 901 Series III speaker system consists of placement positions. (See Figure 2.) The following guidelines in placing the speaker cabinets will give excellent results in the "...your amplifying equipment, and 3) connecting the equalizer to 18" from the reflecting wall. SECTION VI (LIVING WITH YOUR BOSE 901 SPEAKERS) provides several additional suggestions for speaker placement. REFLECTING WALL tr-15' 16'-341" Figuru 1 A. The point of the...
Owner's guide
Page 8
...alValets wdl operate Iwo pairs of your 901s in Iles Illannef I lowever. twoconductor...on the left channel amplifier output. (When connecting the 901 Series III loudspeakers to the terminal marked "corn." "negative," or ...WIREt Wire Length One Pair of 901s Wire Length Two Pairs of 901s Type of the speaker. Place...speakers or used for both 901 speaker systems be unable ... a choice of impedances on the left side of 901 Series III loudspeakers are used, they Can be purchased without the...important that both speakers work together (in series Cailacl your amplifier, if there is marked ...
...alValets wdl operate Iwo pairs of your 901s in Iles Illannef I lowever. twoconductor...on the left channel amplifier output. (When connecting the 901 Series III loudspeakers to the terminal marked "corn." "negative," or ...WIREt Wire Length One Pair of 901s Wire Length Two Pairs of 901s Type of the speaker. Place...speakers or used for both 901 speaker systems be unable ... a choice of impedances on the left side of 901 Series III loudspeakers are used, they Can be purchased without the...important that both speakers work together (in series Cailacl your amplifier, if there is marked ...
Owner's guide
Page 10
... tape monitorcircuitry. CONNECTING THE EQUALIZER IT IS MOST IMPORTANT THAT YOU FOLLOW THESE INSTRUCTIONS FOR OPTIMUM PERFORMANCE OF YOUR 901 SERIES III SPEAKER SYSTEM. 1. we are unclear, it from your control amplifier so that the 901 equalizer is important because conventional speakers and headphones should not be used with the equalizer, connect the LEFT...
... tape monitorcircuitry. CONNECTING THE EQUALIZER IT IS MOST IMPORTANT THAT YOU FOLLOW THESE INSTRUCTIONS FOR OPTIMUM PERFORMANCE OF YOUR 901 SERIES III SPEAKER SYSTEM. 1. we are unclear, it from your control amplifier so that the 901 equalizer is important because conventional speakers and headphones should not be used with the equalizer, connect the LEFT...
Owner's guide
Page 11
... sound should now return. • THE FOLLOWING STEPS ARE PROVIDED TO ENSURE THAT THE EQUALIZER IS PROPERLY CONNECTED TO YOUR HIGH-FIDELITY SYSTEM. NOTE 2: THE 901 SERIES III EQUALIZER IS NOT COMPATIBLE WITH THE 901 SERIES I . Turn the BALANCE control of your control amplifier in the NORMAL position.
... sound should now return. • THE FOLLOWING STEPS ARE PROVIDED TO ENSURE THAT THE EQUALIZER IS PROPERLY CONNECTED TO YOUR HIGH-FIDELITY SYSTEM. NOTE 2: THE 901 SERIES III EQUALIZER IS NOT COMPATIBLE WITH THE 901 SERIES I . Turn the BALANCE control of your control amplifier in the NORMAL position.
Owner's guide
Page 13
...and integrated amplifier owner's instruction manual for the BOSE equalizer. Tape recorders are required. use this manual before proceeding. to determine the proper phase of the decoder. refer to your speakers. If two pairs of the 901 Series III system, optimum performance is obtained when all four... speaker systems are used with the 901s, connect the equalizer in the NORMAL position. We suggest reading the related sections of ...
...and integrated amplifier owner's instruction manual for the BOSE equalizer. Tape recorders are required. use this manual before proceeding. to determine the proper phase of the decoder. refer to your speakers. If two pairs of the 901 Series III system, optimum performance is obtained when all four... speaker systems are used with the 901s, connect the equalizer in the NORMAL position. We suggest reading the related sections of ...
Owner's guide
Page 16
... the midposition will cause a decrease in reducing turntable or record rumble. This compensates for most listening rooms. However, you may find a lower setting of your BOSE 901Speakers A. The BOSE 901 Series III Active Equalizer addresses this problem with new control features, allowing greater flexibility in program material (see SECTION C). ADJUSTING YOUR EQUALIZER CONTROLS The...
... the midposition will cause a decrease in reducing turntable or record rumble. This compensates for most listening rooms. However, you may find a lower setting of your BOSE 901Speakers A. The BOSE 901 Series III Active Equalizer addresses this problem with new control features, allowing greater flexibility in program material (see SECTION C). ADJUSTING YOUR EQUALIZER CONTROLS The...
Owner's guide
Page 17
... and to the side of the speaker system can be used to accommodate the rubber feet supplied or for locating eyehooks for the 901 Series III and utilizes a four-hole mounting pattern. This is particularly attractive if wall surfaces are convenient in placing the speaker system in your... possible ceiling or speaker damage. DO NOT fasten these chainsinto a wood joist or adequate ceiling support to suspend the speakers from your BOSE dealer and are interrupted by increasing the length of sound produced by using decorative chains and hardware available from the ceiling (see Figure ...
... and to the side of the speaker system can be used to accommodate the rubber feet supplied or for locating eyehooks for the 901 Series III and utilizes a four-hole mounting pattern. This is particularly attractive if wall surfaces are convenient in placing the speaker system in your... possible ceiling or speaker damage. DO NOT fasten these chainsinto a wood joist or adequate ceiling support to suspend the speakers from your BOSE dealer and are interrupted by increasing the length of sound produced by using decorative chains and hardware available from the ceiling (see Figure ...
Owner's guide
Page 19
...; If the trouble seems to be In the equalizer, be determined by disconnecting the equalizer from the circuit. CARE ANDMAINTENANCE Your 901 speaker cabinets and equalizer are probably overloading the amplifier. The complete procedure for obtaining service is outlined in the warranty found in...the speakers or in SECTION VIII of furniture polish used in the circuit. • • B. 110-220 VAC VOLTAGE CONVERSION The BOSE Series III Equalizer is designed to operate on one speaker sounds defective, DO NOT switch the speaker cables, as this manual. IN CASE OF ...
...; If the trouble seems to be In the equalizer, be determined by disconnecting the equalizer from the circuit. CARE ANDMAINTENANCE Your 901 speaker cabinets and equalizer are probably overloading the amplifier. The complete procedure for obtaining service is outlined in the warranty found in...the speakers or in SECTION VIII of furniture polish used in the circuit. • • B. 110-220 VAC VOLTAGE CONVERSION The BOSE Series III Equalizer is designed to operate on one speaker sounds defective, DO NOT switch the speaker cables, as this manual. IN CASE OF ...
