Bose 901 Series II - Manuals

Page 3 - INTRODUCTION; II. UNPACKING YOUR 901s

t r. INTRODUCTION T>i3nk vou for purchasing the BOSE 901 Series D Oireci/Reflecung * speaker syitem. The listening enjoyment ex perienced with your BOSE 901s culminates many years of research and dedication to the art of bringing the finest musical reproduction into your home. THE BOSE 901 with ...

Page 4 - TABLE 1 - WIRE LENGTHS FOR EACH SPEAKER

The following guidelines should be followed in placing the speakers relative to other surfaces in the room. The basic idea is to provide space around the speakers to allow sound waves coming from the rear of the speaker to properly disperse. 1. The speakers should be placed at least 18 inches from t...

Page 5 - STANDARD RECEIVER/AMPLIFIER TERMINAL MARKINGS

i Start with the Part 1 portion of your 901 system. Place it on the left side of your room. Connect this left speaker to the left channel speaker output terminals of your amplifier or receiver. (If there is a choice of impedances on the amplifier output, use the terminal marked "8^2" or "...

Page 8 - fe

2. ALTERNATE METHOD I (Using PRE-AMP OUT and MAIN IN Connections with Receivers or Integrated Amplifiers (Refer to Fig. 4.) ’I m fe mo if«« •VM* t« 11 1 1 FIG. 4 3. An alternate method of connecting the BOSE Active Equalizer makes use of the PRE-AMP OUT and MAIN IN jacks provided by many manufacture...

Page 9 - CONTROL AMPLIFIERS HAVING TWO TAPE MONITOR CIRCUITS

4. ALTERNATE METHOD HI iUsing FOUR-CHANNEL DECODERS» As previously stated, the BOSE Active Equalizer should be connected before the final stage of amplifica tion of the amplifier channels powering the 901 speakers. Additionally, the Equalizer should be connected at a point in the signal path follow...

Page 10 - IV. GETTING THE MOST OUT OF YOUR 901 SPEAKERS

E. CONNECTING HEADPHONES OR CONVENTIONAL SPEAKERS It is important to remember that the BOSE 901 Active Equalizer introduces substantial boost in the range below 100 Hz and above 3000 Hz to match the power response of the 901 speakers. This means that if other speakers or headphones are played while ...

Page 14 - IN CASE OF DIFFICULTY; VI. TECHNICAL INFORMATION

FIG. n Since the second pair of speakers is connected in parallel with the first pair, a second Equalizer is not required. For this reason, the BOSE 901 is available at lower cost as an "Add-On Pair," without the Equal izer. To connect the second pair of speakers, simply connect the 8 OHMS ...

Page 15 - ACCESSORIES AND OPTIONS

VI B. The Speaker Dimensions: 20-9/16" W x 12-3/4" H x 12-7/8" D Weight: 33 pounds Nominal Impedance: 8 ohms C. Percentages of Direct and Reflected Sound Radiation Power radiated by reflection: 89% Power radiated directly: 11% (Design percentages based on concert hall acoustics) D. Power...

Page 16 - VIII. FIVE YEAR WARRANTY; BOSE CORPORATION • THE MOUNTAIN • FRAMINGHAM, MASS. 01701

VIII. FIVE YEAR WARRANTY We warrant the BOSE 901 speaker system to be free from defects in material and workmanship. BOSE will replace any defective part and correct any defect in workmanship or performance, without charge for either parts or labor. The obligation of BOSE under the terms of this war...