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General| Impedance | 8 ohms |
|---|---|
| Enclosure | Acoustic suspension |
| Drivers | 9 x 4.5-inch full-range drivers |
| Equalization | Active equalization required |
| Dimensions (H x W x D) | 12.5 inches |
| Weight | 35 lbs |
| Crossover | None (full-range) |
Guidelines for positioning speakers for optimal sound dispersion and response, including distance from walls and floor.
Instructions on selecting speaker wire gauge and length, and ensuring correct speaker phasing for stereo connections.
Details on integrating the Active Equalizer using the preferred method via the tape monitor circuit.
Instructions for connecting a tape recorder to the system using the equalizer's terminals.
Important precautions for using headphones or other speakers with the equalizer to prevent damage.
Fine-tuning speaker position to adjust frequency response and sound dispersion within the listening room.
Explanation of the equalizer's controls, including 'Below 40', 'High Freq', and 'Treble Level'.
Guidance on how room acoustics impact sound quality and methods to improve the listening environment.
Recommendations for amplifier power and impedance matching for optimal performance with the 901 speakers.
Discussion on the benefits and ideal placement for using a second pair of BOSE 901 speakers.
Details on system packaging, weight, and carton dimensions for the BOSE 901 Series II.
Specifications and physical dimensions of the individual BOSE 901 Series II speaker unit.
Information on continuous and peak power handling, and recommended amplifier power ratings.
Guidance on amplifier damping factor requirements for proper operation with the 901 speakers.
Technical details on the drivers, magnets, and excursion capabilities of the 901 speaker's components.
Technical specifications for the BOSE Active Equalizer, including dimensions and impedance.
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