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Bose 901 Series II Speakers * Equalizer * Fully Serviced
The Bose 901 Series II, released in the early 1970s, is a legendary vintage speaker system famous for its Direct/Reflecting design. It features nine 4.5-inch full-range drivers per cabinet (one facing forward, eight facing backward). These speakers must be used with their dedicated active equalizer to correct their frequency response.
Key Features & Design
- Direct/Reflecting Technology: The unique cabinet design relies on bouncing sound off your listening room walls to create an expansive, concert hall-like soundstage.
- No Crossover Network: Because they utilize nine identical full-range drivers, the speakers avoid traditional crossover distortions.
- Durable Drivers: Unlike many 1970s foam-surround speakers, the Series II drivers use treated cloth surrounds, meaning they do not suffer from the dreaded "foam rot" that plagues later models.
The Active Equalizer
The matching active equalizer is the "heart" of the 901 system and is required for operation. It connects via a tape monitor loop on your amplifier or between the pre-amp and power amp. It applies massive bass and treble boosts (up to 24dB) to compensate for the limitations of small full-range drivers.
$500.00
Bose 901 Series II Speakers * Equalizer * Fully Serviced—
$500.00
Description
The Bose 901 Series II, released in the early 1970s, is a legendary vintage speaker system famous for its Direct/Reflecting design. It features nine 4.5-inch full-range drivers per cabinet (one facing forward, eight facing backward). These speakers must be used with their dedicated active equalizer to correct their frequency response.
Key Features & Design
- Direct/Reflecting Technology: The unique cabinet design relies on bouncing sound off your listening room walls to create an expansive, concert hall-like soundstage.
- No Crossover Network: Because they utilize nine identical full-range drivers, the speakers avoid traditional crossover distortions.
- Durable Drivers: Unlike many 1970s foam-surround speakers, the Series II drivers use treated cloth surrounds, meaning they do not suffer from the dreaded "foam rot" that plagues later models.
The Active Equalizer
The matching active equalizer is the "heart" of the 901 system and is required for operation. It connects via a tape monitor loop on your amplifier or between the pre-amp and power amp. It applies massive bass and treble boosts (up to 24dB) to compensate for the limitations of small full-range drivers.
