Обзор акустической системы Bose 901 v series 901 5 с прямым отражением

Type: 9 driver loudspeaker system

Recommended Amplifier: 10W (minimum)

Impedance: 8Ω

Full Range: 9 x 114mm

Finish: oil rubbed walnut veneer

Accessories: includes active equalizer

Dimensions: 533 x 320 x 330mm

Weight: 16kg


The Bose 901 series speakers, which have been manufactured since 1968, probably qualify as having the longest tenure of any currently made hi-fi product. Although they have undergone a continuing process of design modification— and the new Series V differs in almost every detail from the original Model 901—the basic concept of the system remains unchanged to this day.

The design of the Bose “Direct/ Reflecting” speaker is based on the fact that most of the acoustic energy reaching a listener in a concert hall has been reflected at least once from the ceiling, floor, or walls. Dr. Amar Bose, president and founder of the Bose company, decided that in order to give a subjective effect more like that of a live performance, a similar proportion of a speaker’s sound output should be reflected from a home listening room’s walls.

To that end, every Series 901 speaker, from the first model to the new Series V, has used nine identical full-range drivers, with two groups of four on its angled rear panels and a single driver facing forward. Before reaching the listener, the output of the rear drivers is reflected from the wall a foot or so behind the speaker, and usually from a side wall as well. The front driver, which provides only 11 per cent of the system’s output, supplies the early-arrival information needed for stereo localization.

The 901 uses no crossover network, and an electronic active equalizer is required to generate a flat response in the listening room. The equalizer, which is furnished with the speakers, normally operates in an amplifier’s tape-monitor loop, whose functions are duplicated on the equalizer.

The Bose 901-V differs from the earliest versions, which had acoustically sealed wooden cabinets, in using an unusually sophisticated form of venting. The cabinet is a very complex plastic molding that Bose calls an “Acoustic Matrix” enclosure. Although the drivers are isolated from each other, their outputs are combined through a network of nine chambers, two couplers, and three reactive air columns.

The nominally 8-ohm Bose 901-V is efficient enough to be driven by a 10-watt amplifier. Because of its multiple drivers and flat-wire voice coils, the speaker can also handle very high power levels.

$ 384 - 1,400 per pair

group of bose 01 are
Bose 101 Bose 202 Bose 301 Bose 401 Bose 501 Bose 601 here Bose 701 Bose 801 Bose 901 final

parallel competitor

JBL Sonus faber McIntosh sansui