Bose 901 IV specifications

Brand : Bose

The fourth edition of the Bose 901, a direct and indirect radiating loudspeaker, which was introduced in 1968, was presented two years after its predecessor. The speaker housings and the HVC drivers were taken from the Series III. The equalizer of the Series IV has been greatly revised. The control range is now ±8 decibels. Visually, it is distinguished by a continuous black stripe on the aluminum front.

General

Tech nical data

Special equipment

Manufacturer: Bose
Model: 901 IV
Type: Loudspeaker
Years of construction: 1978 - 1985
Manufactured in: USA
Color: Natural walnut
Original price approx.: 2'798 DM (pair, incl. Equalizer)

Stand
separate equalizer, which is looped in between preamplifier and power amplifier or via tape monitor
special HVC speaker chassis ("Helical Voice Coil")

Other models of the same series (see link overview)
Bose 301 II< /li>
Bose 501
Bose 601
Bose 901
Bose 901 II
Bose 901 III
Bose 901 IV
Bose 901 V
Bose 901 VI
Bose 901 VI Limited

Excerpt from brochure: Bose 901

Stereoplay Issue 01/1980
"It's amazing what sonority comes out of such a small box. I was particularly impressed by the powerful bass reproduction, with which low frequencies become physically tangible. Even doors are beginning to vibrate and shelves are rattling. A bass drum stands in its full size in the room and makes the eardrum tremble. In addition to the enormous bass reproduction, I noticed the oversized spatiality that is artfully produced by this speaker. From a small living room, the Bose conjures up a huge hall. The listener really believes that he is standing in the middle of the concert hall."