Bose 901 series iii drivers

Do not attempt to replace the 901 eq with any graphic or parametric eq. What to do with 19 bose 901 drivers heres an idea not really. There may be no singular product in modern audio history that has generated more accolades, derision, or pure controversy than the bose 901 loudspeaker. You may have some luck with a graphic or parametric eq but according to bose the 901 active eq is a dedicated device, specifically designed for the 901 speakers. Bose 901 speaker driver repair surround tool how to youtube. Although they have undergone a continuing process of design modification and the new series v differs in almost every detail from the original model 901the basic concept of. Balance ot reflected and direct sound the bose 901 series ill is designed to use your listening room walls to simulate the reflective properties of the much larger stage wall found behind the instruments of a live per formance the901 series ill uses nine drivers, eight directed. The center channel is 1972 series 2, and the surrounds are 1974 bose 901 series 2 walnut finish continentals. Bose used foam surrounds at least in the series iii and up and they rotted within just a few years, prompting bose to offer good deals on replacement speakers to prior purchasers in the 80s.

May 27, 2017 bose used foam surrounds at least in the series iii and up and they rotted within just a few years, prompting bose to offer good deals on replacement speakers to prior purchasers in the 80s. Vintage original bose 901 speaker replacement drivers for bose 901 series iii. Traditionalists, before you cry foul, think of the popularity of dspbased speakers these days. Bose has not demonstrated any interest in this direction since series iii cheapened the design to increase profits at the expense of performance. The iv was the only generation with an extra connection for the bose spatial control receiver, which permitted the user to attenuate either the inner or outer rear banks, to widen or narrow the image. Couldnt believe how bad they were compared to the original 901s and the series ii. Love playing music, games and videos on your computer. Long ago i watched a friend take one 901 series iii or iv and hook it into the wall outlet with a cut extension cord. Back to the series ii 901 bose the classic speaker pages. Bose 901iii speaker driver replacement to cure speaker foam rot. In talking with bose salesmen, 901 has been considered a legacy product that is only available from many bose stores by special order. Later models used a v roll cloth surround that last forever. So my father just gave me a set of bose 901s he bought while stationed in okinawa in the late seventies, and as is typical for these speakers all of the surround foam is gone.

As you have noted the surrounds on the 901 drivers are cloth that is shelacked for stifness. Are the bose 901 speakers still considered among the best. Bose 901 series ii almost identical to the series 1, the only differences are the walnut trim in lieu of the cloth grill and the metal bose logo on the lowerright corner of the speakers front. The bose 901 loudspeaker is perhaps one of the most famous speakers in the world. Dec 16, 2008 as far as ebay is concered, i think buying just the drivers will be safer because from the pics and description i should be able to determine that they are bose 901 drivers. Back to the series ii 901 bose the classic speaker. Currently i have some spares, of which i hope to make another working. Years after my warranty expired bose offered me a pair of series 6 for cost because the foam began to crack on the series ii. Bose 901 series iii made in the early 70s, these cabinets are comprised of a fullwood enclosure with reflective technology to imitate music being.

As you have noted the surrounds on the 901 drivers are. I have peeped the 901 series because they are not the obvious choice and they are not readily available in bose stores. Ebay offers a capacitor replacement kit for your bose 901 eq. Couldnt believe how bad they were compared to the original 901 s and the series ii. Quite expensive to have the surrounds replaced on 18 drivers. Apr 26, 2018 depending on ones viewpoint, the bose 901 speaker system might be considered a revolutionary approach to sound reproduction, or simply a workable combination of wellestablished and sometimes deprecated techniques. As for refoaming, the series iii came with foam surrounds that would need to be replaced. Jun 30, 2015 years after my warranty expired bose offered me a pair of series 6 for cost because the foam began to crack on the series ii. But i can share some things i learned about the bose 901 speaker from the man himself, because i took professor boses acoustics class when i was undergraduate, and we got to ask him lots of questions. The bose 901 series ill is designed to use your listening room walls to simulate the reflective properties of the much larger stage wall found behind the instruments of a live per formance the901 series ill uses nine drivers, eight directed towards. Replacement full range for bose 901 series 3 thru 7, 1 ohm driver, 3 bolt plastic frame does not replace older bose style with 4 hole metal frame.

I actually ran a home theater system with bose 901 front speakers, a bose center speaker, and bose 301 rear speakers. You are missing the active eq but that should not cause much. Suffice it to say that the series i and the series ii are basically the same speeaker, and the series iii, iv, v and vi are basically alike. All bose products come with a limited warranty based on your product and region. The switches should be pushed in at the top and the treble contour rotary switch should be on the dot. Eight of the drivers are angled to the rear, while the ninth is mounted on the front of the enclosure facing the listening area. Vintage original bose 901 speaker replacement drivers for.

Ive also run the same system with 501s in the front. From product info, to customer service help and contact information, bose support can show you how to get the most from your bose products. Does not replace older bose style with 4 hole metal frame. Companion 2 series iii speaker system pdf manual download. Resurrounding drivers may help those drivers that have scraping vc but the stuck ones may be problematic. Bose 901 series ii is not to old assuming it is in good physical shape. The bose 901 active equalizer is a highly sophisticated electronic console containing ten. As far as ebay is concered, i think buying just the drivers will be safer because from the pics and description i should be able to determine that they are bose 901 drivers. Speakers original replacement woofer s drivers speakers. Hello, i have a pair of 1977 bose 901 series iii along with a series iii bose equalizer. Bose 901 driver question bose the classic speaker pages. Having said that, i used a pair of 901iii in my office at work for almost 10 years.

The 901 was released in 1968 and was a conventional design consisting of two floorstanding speakers. Bose 901 directreflecting speaker system the bose 901 active equalizer is an integral part of the 901 directreflecting speaker system allowing for proper performance and sound. Introduced in 1968 by a then fouryearold concern named after its miteducated founder, the. The bose 901 has created more of a stir in audio circles than any other loudspeaker we can think of, with the possible exception of the original acoustic research system. Im not a huge fan of these speakers but i bought them because my father is, i really have no need or room for a set of 901s in my house but i figured i could fix up these speakers and it would make a nice gift at some point.

Because the bose 901 makes use of nine fullrange drivers, it takes advantage of an inline equalizer to make the speakers sound the way they are intended. The bose 901 series i and series ii equalizers are interchangeable as they both produce the same frequency response curves, but if you really cant come up with one, it is possible to use two equalizers daisychained together. Aug 28, 2016 bose 901 iii speaker driver replacement to cure speaker foam rot. Supplied with variable active equalizer consolette. I took the offer as it was less money than replacing all 18 drivers. It was sold until 2016, when the 901 series vi was discontinued. Jan 04, 2010 the cabinet design, drivers, and wiring in speakers themselves havent changed functionally since the series iii. Every driver is hand checked and tested, based on a 2 db window. Please take very good look at the pictures so you know what to expect. Test setup 901 i and ii speaker test 901 i and ii equalizer test 1. If you have any questions about this item, please message me and i will get back to you as soon as possible. Replacement full range for bose 901 series 3 thru 7, 1 ohm driver, 3 bolt plastic frame. Replacement drivers for bose 901 series iii to vi track page views withauctivas free counter 174099002273. Youll enjoy performance thats significantly better than your original speakersand.

When i redid mine i used the v roll so i would never have to redo 18 drivers again 9 per cabinet. The bose 901 enclosures house nine small, specially designed drivers that have 4inch cones and powerful magnetic structures. Movingcoil loudspeaker housing 9 fullrange 4cone drivers arranged for 11% directradiated and 89% reflected sound. If one or more drivers move inward the wiring should be checked. The cabinet design, drivers, and wiring in speakers themselves havent changed functionally since the series iii. And by the time bose got to series iv, there was no resemblence to the speakers i owned. Wait until you try it with the companion 2 series iii multimedia speaker system. Does anyone here know how to upgrade the internal cable of the bose 901 series vi. I refoamed all 18 of series 3 bose 901 drivers a while back. Bose directreflecting speaker system owners manual. Replacement full range driver for bose 901 series v speaker. We have 1 bose 901 series iii manual available for free pdf download. If one or more drivers move inward the wiring should be. Bose 901 series v the bose 901 series speakers, which have been manufactured since 1968, probably qualify as having the longest tenure of any currently made hifi product.

These electrolytic capacitors dry out over time and must be replaced. What does paul think about its performance and along the way we get treated to another story. I was thinking about using my jvc receiver that has a built in equalizer. Stereo receivers for bose 901 directreflecting speaker system. Oem bose 901 series ii 103342 fullrange speaker driver with. Makes restoring the drivers on the 901 sooo much easier and you end up with a.

Bose 901 series iii best 26 piece foam speaker surround repair kit. What to do with 19 bose 901 drivers techtalk speaker. Bose companion 2 series iii multimedia speaker system. Bose companion 2 series iii quick setup manual pdf. Grs rsb9011 replacement speaker driver for bose 901 412 1. Over the past several years, manufacturers of receivers have made fewer products compatible with external equalizers including the bose 901 equalizer. Choose your region or country to get help with your bose products. Inexpensive and a must to do, especially on your series iii iv. Inexpensive and a must to do, especially on your series iiiiv. View and download bose 901 series iii owners manual online. Refoaming bose 901 series iii speakers, all 18 drivers hey folks. I realize that the equalizer built in will not even come close to bose qualification. The other thing i would like to ask you guys is lets say a bose 901 iii or iv or v or even vi comes up for sale.

Replacement full range driver for bose 901 series v. Quite a different story with the subsequent versions of the 901. The other thing i would like to ask you guys is lets say a. However, this is my only receiver now for my pioneer is shelved. Replacement drivers for bose 901 series iii to vi track page views withauctivas free counter 174099002273 origin bose 901 speaker driver. The 901s came to me with the usual foam surround rotted away on all the drivers i repaired these and quickly found out why people in general like these speakers, with the eq in place they can sound quite warm and moist you know the typical bose sound. This driver has an impedance of 1 ohm, and should be used only to replace the 412 driver in the bose 901 series iii or later and bose 802 loudspeakers. In audiophile circles bose is usually a punch line to a joke, or even seen as the great corporate evil of audio. View and download bose companion 2 series iii quick setup manual online. Getting the drivers soldered back in was a royal pain in the butt. It represents only a tiny fraction of overall bose sales. Individually or in multiples, replacing your legendary but aging speakers has never been.

Bose 901 series vi v2 bose the classic speaker pages. The cone of each driver is made of a treated hemp paper is blue in color and bears the name bose on the dust cap. Compatibility with other bose loudspeaker models or automotive audio systems has not been verified. The system has nine drivers per channel, a separate amplifier unit, and an equalizer. Plus, find details on returns, exchanges, shipping, and delivery. I know without the eq the 901 sound like an am radio. Refoaming bose 901 series iii speakers, all 18 drivers. Once you learned the trick i used cloth pins for centering the vc, 4 for each driver it was relatively straightforward. Bose 901 series iii equalizer original vintage wood shell turns on not tested. Bose 901 drivers are awkward to redo the surrounds on and get the voice coil properly. Track your order or get updates on service requests.