Bose 901 series iv speaker driver

These are the 8ohm, 4 hole version and could also be found in the series i. Ebay offers a capacitor replacement kit for your bose 901 eq. I recently purchased a sansui 9090db in near mint condition. The bose 901 loudspeaker is perhaps one of the most famous speakers in the world. I said over the phone, and felt a satisfying chill run down my spine.

They are efficient speakers that can be driven with a 10watt amplifier. At first i thought i did a poor foam job and that was the cause, so i replaced the driver that i heard the rattle from and it was the same. This would be the end of a glorious 50year run for this fine old speaker, and its probably safe to say that if founder amar bose were still alive, no one would dare discontinue this model regardless of low. For a 1watt input we measured an integrated sound output from the stereo pair at about 8 feet back from their center line of 86 dbspl. And by the time bose got to series iv, there was no resemblence to the speakers i owned. 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. Inexpensive and a must to do, especially on your series iiiiv. Speaker repair foam edge repair kit for bose 901 and bose 802 speakers. Bose 601 series iv speakers wired series specs cnet. Buy grs rsb9011 replacement speaker driver for bose 901 412 1 ohm. Im not sure what this terminal is used for but the labels on the speaker. Jan 04, 2010 id read that the series iv through vi used similar wiring.

Individually or in multiples, replacing your legendary but aging speakers has never been easieror achieved better results. 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 the back wall, and one driver directed into the lis. Replacement full range for bose 901 series 3 thru 7, 1 ohm driver, 3 bolt plastic frame. Bose 901 speaker foam edge replacement and repair youtube. The use of graphic or parametric equalizers, instead of the bose 901 equalizer, will result in unsatisfactory performance.

Find great deals on ebay for bose 901 and bose 901 series vi. I just learned that the bose 901 is no longer being made available from bose corporation. Oct 26, 2009 can someone give me advice with my bose 901 speakers. Speaker parts, cones, speaker bose foam edges, woofer repair. Nov 27, 2004 quite a different story with the subsequent versions of the 901.

Bose 901 series iv speaker driver with foam surround. 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 eq901biii is a direct replacement for existing bose 901 series iii equalizers providing improved clarity, imaging and range. 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. The venerable bose 901 discontinued after 50 years bose. The 301 series iv is designed for use with standard amplifiers, receivers and other.

Couldnt believe how bad they were compared to the original 901s and the series ii. If the front had a bunch of drivers and the rear sides had only one driver, that might be better. Bose 901 technicalmodifications the klipsch audio community. Replacement full range driver for bose 901 series v speaker. Great savings free delivery collection on many items. Does not replace older bose style with 4 hole metal frame. Built november 4th 1974 and has doped fabric surround. The use of 901 series vi speakers without the 901 series vi active equalizer will result in improper performance.

I have refoamed them and when i play them, they rattle. Pair vintage bose 901 series vi directreflect ing speakers great sound. Bose 901 replacement speaker driver for bose 901 series i. The bose 901 enclosures house nine small, specially designed drivers that have 4inch cones and powerful magnetic structures. Im very interested in the bose 901s for a variety of reasons, but im having a very hard time finding a comprehensive source of 901 information. Inexpensive and a must to do, especially on your series iii iv. I have them run with their own equalizer and a 400 watts rms stereo technics sa700 power receiver. Find great deals on ebay for bose 901 speakers and bose speakers 301.

Bose 901 series vi speakers overview and full product specs on cnet. We delete comments that violate our policy, which we encourage you to read. Are the bose 901 speakers still considered among the best. View and download bose 901 series iv owners manual online. 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. All bose speakers could be made to sound better by simply replacing the drivers, crossovers and cabinets. The bose 901 active equalizer is a highly sophisticated electronic console containing ten. 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. Does anyone here know how to upgrade the internal cable of the bose 901 series vi. We will show you how to remove the grills, clean the speakers, and replace the foam. Your chance to own these top of the line bose speakers, coveted by an entire generation including yours truly who could not afford them when new, and had to content myself with some bose 201s in the late 80s. Every driver is hand checked and tested, based on a 2 db window. From what bose told me they have been a lot improvements to the latest 901s and their bose equalizer that just came out about 7 months ago.

Replacement for bose 101 used with built in 4 ohm resistor. Located maintaining the distances specified by bose, and hanging on the ceiling, the power of the bose 901 series 4 is almost unlimited. This is approximately what the drivers for your speaker should look like. These new speaker driver cones are made of part paper and part metal and the surrounds feels like they are made of some kind of cloth like they used in their series 1 and 2. Can someone give me advice with my bose 901 speakers. 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.

These electrolytic capacitors dry out over time and must be replaced. 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. I am redoing my series iv 901s and the re edging information is priceless. Bose 901 3 drives driver from series v vintage speakers working condition 0 results. Replacement full range driver for bose 901 series iv speaker ss. Grs rsb9011 replacement speaker driver for bose 901 412. Legendary bose speakers completely refurbished 901 series iv. The center channel is 1972 series 2, and the surrounds are 1974 bose 901 series 2 walnut finish continentals. Using the diagram above as a starting point i modified it to reflect the wiring found in my series iv. What does paul think about its performance and along the way we get treated to another story. Hirsch 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. Stereo receivers for bose 901 directreflecting speaker system. I purchase a set of them off of ebay as a fixer up project as they required new surrounds. Based on extensive research in the fields of speaker design and psychoacoustics, the groundbreaking speaker system won immediate acclaim for its.

When you walk into a bose dealership or bose store, dont let them use those cds that are produced by bose. This bose 901 speaker produce remarkable sound that emulated from these small for the time speakers. From what bose told me they have been a lot improvements to the latest 901 s and their bose equalizer that just came out about 7 months ago. The following are direct quotes on the bose 901 series iv from consumer guide stereo speakers dated november 1979. Couldnt believe how bad they were compared to the original 901 s and the series ii. Id read that the series iv through vi used similar wiring. Are they worth me purchasing or did things go down hill. In audiophile circles bose is usually a punch line to a joke, or even seen as the great corporate evil of audio. Bose 901 series v the first cabinet in the series to include venting as part of its design. The eq901biii features dual equalization curves, normal and enhanced, which will accommodate your series iii depending on personal preference. Replacement full range for bose 901 series 2 thru 7, 1 ohm driver, 3 bolt plastic frame. 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. Individually or in multiples, replacing your legendary but aging speakers has never been.

Quite a different story with the subsequent versions of the 901. Replacement speaker driver for bose 901 41 2 1 ohm this drivers parameters were carefully optimized to match the performance of the classic bose 901 loudspeaker systems. Unfollow bose 901 speakers to stop getting updates on your ebay feed. 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. By using this site, you acknowledge we use cookies to enhance your experience. Grs rsb9011 replacement speaker driver for bose 901 412 1 ohm. Replacement drivers for bose 901 series iii to vi track page views withauctivas free counter 174099002273. Bose 901 series iv speakers selling as is no grills, no. In this video, we go into detail on the correct installation of new surrounds for the bose 901 speaker system. It is a passive, twopiece mirror image stereo pair home loudspeaker in a bookshelf configuration. When i turn on my home stereo when i turn the equalizer on it since it popping sound. Grab a backup while available at this price 2745195841. Speakers bose 802c with bose 901 equalizer toms guide forum.

Jul 17, 2012 in this video, we go into detail on the correct installation of new surrounds for the bose 901 speaker system. Grs rsb9011 replacement speaker driver for bose 901 412 1. Buy bose 901 and get the best deals at the lowest prices on ebay. The 901 uses no crossover network, and an electronic active equalizer is required to generate a flat response in the listening room. I own a pair of bose 901 series 4 speakers since 1979. Replacement full range driver for bose 901 series v. Bose corporation bose 901 series iv equalizer n wires. But i can share some things i learned about the bose 901 speaker from the man himself, because i took professor bose s acoustics class when i was undergraduate, and we got to ask him lots of questions. Bose 901iii speaker driver replacement to cure speaker foam rot.

You must have a bose 901 active equalizer for a complete 901 speaker system. Bose 601 series iv speakers wired series sign in to comment. 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. At first i thought i did a poor foam job and that was the cause, so i replaced the driver that i. They seem like a good replacement for 901 series v or vi speakers. We delete comments that violate our policy, which we.