Question about Bose 901 VI Main / Stereo Speaker

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I have a set of 901 IV with no equializer, I am

I have a set of 901 iv with no equializer I am wondering if the equaliser for bose 901 series vi will work?

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As far as I know, any equalizer will work. There is a guy on here that might know more about them, but I never had the Bose equalizer and I have Bose speakers for 35 years. The guy at the electronic store back then sold us a little equalizer at first, we graduated from that a long time ago, and now on the 3rd or 4th one. No problem, works great, sounds better than ever. Hope this helps.

Posted on Jun 27, 2010

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You can use any equalizer you want in maddition to the Bose EQ, but not in place of the Bose EQ. The 901s may not longer be the best $1500 speakers on the market, but they are still the best $1500 speakers on the market for their size. No bookshelf-sized speaker that I know if even comes close. But the EQ is a key reason for that. It attempts to flatten out the 901s frequency response which, without the EQ, drops off at both ends. The speakers may sound OK to you but if you ever heard them with the Bose EQ, I'm fairly certain you would prefer the sound that way.

Posted on Mar 30, 2014

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SOURCE: I have a set of 901 IV with no equializer, I am

It will work, but theoretically less than 100% optimally as far as frequency balance; it would be a whole lot better than not having one at all.

Now, if you're contemplating using 901's in a multichannel environment, you have but to ask and I can provide that solution, too. Clue: you'll need a separate 2-channel amp for the 901's.

Posted on Mar 18, 2010

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1 Answer

Not sure of how to wire these speakers ( internal ) Bose 901 series iv


Found on Google Search: "bose 901 internal wiring" You must first identify which series you have. The first two series were acoustic suspension, and used nine 8 ohm drivers in a series/paralel configuration. Series III through VI used nine .9 ohm drivers all wired in series. Series III and IV had an additional terminal for use only with the Bose Spacial Control Receiver. Series III through VI are easy to identify, as there are three ports sticking out the back of each enclose. The 1st two series have no ports.

Jan 17, 2011 | Bose 901 VI Main / Stereo Speaker

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I have a set of 901 IV with no equializer, I am wondering if the equaliser for bose 901 series VI will work?


It will work, but theoretically less than 100% optimally as far as frequency balance; it would be a whole lot better than not having one at all.

Now, if you're contemplating using 901's in a multichannel environment, you have but to ask and I can provide that solution, too. Clue: you'll need a separate 2-channel amp for the 901's.

Mar 18, 2010 | Bose 901 VI Main / Stereo Speaker

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How to refoam bose 901 IV


There are many kits available on eBay, with instructions.

Search "bose 901 refoam", check the 'include description' box.

Dec 04, 2009 | Bose 901 VI Main / Stereo Speaker

1 Answer

Latest model surround receiver for bose 901 speakers VI


I can think of no reason any amp pushing 120 watts would not work with 901-VI's. They're very efficent and will probably play louder and cleaner than you would ever need. As I recall, my old series IV's have no maximum amplifier rating specified, but I did blow up a bridged Carver M-400 Cube (pushing 400 watts to one speaker with a DVD-Audio of Yes - Fragile cranked dangerously high) with them. I'm convinced my speakers are indestructible in any home application.

Keep in mind that whatever you decide to use as your control/amplifier section, a pair of 901's need a dedicated stereo amplifier. I suspect you're thinking surround sound so a receiver with separable preamp/amp channels, due to the Activbe EQ, would be needed and as far as I know they don't exist. A separate stereo amp for the 901's was my solution. I run a Carver AV-406 (5-channel amp) for my 901's in Front, 2 Subwoofers and the Rear Surround channel, with the Active EQ between the receiver and the 901's amp channels. My receiver controls everything and just drives the Center and Surrounds.

Modest amps would work but at very loud volumes may go into clipping, which is bad for any speaker. 120 clean watts is good. I'm using only 110W for mine.

A Carver M-200 is a fine, efficient amplifier that would have you cooking just fine (2x100W).

Mar 20, 2009 | Bose 901 VI Main / Stereo Speaker

1 Answer

How do you access the front drivers on bose 901 iv speakers


There are staples in th corners and outside edges of the grills. They are the same color as the grills, so they are kinda hard to see. I use a sidecutters to grab them, and pry them out. Just be a bit patient, so you don't damage your grills.

Mar 18, 2009 | Bose 901 VI Main / Stereo Speaker

1 Answer

Bose 901 Series IV BLOWN?


Yes, if you hear any sort of crackling sound, that means it has blown. Given the cost of these units, I would suggest repair. I would also suggest contacting Bose, as many of their products have a lifetime warranty, so you might be in luck. Although, blowing your speakers because you made your speakers go louder than they were supposed to, is no covered in the warranty.

You can approach the repair in 2 ways..
1) Send in to Bose for repair - suggested
2) Take it to a service center, and see if they will be able to recone the speakers or replace. Most service centers are familiar with the 901 series, so you should be ok. If they have no idea what your talking about, stay away.

But yes, they are worth fixing.

- OPTiC
DJ & Pro Audio Repair

Jan 17, 2009 | Bose 901 VI Main / Stereo Speaker

2 Answers

Bose 901 equalizer hookup


how do I hook up the bose 901 EQ to a yamaha DSP3090??

Nov 08, 2008 | Bose 901 VI Main / Stereo Speaker

2 Answers

901 EQ1915


No. You may think you're doing it with the first solution, but the EQ curves introduced by the Bose Active EQ are extremely steep at the extremes. One could just as easily advise that the RIAA phono EQ curve (look it up) could be simulated through an external EQ, but why would you want to try? The best you would come up with is a ballpark match. Don't we really strive for accuracy?

Bose 901's employ 9 full-range, 4"-diameter drivers in each cabinet, hence there are no tweeters, no woofers and no internal crossovers. You can probably imagine how much EQ it would take to make a full-range driver, with its inherent limited voice coil travel and steep roll-off at the extremes, respond as if it was, say a 12-inch woofer, or a tiny dome super-tweeter.

Every series of Bose 901 that came out had its own specific matched series of Active EQ to compensate electronically for the natural limitations of the individual drivers. I imagine there were a lot of major simlarities from one to the next and that you would not be too far off the mark to mix a Series-IV EQ, for example, with a Series-V speaker pair, but I really doubt you're going to dial in the same curves with a manually adjusted equalizer without some specs as a guide.

Try to find the correct Active EQ on eBay. You’ll be much happier with the results.

Dec 01, 2007 | Bose 901 EQ1915 Home Equalizer

1 Answer

Cannot hook eq to my receiver


The speakers will not sound right. You dont have two tape monitors on this receiver? You can simply use the tape otput to the EQ input, and then the Tape monitor input to the EQ output leads. Good Luck

Jun 09, 2007 | Bose 901 VI Main / Stereo Speaker

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