Question about Bose 901 VI Main / Stereo Speaker

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Compatable receiver list for Bose 901 series VI

I bought a Denon AVR 3808 receiver. Bose says my speakers EQ is not compatable for this AVR.
Is there a list of compatable receivers for these speakers...seems confusing...should I return the speakers or the AVR

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  • donhernandez Dec 27, 2008

    i have a bose 901, i wanna if it will work with denon receivers? im just new and im in the process of getting a denon as my receiver.thanks

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I contacted the Customer support folks at Bose. Here is what they said: With a stereo receiver, the equalizer is run through the tape monitor section in the back of the receiver. The receiver's tape monitor output, left and right, runs to the amp input section of the equalizer, left and right. Then the amp output section of the equalizer, left and right, runs to the receiver's tape monitor input section. With a surround sound, home theater, type of receiver, the theory is the same, but the connection is through the preamp-out/ main amp-in section of the receiver. Not all receivers have this feature. Most, in fact, do not. Check the back of the receiver. There would be a connection made by two U-shaped clips. The plugs would be pulled out. Then connect from the preamp-out to the equalizer's amp input section; and from the equalizer's amp output section to the main amp-in. This effectively isolates the equalizer so that it is not affecting the other speakers in the system or the receiver's surround processing. Attached is a current list of known 901-home theater compatible receivers:
Note: Specifications subject to change without notice. Bose Corporation is not responsible for any inaccuracies due to manufacturer changes. Inclusion in this list does not indicate an endorsement by Bose Corporation. When in doubt contact the manufacturer of the equipment.

I have the list in a pdf document but do not see a way to attach it.
Contact me at danmc@uwyo.edu and I'll forward the pdf.
1-30-2009

Posted on Jan 30, 2009

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Regarding the comment above that says the Bose Active EQ will damage the processor. It won't damage electronics. It MAY damage conventional speakers that do not require it because it applies strong boosts at the frequency extremes.

The question of compatibility is muti-faceted. Most amps of any decent pedigree will work with 901's. The rub is when users want to use them in multichannel rigs. The Active EQ is an analog stereo device meant to be used ONLY with the 901's so steps need to be taken to ensure its processes don't get loose and affect anything else.

I wrote most of this for a different receiver, but if you account for minor differences to your receiver this will work just fine.

There's good news and bad news. The bad news you need a separate amp because a multichannel receiver with Bose 901's attached as recommended for a standard stereo receiver will only sound right in STEREO on stereo analog material. The other speakers around the room are not designed to receive its Active Equalization and if you engage your Tape Monitor you will NOT BE ABLE TO HEAR DIGITAL sources at all. Tape Monitor is for analog stereo material only and on modern AV receivers it disables any digital inputs so you really can't use the Tape Monitor circuit or attached devices for modern digital sources. However, you can still employ the various DSP options to spread 2-channel analog source material around the room. I do.

The good news. I have a setup similar to what you want to do and it works great!

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 Front L&R Outputs and the 901's amp channels. My receiver controls everything and just drives the Center and Surround speakers.

You could get by with just a stereo amp for the 901's. A Carver M-200 is a good efficient amplifier that would have you cooking just fine (2x100W). Run it with the Active EQ between the receiver Front L&R Pre-Outputs ** and the 901's amp channels.

** Front Pre Out (or one of your analog Tape Outs) >>> Bose EQ Amplifer IN, then
Bose EQ Amplier OUT >>> new amplifier IN.

Attach the 901's to the new amp, set its volume to Max and run through your receiver's speaker level setup.

Write off the Tape Out as an input if you use it to extract the Front L&R channels. DO NOT monitor it or you'll chop the 901's out of the signal path AND kill any digital source audio in the receiver.

Posted on Nov 30, 2009

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How to connect bose 901 VI to a harman AVR 347?

Posted on Oct 05, 2009

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I had the same problem ,Bose EQ will damage processor in AV receivers. I run mine off a seperate amplifier hooked up to the front pre-outs , that way i can adjust the volume w/the remote and use in surround mode with my Denon 5803 receiver and other standard speakers simultaniously.

Posted on Jan 07, 2009

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I have a 25 yr. old JVC that compliments the Bose 901 plus I have the Bose equalizer & together they are awesome. My JVC is going to be repaired on the power button & I have a Sherwood hooked up to them & I can't stand to listen to them. Got to get the oldie but goldie back & running.

Posted on Jan 06, 2011

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I my name Kevin I have a pair speaker Bose 901 seri 6. And I try a lot receiver any brand. And the sound not clear. Some body help me how can I find what receiver fix for my spspeaker.
Thank alot

Posted on Apr 17, 2014

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Assuming it is...

http://www.retrevo.com/support/Marantz-SR8200-Receivers-manual/id/511ci775/t/2/

Run the 901's with the Active EQ between the receiver Front L and R Pre-Outputs and the mono block amps, one chanel to each.

Pre Out Channel X >>> Bose EQ Amplifer IN, then Bose EQ Amplier OUT >>> Monoblock IN

http://community.klipsch.com/forums/storage/74/1341919/200w%20mono%2005.jpg

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Yes they will, I have a set on a denon receiver amp ( not sur of the model # its in another town). The main thing for bose 901's is that the equlizer has to be connected somewhere beteen the preamp and the main amp, most higher power amps have a switch that opens a set of patch cord jacks that the Eq. can be connected thru. So you should verify this feature with any amp you chose. With out the Eq connected the 901's have no bass or highend sound.

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I cannot connect my bose 901 series v1 active equalizer to my denon av surround receiver avr-891


Short answer from personal experience.

There is no way around this part. Get a separate power amp for the 901's if you want to use them in a multichannel way or alongside non-901 speakers.

The reason: You can't use the Active EQ (or ANY processor) in a tape Monitor loop with anything but 2-channel stereo material. As soon as you activate the loop you lose digital sources.

Adding to YOUR particular problem is that the Denon doesn't have a volume-controlled pre-out to feed that amp. If you want to deal with controlling the separate amp volume manually you COULD connect the Active EQ between DVR Out and the 901 amp IN but you would have a stereo mixdown instead of true front channel from the speakers.

Bummer.

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I have a Denon AVR 3805 receiver. It does not have a Main Amp in or a pre Amp out in the back. How do I properly hook up the Bose 901 equalizer to this receiver? I use the 901 speakers as surround...


By properly, you must mean WITH the Active EQ.

According to this picture, you're in luck BUT...

http://www.audioholics.com/reviews/receivers/denon-avr-3805/denon_AVR3805_rear_lg.jpg

(Short answer from personal experience.)

There is no way around this part. Get a separate power amp for the 901's if you want to use them in a multichannel way or alongside non-901 speakers. A good 100-wpc amp will do. (I like Carver)

Connect the Active EQ between the Front pre-outs and the amp input. Run speaker assignment, levels, etc and have fun.

Helpful Hint: If you don't have sufficient between-speaker room for proper reflection off the front wall you CAN turn the 901's around and you won't believe the amount of air these things push! I have actually felt it ten feet away after explosions or crashing ocean wave sounds. Now THAT is multi-media.

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I have just bought a new bose 901 speaker system which included equalizer. I am not sure how to connect the equalizer to my receiver Denon 3808. I need help.


http://products.bose.com/pdf/customer_service/owners/901_guide.pdf

Be advised, this speaker system requires its own dedicated two channels of signal preamplification and power amplification and the required Active EQ is not to be used in the signal path of anything else. I have them as my Main Left and Right Speakers in a 7.1 set-up, but I'm using a 5-channel external Carver Power Amp to drive them, a sSb and the Rear Surrounds. The Active EQ is between the Receiver's Main L&R Preamp Outputs and the two Carver Amp channels that drive the 901's. Don't think you can just add the 901's into your living room and enjoy multichannel sound. Search around fixya, I have written extensively on this subject.

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There is no direct connection between the 901's and their Active Equalizer. It is designed to be inserted between the source and the DEDICATED amplifier driving the speakers. Typically, this would be in a Tape Monitor loop on a receiver.

Tape Rec/Out to EQ In; EQ Out to Tape Play/In on the receiver. If you have a tape deck(s), it(they) would go into the back of the Bose EQ as if it was the receiver and you would use the Tape and 1/2 buttons for selection.

Or,if you have access to any other point that doesn't use the Tape Monitor, like a Pre Out/Main In jumper set, place the Equalizer there. That way it's always in front of the speakers and doesn't take up the Tape Mon.

Flip in the Tape Monitor and leave it on or the speakers will not receive the essential ACTIVE Equalization they require for proper frequency response. DO NOT place non-901's onto any amp using the Active EQ.

Like any speakers, the 901's will attach to the speaker terminals in the conventional manner.

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I bought a Denon AVR 3808 receiver. Bose says my speakers EQ is not compatable for this AVR. Is there a list of compatable receivers for these speakers...seems confusing...should I return the speakers or...


You might be faced with the age-old Bose issue of a 4-ohm speaker set. The ohm rating must be compatible. Most receivers drive 8-ohm speakers. If indeed they are incompatible, then it's up to you which component you want to replace (I don't recommend trying to find a converter to use the Bose speakers). The receiver sounds like it is new, so perhaps the speakers... or return the receiver and get one that can drive the Bose.

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and then set the delay for all speakers based on the distance to the amp.
this should result in better audio that that with the bose eq.
will work on the issue of using the eq. with the denon if you like. but, you will likely not improve on the sound with the denon set up correctly.
good luck
mark

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