Question about Bose 901 VI Main / Stereo Speaker

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Connect Bose 901 eq to Denon avr 2807

Have purchased a set of 901's that i want to connect to my Denon AVR 2807 7.1 reciever. It has a pre out for all speakers but does not have a main amp in connection.
Am sure there is a solution but can't find one.

Thanks

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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 Tape Monitor with any type of stereo-only sound processor (non-Bose EQ, dbx expander, etc) and the various DSP options to spread 2-channel analog source material around the room. I have a whole stack of analog processors, tape and CD recorders slaved to my single Tape Monitor and then into a dbx400x Program Route Selector. It not only expands my Tape Monitor to handle nearly unlimited external devices but it makes routing for listening or recording easy with simple pushbuttons. But I digress...

The good news. I have a setup similar to what you want to do and it works great! With one caveat - My receiver actually has 5.1 analog Outputs (probably like yours) so I can drive up to 6 external amplifiers if I want to (I drive 4).

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 L&R Pre Out >>> 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.


Posted on Jun 19, 2009

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In any question regarding connections the exact models of all parts in the scenario should be defined.

"Pioneer amplifier" is not unique nor revealing. Integrated amplifer? Power amp? Tape Loops available? Pre-Outs? What's involved as a preamp?

The key thing to know is that any amplifier channels driving 901's must not drive other speakers as the Active EQ severely modifies the Line Level source input. If the EQ (or any sound processor) is used in a Tape Loop on a modern multichannel digital-audio-capable AVR, ONLY 2-channel analog sources will function when the Tape Loop is engaged; and all downstream speakers will be affected by the processing. That's par for the AVR course.

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I have a setup similar to what I think you're trying to do and it works great!


You're in luck because you have a full complement of pre-outs. You'll need a separate amp for the 901's.


First some background.


The use of 901's Active EQ (or any external proxcessor) in any digital AV receiver setup for anything EXCEPT STEREO listening through the 901's alone requires you to have a separate amplifier for them and to avoid having to use a Tape Monitor which could introduce proprietary and potentially damaging Active Equalization back into anything in the AV Receiver with its conventional speakers.


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Run it with the Active EQ between the receiver Front L and 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.


The AV Receiver can still drive the Center, Surrounds and the Sub(s) as it is designed. This is how mine is wired.


Then set the new amp's volume control (if it has one, mine doesn't) to something HIGH and leave it alone. Run through your speaker setup routines on the AVR. After levels and distances are set the AVR will be the boss of the 901's. With 901's don't even need subwoofers but they don't hurt. If you do have subs I recommend sharing the LFE with the 901's.


I've done this in my own setup once. Turn the 901's around so the rear faces point into the listening area. Crank up a movie like Master and Commander and when the waves are crashing or cannon are firing you WILL FEEL A BREEZE from them. Now THAT is multi-media! I advise having the 901's share LFE with any subwoofers you might have.


http://www.retrevo.com/support/Harman-Kardon-AVR-230-Receivers-manual/id/386bh145/t/2/



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

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