Question about Bose 901 VI Main / Stereo Speaker

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I have my bose v1 equalizer connected to my 3375 harmon kardon the following way.....equalizer(line output..to receiver tape monitor in) and equalizer (line in....to reciever tape rec output ....i am not getting a response, am i missing another function.thanks for an early reply.

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I bet it would work if you listened to something 2-channel and analog. THAT is the limitation of anything that uses a proccessor (like the 901's) and modern AVR's.

Multichannel AVR's automatically disconnect digital inputs when a tape loop is activated.

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 3375 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 place some RCA Y-splitter cables where the Pre/Main jumers are and send a stereo mixdown instead of true front channel to the Active EQ and thence to a separate amp, but it's not true front channel. But you would have local control of the 901 volume after you calibrate them to match whatever other speakers you use.

When did they stop making AVR's with 7.1 pre-outs? My 9-year old Pioneer has them and I have 901's, 301's and a sub going.

Posted on Apr 28, 2011

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Recently I bought a Harman Kardon HK 3770 Stereo receiver. My question is " can I use a Bose 901 Series VI speaker with this receiver?, since I plan to buy a 901 S VI speaker.. The receiver has no tape...


From the description of the Harmon Kardon, it sounds like you should be able to use the speakers, but you will not be able to use the active equalizer. The equalizer is designed to be cabled into the tape monitoring loop and allows you to listen to the equalized signal coming back into the receiver. Attach the +/- speaker wires to the right and left channel speaker connectors on your receiver.

Jan 15, 2015 | Bose Audio Players & Recorders

1 Answer

How to connect my eq to my harman kardon recevier model avr-247


The following is some boilerplate I made up that should explain some usage limitations.


Be advised that the engagement of any device in a Tape Monitor loop on a late-model Audio/Video Receiver will effectively tie the receiver down to stereo-only analog sound reproduction. I'll explain.


The connections themselves are fairly simple but it pays to understand what happens in the loop.


In general, any Line-Level external processor (EQ, dynamic range expander, etc) will go into a Tape Monitor loop on a receiver. A Tape Monitor, when engaged, sends the stereo analog signal Out to the Processor, massages it and returns it to the receiver via the Tape Monitor IN connectors to be passed on to the receiver's internal processes (volume, tone, whatever).


Old school analog stereo-only receivers consistently work this way. Newer digital and audio/video receivers introduce a couple of problems: 1) digital sound processing to simulate a variety of soundfields; 2) multiple output channels, either discrete or digitally-generated.


The latter requires that whatever signal is being processed experiences a maximum of one analog-digital-analog conversion.


EVERYTHING analog coming into the modern digital receiver is automatically converted to a digital signal for internal processing unless you choose a STEREO-only or STEREO-Direct setting. Consequently, no further external analog-digital conversions would be allowed if, say, a Tape Monitor circuit was activated, and a possible feedback loop could otherwise be created in a digital-sourced selection (output to its own input), so the unit is wired to treat the Tape Monitor as the first analog step in the process and defeats any pure digital sources.


In a multichannel unit, what would happen to the other channels if you sent ONLY the Front Left & Right out for processing? They would NOT be processed. That logical problem also plays into the decision to defeat digital sources if the Tape Monitor is activated. I don't totally agree with the engineers but that's the way it is. Nature of the digital beast.


Okay, back to the hook-up:


Any of the following audio connections on the HK will work: Tape, Vid1 or Vid 2.


Receiver Tape Out (Rec) - to the External Processor (EQ, whatever) Preamp-, Rec, Line-In;


Receiver Tape In (Play) - from the External Processor (EQ, whatever) Preamp-, Play , Line-Out.


So, to sum up, you can only use the EQ or any outboard processor for analog stereo sources. If you actually want to use an analog recording deck you could place it within the typical Equalizer

Feb 04, 2011 | Harman Kardon Audio Players & Recorders

1 Answer

Amp out and amp in for bose eq.hook up


  • 1

    Examine your receiver to be sure it has a tape monitor loop. Receivers with a tape monitor loop will have a button or switch on the front for "Tape Monitor," and have two sets of RCA connections on the back, one labelled "Tape In," and the other "Tape Out."

  • 2

    Take the two cables that are provided with the 901 speakers and insert one end of the first cable into the "Amplifier Input" jacks of the equalizer. Connect the red connector to the R input and the other connector to the L input. Connect the other end of this cable into the "Tape Out" connections on the receiver. Again, hook red to R and the other to L.

  • 3

    Connect the second cable between the "Amplifier Output" jacks of the 901 receiver and the "Tape In" connections on the receiver. Follow the guidelines in Step 2 for R and L connections.

  • 4

    Plug the 901 equalizer into a 120-volt electrical outlet. Your 901 equalizer is now installed.



  • Read more: How to Install a Bose 901 Equalizer ' eHow.com http://www.ehow.com/how_4813156_install-bose-equalizer.html#ixzz19vfsJTQu

    Jan 03, 2011 | Bose Audio Players & Recorders

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    I have a Yamaha RX-V992 receiver and I would like to install a Bose 901 active equalizer Where will I connect this to my receiver? Thanks Mark


    Basically here are the connections you have to do:
    6eb692f.jpg
    In case you don't have tape recorder forget the "box" named tape recorder. Your RX-V992 is the box named receiver or preamplifier. You have to connect with RCA - RCA cables the tape out from the RV-X992 to Bose input, and the Bose output to tape in at RV-X992. With the setup connected like this whenever you choose from the RV-X "tape monitor" you will hear the sound equalized from Bose; if you disable the "tape monitor" switch you will hear without any equalization.

    In case of a problem or clarification, don't hesitate to post me a reply.
    If you are satisfied, rate my solution with the "thumbs".

    Thanks and regards
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    May 09, 2010 | Audio Players & Recorders

    1 Answer

    How to connect jacks from gemini stereo graphic equalizer eq2010 to harmon kardon avr40


    I couldn't find the manual for this receiver, so you may have to adjust some of the terminology below to the labels used on the HK.

    Be advised that the engagement of any device in a Tape Monitor loop will effectively tie the receiver down to stereo-only analog sound reproduction. I'll explain.

    The connections themselves are fairly simple but it pays to understand what happens in the loop.

    In general, any Line-Level external processor (EQ, dynamic range expander, etc) will go into a Tape Monitor loop on a receiver. A Tape Monitor, when engaged, sends the stereo analog signal Out to the Processor, massages it and returns it to the receiver via the Tape Monitor IN connectors to be passed on to the receiver's internal processes (volume, tone, whatever).

    Old school analog stereo-only receivers consistently work this way. Newer digital and audio/video receivers introduce a couple of problems: 1) digital sound processing to simulate a variety of soundfields; 2) multiple output channels, either discrete or digitally-generated.

    The latter requires that whatever signal is being processed experiences a maximum of one analog-digital-analog conversion.

    EVERYTHING analog coming into the modern digital receiver is automatically converted to a digital signal for internal processing unless you choose a STEREO-only or STEREO-Direct setting. Consequently, no further external analog-digital conversions would be allowed if, say, a Tape Monitor circuit was activated, and a possible feedback loop could otherwise be created in a digital-sourced selection (output to its own input), so the unit is wired to treat the Tape Mon as the first analog step in the process and defeats any pure digital sources.

    In a multichannel unit, what would happen to the other channels if you sent ONLY the Front Left & Right out for processing? That logical problem also plays into the decision to defeat digital sources if the Tape Mon is activated. I don't totally agree with the engineers but that's the way it is. Nature of the digital beast.

    Okay, back to the hook-up: Receiver Tape- or VCR Out to the External Processor (EQ, whatever) Preamp-, Amp-, Tape- or Rec-In; Receiver Tape- or VCR In from the External Processor (EQ, whatever) Preamp-, Amp-, Tape- or Rec-Out.

    If you actually want to use an analog recording deck you could place it within the typical Equalizer's own Tape Monitor loop(s). Many have two to facilitate equalized dubbing between decks.

    Apr 11, 2010 | Gemini Sound Products EQ-300 Home...

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    Bose 901 series speakers to Bose 901 Equalizer


    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.

    Apr 12, 2009 | Bose 901 VI Main / Stereo Speaker

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    Connecting Bose 901 series iv to Harman Kardon AVR 254


    Most HK av receivers have pre amp out,power amp in with metal jumpers connecting them for the main or front channels. that would be the best place to hook up the EQ on a AV receiver. If your receiver doesn't have pre out, power in jacks , you can use tape monitor .record out playback in. The tape monitor option is best for stereo use , as the active EQ will charge all speakers in tape mode, possibly damaging other speakers.I run my 901 s with a seperate pre-amp,power-amp hooked up to my Denon AV receiver that way i can run in surround w/standard speakers

    Jan 06, 2009 | Bose 901 VI Main / Stereo Speaker

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    Connect Bose 901 VI EQ to a Harmon Kardon AVR 247 Amp


    Similar problem...I came up with a solution with help from Onyko. For my receiver, at least, the bottom line was that the output from the equalizer MUST go to 'Receiver, Tape In'! Since that is the ONLY input source from the equalizer, you must combine elsewhere. Part of my setup included the Radio Shack Audio/Video Selector box which costs $21.99...you might not need it, but in my case, I couldn't plug all components into the back of the receiver and have them go through the equalizer.

    Since I have a satellite receiver, DVD player and TV, that I want to route through the equalizer, here is the way mine is set up and working:

    Satellite receiver and DVD player out to Radio Shack audio/video selector

    Audio/video selector out to VCR in.

    VCR video directly to TV

    VCR audio red/white (audio) out to equalizer

    Equalizer out to Receiver Tape IN (Receiver Out not used)

    Hope this (or a variation of it) helps.

    Nov 17, 2008 | Bose 901 VI Main / Stereo Speaker

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    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

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    Bose 901 Equalizer connections to Harman Kardon AVR520


    I wrote 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! With one caveat - My receiver actually has 5.1 analog Outputs so I can drive up to 6 external amplifiers if I want to (I drive 4). IF yours does NOT (*) we have to be creative in extracting the front two channels from your multi-channel receiver. The obvious alternative place would be at one of the few OUTputs on the back, assuming you have one free to use.

    If your receiver has Pre Audio OUTS so I'm betting your receiver does, too.

    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 VCR or Tape Out if you don't have Pre 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.

    *** If you use a Tape or VCR Out you will NOT be able to SELECT the source you use for the 901 Pre-Outs for listening, or else the 901's will not get any sound sent their way. DO NOT USE the monitor switch for that source.

    Aug 04, 2008 | Bose 901 VI Main / Stereo Speaker

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