What is the best locxation for 901 series v1 - Bose 901 VI Main / Stereo Speaker

Hello Gregory, Here all the owner's manual for the 901 Series. Hope that will help. Good luck,
JP https://www.manualslib.com/manual/19582/Bose-901-Series-Vi.html#product-901
https://www.manualslib.com/manual/19598/Bose-901-Series-Ii.html https://www.manualslib.com/manual/19599/Bose-901-Series-Iii.html https://www.manualslib.com/manual/217957/Bose-901-Series-V.html
https://www.manualslib.com/manual/217958/Bose-901-Series-Iv.html https://www.manualslib.com/manual/217925/Bose-Lifestyle-901.html

The Bose 901's can handle up to 450w per speaker, using the Yamaha receiver, would not be MY first choice. Considering you invested in bose for a the quality of the brand, don't short change it like that with a lower powered receiver. NOT saying it won't do it, IT WILL, HOWEVER, if you really wanna see what those bose can do, get something more than the Yamaha RX. (110 watts)
Speakers like power, its best to run them at a minimum of 225watts. the closer you get to the 450w the better. 110watts is just too low, and can damage the bose. HECK, under powering ANY speaker can damage it QUICK!.

Depends on the shape and contents of the room. Look up "best acoustic placement of speakers" in your web browser. Good Luck!

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.

Not knowing anything about your specific amplifier or if it correctly configured for the 901 Active Eq, the first thing I would say is these are designed for analog stereo sources ONLY and a multichannel digital-capable receiver will NOT work properly with any devcie in a Tape loop.

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.

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

I'm partial to any old Carver amp. Some M-400 Cubes bridged to 400 WPC would blow the walls out for you. Or if you want to keep some semblance of peace and hearing ability, I'd just get a nice M-200 for them. I've had both set-ups and the M-200T is fine without being dangerous.

have you tried EBAY

I would recommend a high power 2-channel amplifier, minimum 16 guage speaker wire, and of course the Bose 901 active EQ that matches the series of your speakers. I use a Yamaha mx-830 power amp & cx-830 pre amp 170 wpc They (Bose) claim that they're unlimited power handling, But if you use a amplifier with to little power and overdrive it to make it louder, you could damage the speakers or amp. With my 170 watt class A amp,the 901 series 6 will blow wind across the room. Go with the best amp you can afford! best for money- Yamaha,Denon,Onkyo!

i, trying to hook up a powered subwoofer to my hafler dh 110 and dh 500 running a bose 901 series v active equalizer and series v 901s any info would be appreciated

Option 1: Adding a Separate Power Amplifier - Best Option

https://deercreekaudio.com/blogs-%26-updates/f/connecting-your-eq901-to-an-audio-video-receiver-avr

This option requires that you add a separate power amplifier.
1) Connect the pre-out main left and right to the EQ901 inputs 1 and 2, and the EQ901 outputs 1 and 2 to the power amplifier inputs left and right
2) Connect your 901 speaker to the power amplifier outputs
3) The equalized signal will now play through the front left and right speaker outputs in the stereo and home theater modes.