I can't seem to hook up my DVR and VCR.

Hey Any chance you have the Acoustimass 15 II or III? The first Acoustimass 15 has a switch. The II and II models turn off and on when it receives a signal from the source you are using. Amplifier, ect. All you need to do is make sure everything hooked up correctly and plug it in.

okay i think you may have a problem within your connections i dont think its internal like a bad component or something such as that but make sure your wires are in good condition and most important they are hooked up properly and that should take care of your problem

double check input used on amp and make sure u use the auto format decoder fuction on your amp ok if it has none than turn it on optical digital ok that should work for you :)

I too have purchased the same receiver and have the same speakers. Did you get a good solution to this problem and how does it sound?

The Bose systems are SYSTEMS for a very good reason. They're made for people who want good sound but don't want to manipulate the hardware much. The speakers and amps are designed for each other ONLY, not only electrically but through soundshaping to provide the smooth final result. The design is for you to feed the electronics a Line Level source and the magic and distribution happens internally. These are NOT mix 'n' match components. The special connectors are a clue. The Yamaha will probably blow them up if you manage to succeed with your plan.

Did bose make a Acoustimass 9 series

Sounds like interference getting in caused by your connecting cables. Suggest upgrading to higher quality ones.

you cannot hook a bose system up with any other system not even another bose

Typically, only stereo inputs exist on any comsumer-grade receiver, and the actual decoding to 3, 4, 5, 6, and even 7.1 is done internal in the receiver. When a "placement" signal is detected by the receiver, the sound is routed to the correct speaker.Please refer to a user manual
..accordianman

You will need a Component Video Cable
Connect the Red Green and Blue Connections from the TV to the Bose.

if your audio is coming from the TV, also connect stereo audio from the TV's audio out to the "TV" input on the bose.

if you want to hook up other devices (VCR, BluRay, etc) the video will go directly to the TV and audio will go directly to the Bose