I have onkyo av 576 and also have bose lifestyle 28 complete set but i want to connect onkyo av to bose mediacentre . will it damage anything. i dont know bose speakers impedance .

SOURCE: 8omh reciever and 6omh speaker

HI,in the speaker set up menu on your amp there should be a 6ohm setting but if not don,t worry as it won,t cause any problems.You will have to set the levels for your speakers so they match each other to keep sound right.

HOPE THIS HELPS.
CABLE GUY.

SOURCE: Can't connect subwoofer to onkyo av receiver

you would need a y jack to connect those to the receiver

SOURCE: I HAVE AN ONKYO TX

The symptom you described can be caused by any number of things. I always start with the output power transistors which are the first things to blow with a speaker output overload condition. Unplug the power cord to your unit, remove the top cover and use an ohmmeter to check resistance from C to E on all 10 of the power transistors (Q6050 thru 54 and Q6060 thru 64) attached to the large heat sink. Blown transistors typically read <1 ohm, compared to good transistors that are >10k ohms. If you find a bad transistor it will need to be replaced.

SOURCE: I have a Bose Accumass 6 system connected to an

You can purchase 50 watt, mono, 8ohm, "L" pads. One for each of the 4 speakers. Simply stated, this becomes a volume control for each of the remote speakers. Google "50w, 8ohm, L pad". Link:
http://www.scribd.com/doc/9197289/MCM-Speaker-Components-Catalog. Scroll down until you get to 'speaker components'. You will have to wire from the source to these pads which requires soldering. But it will solve your volume control problem.

SOURCE: Do all speakers need to have the same impedance? (Protect mode)

I have old model non HDMI AV Reciver model no TX-SR505 but I lost my remote controller.Now I am presently in India.How will get this type remote contoller