Originally Posted by apw63
I'm trying to setup audio in two rooms of our home. I have a pioneer elite vsx-47tx receiver and for speaker a pair of bose 201 series III and a pair of monitor audio silver 5i bookshelf. From the documentation the speakers are both rated at 8 ohm. I have one pair on the A channel and the other on the B channel.
The AVR allows for a pair of 8ohm speakers to be attached to both the "A" and "B" terminals, so you don't need any additional impedance matching... But since your volume control has it - just set them to "1X".
The issue or confusion I'm having is the volume control jumper settings. The documentation I have on the ON Q volume controls part number 364769-01 indicates for one speaker pair the jumpers should be on the 1x position as in attached photo. This is for both input and output.
Actually that's for the "left" and "right" channels (both are inputs). But yes, 1X is the position you should use.
When I set the system up like this the receiver will self protect and shut down if the volume is turned up to the higher end. The time it takes to shutdown varies. The volume on the receiver itself.
This may be due to a stray speaker wire between terminals, either on the AVR end, speaker end, or at the volume control. Check all your connections for a potential short - you may be chasing that instead of an issue with the volume controls.
Best thing to do is isolate the problem - take the VC out of the equation and just connect the speakers directly (temporarily wire nuts) and make sure that works.
I measured the output and input sides with my fluke for ohm. The output side is only .2 ohm at 1x, if i put the jumper to 8x the ohm go up to 1. Should the output be 8 ohm no matter what? How do these jumpers need to be set? the input side ohm jump around anywhere from 5 to 11 ohm while playing audio.
It's impedance, not simple resistance... Your ohmmeter won't help here.
Are you just installing the volume control on the "B" speakers? Again, do the "B" speakers work fine without the volume control installed? Do you get the same behavior with the "A" speakers (with one or both pairs)?