adding IM speaker VC has affected my other speakers

[ed ab]

I have 2 sets of 8 ohm speakers on my system with each set connected to the A and B speaker selection connections on my JVC RX-301 receiver. I've recently added am impedance matching volume control to one set of the speakers. I placed the jumper on the VC on the 2x setting. The problem I'm having is that with both sets of speakers on the ones with the VC work fine but the others are very low. If I turn off the VC speakers the others work fine so something with the VC is affecting the other speakers. I've tried other jumper settings on the VC but none seem to have any affect or correct the problem.

Anyone know whats going on here or how to correct this? Thanks

 

[mike c]

the easy way out would be to add another IM VC to the other set of speakers that's what i would do ...

is there no 1x setting on the VC? you really don't need an IM VC unless your receiver doesn't have enough juice for a 4 ohm load

i think (wild guess) what's happening is that:
since the VC'ed speakers are now 16 ohms, they need less of the volume knob up ... still weird, but that's the best i can do

 

[ed ab]

I thought of adding VC to the other speakers but I don't really need it.

The VC does have a 1x setting but the instructions say to use 2x. I've tried 1x, 2x and 4x. All have no change in affect.

Still puzzled.

Thanks anyway

 

[mike c]

without the VC in the loop, will the receiver play BOTH pairs of speakers at the same time?

 

[ed ab]

Yes - at least they did before I added the VC.

I just called Phoenix Gold. He suggested taking the jumper off altogether...although he wasn't sure that would work.