Originally Posted by SilverStar07
I have a question for you Paul, that you might be able to help with. I am looking at upgrading my speakers and some of the speakers I have been looking at are rated at 6 ohms. My current reciever a Pioneer non-Elite, (not the greatest but I can't afford to upgrade that as well right now) standard is 8 ohms but it can be switched to 6 ohms per the manual. Now here in lies my question not all the speakers in the package are rated at 6 only the front 3, the surrounds are rated at 8 ohms. My thought is it is better to have the reciever set to 6 ohms for the fronts and have the rears run at that. Is this a good solution or should I try to find speakers with the the same ohm rating?
I'm not Paul, but I will answer. Even if all the speakers were 6ohm speakers it would be best to run the receiver at the 8ohm setting if it can handle it. Setting the receiver to the 6ohm setting throttles it back. Obviously, if it doesn't like being run at the 8ohm setting, then you will need to run it with the 6ohm setting.
Bear in mind that the 6ohm setting doesn't make the receiver run at 6ohms. That is not how receivers operate. The speakers dictate the impedance that the receiver is feeding. So, whether you use an 8ohm setting or the 6ohm setting, 6ohm speakers will present a 6ohm impedance to the receiver and that is what it will try and feed.
No guarantees, and I am not responsible for any damage, but most likely all that will happen if you leave the receiver set to 8ohms and drive the 6ohm speakers is that it will either be fine and run a little bit hotter than normal, or it will go into some sort of "protect mode", especially at higher volumes or after an extended period of use. If it trips into the "protect mode", then you may need to use the 6ohm setting. But many receivers that are not rated for it can drive 4ohm speakers with no issues. I suspect that your receiver will be fine without having to use the 6ohm setting.