Impedance selector confusion

[Discodeathgrip]

On the back of my receiver is an impedance selector with the following options literally written like the following:

Speaker set A or B: 4ohms min/speaker

Speaker set A + B: 8 ohms min/speaker

Speaker set A or B: 6 ohms min/speaker

The nominal impedance for my speakers is 8 ohms each. I'm a little confused about which to select, given the "or" and "+".

Seems like the only way to accomplish the 8 ohm/speaker objective is to plug one speaker into a left or right channel for set A, and the other speaker into a left or right channel on set B?

 

[BMXTRIX]

Since your speakers aren't 4 ohm speakers, you should set it to 6 ohms minimum. That will cover your 8 ohm speakers just fine.

If you had two PAIRS of speakers (4 speakers total) and ran them all at the same time, you would need 8 ohm speakers for all four speakers, but you only have one pair (2) speakers.

So, set it to the higher impedance and you are good to go.

 

[Discodeathgrip]

Awesome! Thanks. That's actually what I have it set at, luckily. I was dreading having to pull everything out and mess with it.

 

[lovinthehd]

It likely just is a limiter in any case. Here's an article on the subject http://www.audioholics.com/audio-amplifier/impedance-selector-switch-1