970 and 4 ohm speakers

Hi guys,

Haven't received the 970 yet but it seems from looking at the manual there's no way to set it for 4 or 8 ohm speakers. My current preamp, an old Onkyo 696, has a switch in the rear for either 4 or 8 ohms. I'll be using the 970 with the 7100 amp. Will the ohm type be automatic with my setup.

Thanks.

The 970 has no amplification built in. The external amps would see the speaker load instead.

Keta has hit the issue firmly on the head: the 970 is a pure processor, so the only component that directly sees the speakers is the Model 7100 amp. The amp does not include a selector for ohms because it is equally stable with 4 ohm speakers and 8 ohm speakers. Receivers that rely on the 8/4 ohm switch typically use it reduce the rail voltage in the 4 ohm position to prevent overheating when low impedance speakers incur a greater current flow. Separate amps lack the switch because they simply serve up the extra current.