“Can I use my old onkyo speakers with this unit? My speakers are Onkyo SKB-540 with max 130W 8 impedance.”

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• Sure. Power specification that you see for speakers (measured in watts) is referring to how much power the speaker is designed to safely receive from an amplifier before it will start to distort. Onkyo rates their receivers at 6 ohms impedance [i guess to make them look better ]. At 8 ohms impedance the 180w/channel txnr 757 is actually making 127watts/channel. the txnr 646 rated at 170 watts/channel at 6 ohms but is making closer to 110 watts/channel at 8 ohms.

  Answered by drewntx 8 years ago

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• It looks like they should be fine to use them.

  Answered by imdigitalman 8 years ago

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