“Can my old Sony receiver model number HCD-C450 be replaced with this receiver and can I get the new speaker connects for the back of this one”

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• If I'm not mistaken the Sony HCD-C450 have 4 ohm speaker impedance and 3 ohms for the subwoofer. If thats the case the recommended ohms for this unit is 6-16 ohms. That said use with caution. maybe if you don't go to high with the volume. Otherwise you might blow the speakers.

  Answered by Anonymous 9 years ago

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• Hi Cesar, This Sony STR-DH550 will surely give you more options for speaker connection. We recommend visiting the link below to check available speaker terminals including other features and product functionality. https://docs.sony.com/release//STR-DH750_STR-DH550_guide_en.pdf «Jerome

  Answered by SonyListens 9 years ago

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