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New here, first post.

#1
Rating: 0
11/30/08 at 2:17pm
  • Joined: November 2008
  • Post Count: 2
Greetings,

My girlfriend bought be this Yamaha - 5.1-Channel Home Theater Speaker System - NS-SP7800PN for a Christmas present.

The specs say the speakers are all 6 ohms, but the Yamaha receivers such as Yamaha - 550W 5.1-Ch. A/V Home Theater Receiver - RX-V463BL are 105w x 5 at 8 ohms.

Why would the same company list specs for 6 ohms on speakers but 8 ohms for the receiver/amps?

Will that receiver work ok with those speakers?

What is 105w at 8 ohms when presented with a 6 ohm load?

Recommend a different receiver? Price range $200-400

Thanks in advance.
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#2
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12/20/08 at 9:50am
  • Joined: November 2008
  • Post Count: 2

Re: New here, first post.

Bump. Still shopping for a reciever.
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#3
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12/20/08 at 1:15pm
  • Joined: December 2007
  • Location: Canton MA
  • Post Count: 35

Re: New here, first post.

It will work fine. Companies generally rate the output at 8ohm because that is what most speakers nominally run at, but most are able to handle a 6ohm load, it just may have to work a bit harder. If you notice it going into protect mode at normal volumes then you should be concerned, but it should work fine. Enjoy the new system!

Edit: Actually, I just downloaded the manual for your receiver, and there is an impedance setting (which supports 6ohm speakers). You should be safe...

Electronics: Receiver: Onkyo TX-SR502 | CD Player: Marantz CD5003 | DVD Player: Onkyo DV-SP404

Speakers: Mains: Cambridge Soundworks Newton M80 | Center: Cambridge Soundworks Newton MC400 | Surrounds: Cambridge Soundworks Newton S200 | Sub: Cambridge Soundworks Newton II P205

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