2. amps-preamps
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Does the impedance have to match?

I have a cheap all in one receiver/dvd. I want to upgrade the speakers that came with it. All the speakers that came with it are 3 ohms including the passive sub.
My question is do I have to change all the speakers to have the same impedance including the sub. Or could I just change the front and center speakers. It is connected to the tv in the livingroom. I only use it for watching football and movies. I have a 2ch set up in another room for music. My girlfriend likes the way it looks in the living room, so the receiver has to stay. I just want it to sound a little better without blowing it up.
tommy583

Showing 1 response by magfan

magfan
1,583 posts
 
In general, it is a good idea for speakers to 'match' in the sense of similar timbre or pitch response.
So, while technically it should be possible to run 8ohm speakers as fronts / center you may find yourself being able to point at them instead of simply disappearing as perhaps they should. Depending on your tolerance to this, you may be able to get away with a less than perfect match.
Also, Gregm's comment about sensitivity are well found. Doesn't appear you have much power here, so make the most of what you got!

Christmas is coming and 'upgrade fever' can strike at any time.
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