How come you don't often hear about a 3.0 setup ?

[whoaru99]

As has been mentioned, use the 5.1 surround setting on your receiver but configure it for the speakers you have. .

Hopefully, I'm not being to pedantic here but there isn't a 5.1 setting per se. If the incoming stream has Dolby Digital content the receiver should automatically change to Dolby Digital decoding (if connected by digital-capable connection - coaxial, Toslink, HDMI). Then, the system just plays back in the manner configured for the speakers.

You can, however, select Dolby Pro Logic II to matrix out multichannel from something like a stereo input whether analog or digital. Also, it would, if you had the speakers so configured, create 6.1 or 7.1 sound from say a native Dolby Digital 5.1 stream. The original channels are unchanged, the information in the matrixed channels somes from the original material.

 

[HTHMAN]

Hopefully, I'm not being to pedantic here but there isn't a 5.1 setting per se. If the incoming stream has Dolby Digital content the receiver should automatically change to Dolby Digital decoding (if connected by digital-capable connection - coaxial, Toslink, HDMI). Then, the system just plays back in the manner configured for the speakers.
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Pretty much what I was trying to convey. I was not sure if he was using a 2-channel mode on his receiver and did not know how the receiver would handle that. If he just configures the receiver for the speakers he has, all should be fine. Not being there, all we can do is guess as to why the sound is not what he was expecting and try suggestions that may or may not help. I personally use a full compliment of speaker in my surround systems and for my 2-channel music I use my vintage stuff so I do not have the same problem he has.