Onkyo’s TX-SR3100 is one of the only sub-$500 receivers to include 3D audio decoding. It’s only a five-channel receiver, so you can’t do a full 5.1 surround-sound setup plus height speakers.

Soundbars might be all the rage, but home cinema enthusiasts who can accommodate a full-blown surround sound ... channel, ...

Aimed squarely at audiophiles, Onkyo says ... 200 watts per channel of power into 4-ohm speakers or 150 watts into 8-ohm speakers. It features a fa-less design to reduce noise and an “extrusion ...