I would have to say nay. I have owned a Yamaha receiver in the past, and I thought the DSP's for music and movies were pretty cool when I bought it. I used them for about a month and never turned them on again. They're nice to play with, and make nice ad copy, but they aren't really worth much. Especially with DPL II and DTS Neo around.

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"Whatever you do, you'll regret it" - Allen Mcleod Gray