I don't think AR has a Pre5dsp. There are a Pre 2dsp and a Pre5 and both of them are separate model. Both support direct 5.1 input for SACD or DVD-A.
You can check last month Stereophile issue (May 2004) for a review of the Pre5 which was pretty possitive. This is a direct quote from the review "The sound was decidely punchy and impresive but untiring -- sort of like putting a tube preamp into the system. The Pre5 added an excitement to the sound that often made me want to dance... Bass has heft and definition, the midrange was nicely balanced and detailed, and the highs were enven and open..."
As for the Pre 2dsp, there is an on-line review from Stereophile for Guide to Home Theater you can search from Yahoo.
I personally have a Pre 2dsp and it sounds wonderful. The only draw back is that it doesn't have as much features as other processosr at the same price but as far as sound quality, it equals model costing three times as much.
You can check last month Stereophile issue (May 2004) for a review of the Pre5 which was pretty possitive. This is a direct quote from the review "The sound was decidely punchy and impresive but untiring -- sort of like putting a tube preamp into the system. The Pre5 added an excitement to the sound that often made me want to dance... Bass has heft and definition, the midrange was nicely balanced and detailed, and the highs were enven and open..."
As for the Pre 2dsp, there is an on-line review from Stereophile for Guide to Home Theater you can search from Yahoo.
I personally have a Pre 2dsp and it sounds wonderful. The only draw back is that it doesn't have as much features as other processosr at the same price but as far as sound quality, it equals model costing three times as much.