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Discussion Starter · #1 ·
I have the 444ES, and I want to get Prologic 2 out of it. It's probably impossible, but I know Sony has a way to upgrade the preamp version of my receiver (9000ES - I don't know if they have ProLogic 2 for it though), and so, since I'm a hardware guy, I thought I'd see if I could upgrade my 444...
 
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