Features to look for:
Surround sound decoding. All modern A/V receivers will decode Dolby Digital
and Dolby Pro Logic signals. You should also look for dts decoding. If you're a
home theater enthusiast, you may also want the full laundry list of decoding systems.
32-bit decoding. While many decoders operate with 24 bits of precision, some go
the extra step to 32 bit decoding. This is on par with professional movie theater
decoders. It delivers higher precision and lower noise.
Digital Cinema Sound™ processing is a Sony system that accommodates the
differences between your home theater setup and an actual movie theater. Digital
Cinema Sound processing recreates the actual, measured acoustics of three
Hollywood dubbing stages. These are reference-class movie theaters where directors
go to adjust and approve their final sound tracks. Thanks to the Digital Cinema
Sound modes, you'll hear exactly what the director intended!
The acoustics of this Hollywood dubbing stage are incorporated
in Sony's Digital Cinema Sound circuitry. Note the swivel chairs
and sound mixing console in the foreground. This is not just a
movie theater. It's a reference-class movie theater where
directors go to adjust and approve their movie sound tracks!
Surround sound for music. Selected Sony Digital Cinema Sound™ circuits also
recreate the acoustic space of two legendary concert venues: the Vienna
Musikvereinsaal and the Amsterdam Concertgebouw. So you experience music with
the acoustics of a real concert hall.
The Sony Guide to Home Theater