by GlassWolf » Tue May 03, 2005 12:21 pm
in my case I'm using analog outs from the 7990. if you use the alpine F#1status signal processor and amplifiers, you keep a purely digital 6 channel data path for doing 5.1 AC3.. the stand alone processor takes the digital input and splits it out to a 6 channel amp or multiple amps or whatever without any phase shift or propagation issues associated with analog signal processing. personally I don't want video in a car so 2 channel is fine for me. I'm also not using Alpine's signal processing so I don't worry about the signal path staying digital.
On the other hand, some units like the Orion Concept 97.2 EQ do offer TOSlink input for optical data path.. but it's not a common feature at this point.
when it does become more common, staying digital will reduce heat and signal loss, it'll eliminate noise and lower noise floor as a result, and reduce cable runs etc.. basically you could run power, remote, and a single thin optical cable and have everything done till you wire the speakers. It's just a simpler, cleaner approach, but to be ideal, you need to keep everything digital from the CD pickup to the amplifiers..
in my case I'm using analog outs from the 7990. if you use the alpine F#1status signal processor and amplifiers, you keep a purely digital 6 channel data path for doing 5.1 AC3.. the stand alone processor takes the digital input and splits it out to a 6 channel amp or multiple amps or whatever without any phase shift or propagation issues associated with analog signal processing. personally I don't want video in a car so 2 channel is fine for me. I'm also not using Alpine's signal processing so I don't worry about the signal path staying digital.
On the other hand, some units like the Orion Concept 97.2 EQ do offer TOSlink input for optical data path.. but it's not a common feature at this point.
when it does become more common, staying digital will reduce heat and signal loss, it'll eliminate noise and lower noise floor as a result, and reduce cable runs etc.. basically you could run power, remote, and a single thin optical cable and have everything done till you wire the speakers. It's just a simpler, cleaner approach, but to be ideal, you need to keep everything digital from the CD pickup to the amplifiers..