IAmTodd said:
And why would you need a 48 Volt system? Seems to me 12 works just fine. I can't see this really happening anytime in the next 10 years unless this would be implemented into an electric car. Which I still don't see a purpose.
Why do we NEED anything? We don't.. but the point is that with a 42V (Not 48V) system, alot of the more common 'necessities' of automobiles today become alot more reliable, cheaper to impliment, capable than on a 12V system. Think of head units that can put out 100W RMS of real power per channel very inexpensively. Even though the best amps use current as the focus, the voltage does and will always play a factor.
The other advantage of 42V systems are the cheaper wires required for the setup of the vehicle. Much of the big-guage stuff won't be needed anymore. Different batteries come into play and different combinations of every type of electronics setup change how the manufacturers will be able build the vehicles. It's just the next step in automotive technology and I see it starting within 3-5 years. Here's some literature on the 42V future:
http://www.sae.org/42volt/products/. Personally, I'm looking forward to it and I think it's a long time overdue... (Think of the small packages new audio equipment will be available in! Muahahaha! With stealth as my main design factor, this will help alot.)
As for the Panasonic unit, I still haven't had one to put on a scope myself, but a few colleagues have mentioned that they seem to be getting varying results from unit to unit. None of them think it performs like a 60W unit, more like a 30-35W unit. And that's right about where most of them are scoping out the non-clipping signals. So it potentially has more power than the Mosfet-60 V-Drive Alpines out there (and yea it does require 10 AWG wiring kit just like the Alpine high-current versions (9813/15, 9833/35 (26W)) but so far we think the Alpines have a much better sound. I think the panny is designed as a voltage based amplifier (something JBL likes to do) instead of a current based amplifier. This allows for more potential power but the power isn't as effective as that made with current modifications instead.
But the panny is a nice option out there for those who don't want the Alpines but also don't want an external amp and do want a fair amount of power in their system. (Ok.. for the price... who wouldn't want the Alpines... But hey.. some people just don't like Alpine... I guess...) Either way, it's nice to have competition for a market segmet (high power head unit) reguardless of who it is...