Originally posted by: nourdmrolNMT1
Originally posted by: Apex
Digital amplifiers are typically far more efficient than analog, and this one is no exception. That's why there's no need for the extra power wire, and why they were able to get that kind of power out of a unit of that chassis size.
that they are, however i would still like to see the fuse rating and see how much they exagerated the RMS on this HU since all the others are exaggerated by a good amount.
also, i think im gunna be pming you a few questions apex.
MIKE
That is a good question. I doubt anyone's tested it yet. However, Panasonic's digital line (not their analog) of HT receivers are pretty spot on, with upwards of 5 channels driven:
Panasonic SA-XR25, rated at 100w per channel at 6 ohm (roughly 80w per channel into 8 ohm)
Tested to clipping: 82w per channel at 8 ohm, 5 channels driven
That's pretty amazing considering the size and price. Some of the most respected names in HT can't do that. For instance, Marantz's SR7200 is rated at 105w per channel into 8 ohm, yet tested to only 29w with 5 channels driven.
Of course, this may not translate directly over for car applications. However, TriPath does make some nice stuff. I'm guessing this Panasonic uses the Tripath TA2041 (though I could be wrong). It's fully 86% efficient to 70w at 4 ohm.
http://www.tripath.com/downloads/TA2041.pdf