Dodge Challenger 2012 Owner's Manual page 247

The 12 Channel Class D GreenEdge high efficiency
amplifier is governed by a high voltage tracking power
supply and drives a 7.4-channel playback architecture.
The Harman Kardon audio system offers the ability to
choose Logic 7 surround sound for any audio source. The
GreenEdge high-efficiency speaker designs ensure the
system has higher SPL and a dramatic increase in dy-
namic sound quality. The speakers are tuned for maxi-
mum efficiency and perfectly matched to the amplifier
output stage ensuring state of the art multi-seat surround
sound processing.
Logic7 multichannel surround-sound technology deliv-
ers an immersive, accurate sound-stage to every seating
position This surround effect is available for audio from
any source - AM/FM/CD/ Satellite Radio or dashboard
AUX input; and is activated through the Electronic
UNDERSTANDING YOUR INSTRUMENT PANEL 245
Vehicle Information Center (EVIC). Refer to "Driver-
Selectable Surround Sound (DSS)" under "Electronic
Vehicle Information Center (EVIC)" in "Understanding
Your Instrument Panel".
Selecting "Surround Sound" through the DSS modes
activates the Harman Kardon
surround-sound technology in your vehicle. Some audio
will sound better in DSS modes, others in Stereo mode.
When in "Surround Sound" mode, balance is set auto-
matically. Fader control is available in surround mode
but should be set to the center position for optimal
surround performance.
Logic7 multichannel
4