The fine folks at DW Music have just posted this great overview of the Orange Dual Dark 100 watt amp head. The Dual Dark series is Orange's highest-gain amp line to date, offering four stages of gain on two channels. Channel A is a completely new design with a voicing that reveals a fat and powerful EQ with strong open mids and a tight response, while Channel B takes its roots from the much loved Dark Terror, with a lightning fast attack perfect for percussive down-tuned riffing.

More info here.