Hi Kops, the amp has a damping factor of 6ooo which controls the speaker with a vise like grip.The power does double as the impedance drops and it has a bandwith of 1hz-300,000hz which is the same as the Boulder amps ( the whole Karan line uses the same front end circuit).The slew rate is unknown but I can tell you that it delivers a whole slew of music!The amp does weigh in at a 130lbs and is dc coupled with bipolar outputs (Sankens)and is using a myriad of German parts(trannies @960kvaand caps and heat sinks).It runs very coool to the touch and since my speakers are 6 ohms they are pulling a 400 watts out of the amp (possible 500 watts peak).It does have a beutiful double aluminum face plate with a tactfully done Karan logo.