I'd say to each his/her opinions. But i think there got to be something wrong with the DP1 that Anaxilus listened. Either its has some problems in the source chain or the amp section is damage. The DP1 amp section is pretty good. Able to drive my D7000, DX1000 and Yamaha HP1 superbly. I only.have used the usb input and have not tried any other inputs. I would say the amp section is on par with my Little Dot mk6, only that the mk6 can drive the LCD-2 easily and the DP1 can not. All other phones the DP1 is superb.