You may try one of the digital amps - they will drive the power hungry ATCs with ease. Their smoothness will complemet them nicely, too.
JRDG 201 is nice, but too expensive compared to other ICE based amps out there (H2O for example), IMO. Bel Canto eVo series amps are also worth considering.
JRDG 201 is nice, but too expensive compared to other ICE based amps out there (H2O for example), IMO. Bel Canto eVo series amps are also worth considering.