My buddy Rex owned a Pass J2 amp but switched to the Rossi LIO. Since then he bought the DAC SMT int. with the 36v PSU. The SMT is his favorite of all time. SMT was going to be put in his desktop system, but he made a mistake hooking up to his main system. It puts out about 40-50 wpc with the 36v PSU. Rex is now seriously thinking about trying this Burson Bang amp with the 20% off special. My friend maybe a little obsessive, but he loves this hobby.