The ASR uses Mosfets, and this "could" be an indication of limited current drive as tested by Stereophile. Doing 285w into 8ohms then only 128w into 4ohms.
" The bottom trace was taken with both channels driven into 8 ohms; it stops at 285W (24.5dBW), which is where the amplifier shut down, not where it clipped. Subsequently tested with both channels driven into 4 ohms (middle trace), the ASR shut off at 128W."
Cheers George
" The bottom trace was taken with both channels driven into 8 ohms; it stops at 285W (24.5dBW), which is where the amplifier shut down, not where it clipped. Subsequently tested with both channels driven into 4 ohms (middle trace), the ASR shut off at 128W."
Cheers George