有冇試過E部...US$3000. Its unique internal design features one 6SL7GC dual triode tube for each channel within the output stage to provide true analog sound. The output of the 5150 is rated at a comfortable 150 Watts-Per-Channel RMS with a THD (Total Harmonic Distortion) at less that 0.10%, which is excellent for an open-ended zero feedback design.