Reply To: Atma-Sphere MA1 3.2 vs Pass XA60.8 amp home › Forums › General Discussion › Atma-Sphere MA1 3.2 vs Pass XA60.8 amp › Reply To: Atma-Sphere MA1 3.2 vs Pass XA60.8 amp December 26, 2020 at 8:13 am #705 chungjhParticipant @rluciano and Louderspeaker 7, I am seriously considering PS BHK 300 mono’s. One comment that I heard was that it is lacking clarity in the high end. 1. do you think this is true? 2. Can this be remedied with tube rolling? 3. Why are there so many BHK300 on the used market?