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 6:12 pm #712 chungjhParticipant @cosmoman There are some VTL amps on Hifishark, from MB450 to 30 year old 225s. You hinted that VTLs are less reliable than Atma Sphere. In what way? I heard from an owner of 225s that he hadn’t had any troubles. Shipping these 100 mono’s back to the factory would be a hassle.