He had bought a 2nd hand (almost new) Auditor, which sounded fine (except high distortion sounds when switching on/off or when pluggin in/out). But soon his cans died, so he sent it to SPL for repair. They officially stated the amp wasn't faulty, but nevertheless sent him a brand new as exchange. That 2nd one worked fine for a couple of weeks, then the HP started to die again (a T1 was also victim BTW). He sent it again to SPL, they said, one Opamp was defective, and they stated that is was a user fault - to slow plugging in and out with too long resulting short circuits.
Normal amps have protective measures for that case, but SPL is
audiophile, they state it sounds better without...
They sent him a 3rd one, which he sold directly.