Hi Osirir
IME don't plug the Threshold 400A into any kind of power conditioner. I remember I plugged it into a 1.8Kva Isolation transformer & when I turned the 400A on the isolation transformers started humming even louder. After that it went straight into the wall.
Now I didn't leave it on all the time. Electricity by me is expensive. What I had to do to get the amp sounding right was leaving the amp on for 10-12 hours before a listening session. I would turn it on in the morning before work and when I got home after doing some chores in the evening I would start my listening session then. The music sounded real sweet.
IME don't plug the Threshold 400A into any kind of power conditioner. I remember I plugged it into a 1.8Kva Isolation transformer & when I turned the 400A on the isolation transformers started humming even louder. After that it went straight into the wall.
Now I didn't leave it on all the time. Electricity by me is expensive. What I had to do to get the amp sounding right was leaving the amp on for 10-12 hours before a listening session. I would turn it on in the morning before work and when I got home after doing some chores in the evening I would start my listening session then. The music sounded real sweet.