I like the sound quality of the amp. It tends to hum a bit. I would like to send it to SP for a third input and to reduce sensitivity. But I hesitate given all of the negative feedback Mikhail has been receiving. I have send the amp back to him in the past, maybe a year ago or so. He took a...

I recently purchased a MP3X Singlepower Slam SE and I wanted to see if it would be powerful enough for AKG K1000 (which I'm looking to buy). Right now, I have Sennheiser 580s, but they seem to be broken (loose wire on the headset...I have to jingle it sometimes to make it work...very...