No no. One 9011 not better. It just adds amplifier sections. My second power cords are not even connected. The review in absolute sound was garbage. 9011s give you more impact with the extra amplifiers on but cause more distortion, it's audible. I tried different amps. From ARC to Halcro and to my ears 90 series sounded better. I effectively am using two 9008's without the extra amps turned on and I much prefer it. I have a pretty big room too. So unless u r a total headbanger stick with 9008's IMHO.
Cheers!
Cheers!