More will chime in here but I believe you will want the 7100 amp at the top or the area that will allow those vents to...well VENT the most...I know, you saw the pictures as did I of the 950 on top of the 7100 and said...I can do that...well, with heat the enemy of electronics...give that 7100 breathing room...(I don't have mine set up in a rack yet...got mine in January!)
Bill
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Outlaw 1070***3 Klipsch Heresy ll Mains**Klipsch KLF-C7 Center***Klipsch KSP-S6 Rears***Oppo BDP-83***Outlaw LFM-1 Plus***
Nakamichi TA-3A Stereo Tuner Amp***Klipsch RB-5s***Outlaw Audio M8***

...Let the Movies and Music Play...