I also have the XA30.5, and find it runs quite cool relative to my tube amp.
A couple of moderating factors: 1) It's in my main living area (about 900 sq. feet) so the heat it generates is not a problem. 2) My speakers (the Acoustic Zen Adagio's are an easy load for the amp at 6 ohms and 89 dB efficiency.
I will say that it generates less heat that my Audio Research VT-100 Mk II does. So if you're coming from another solid state amp, particularly a Class D amp, you will notice that it runs warm. However, if you are coming from a tube amp, however, you might find it runs cooler.
A couple of moderating factors: 1) It's in my main living area (about 900 sq. feet) so the heat it generates is not a problem. 2) My speakers (the Acoustic Zen Adagio's are an easy load for the amp at 6 ohms and 89 dB efficiency.
I will say that it generates less heat that my Audio Research VT-100 Mk II does. So if you're coming from another solid state amp, particularly a Class D amp, you will notice that it runs warm. However, if you are coming from a tube amp, however, you might find it runs cooler.