There is no issue with the load imposed by the 150s in this amp. The manufacturer endorses after it did significant testing before doing so.
The power transforners on this amp are massive. That’s why it weighs 60 plus lbs.
With respect to room heating, I live in Chicago so we see all sorts of temperatures from 10 below to 95 to 00 every year. Smaller EL 34 Tubes in their substitutes do not cause too much significant heating in the summer months. But it is definitely noticeable. I went the route of buying a class D amplifier last summer and moving the prima Luna to the basement.
Let me just say that after six months, I sold the class D amplifier and brought the prima Luna back up. I don’t know when I’m going to do this summer. The sound is to to die for so I’m just not sure. I might not care s out the heat. Or, I’ll buy a nice used integrated.
I didn’t have the opportunity to audition all different makes of class D amps. But the one that I did evaluate was not able to impress me long-term.
The power transforners on this amp are massive. That’s why it weighs 60 plus lbs.
With respect to room heating, I live in Chicago so we see all sorts of temperatures from 10 below to 95 to 00 every year. Smaller EL 34 Tubes in their substitutes do not cause too much significant heating in the summer months. But it is definitely noticeable. I went the route of buying a class D amplifier last summer and moving the prima Luna to the basement.
Let me just say that after six months, I sold the class D amplifier and brought the prima Luna back up. I don’t know when I’m going to do this summer. The sound is to to die for so I’m just not sure. I might not care s out the heat. Or, I’ll buy a nice used integrated.
I didn’t have the opportunity to audition all different makes of class D amps. But the one that I did evaluate was not able to impress me long-term.