Give it some time to warm up/burn in. If it hasn't been used for a while it should sound better after a few dozens of hours or perhaps even after a few hours, hard to know in advance. What power cord do you intend to use with it ?
Yeah, I guess it will very much depend on the speakers it is used with, preferences and db level you play at. However, 120 Gryphon watts is not little. Still, very hard to choose without comparing side by side.
I heard rumors that Diablo 120 was more musical than Diablo 300 and that some people who didn't need the power of Diablo 300 chose the 120. But I heard it a few years ago when I was considering it. Perhaps now it is different. I understand, you are interested in new current Diablo.
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