It's very hard to tell in a showroom just how loud a digital piano is.

I'm wondering if 2x30W inbuilt speakers (as per the Roland KR5) is loud enough for a digital piano in a medium sized room in the home. Would that be comparable volume-wise to a standard upright acoustic piano?

Obviously, the more powerful the speakers, the better, but I wondered whether those on the KR5 were sufficient.

Thanks in advance for any thoughts on this.
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