Depending on your definition of moderate and how loud you like to listen, and to what, they could work. They are intended as mid field monitors although their replacement, the KH310, is described as a near field monitor. I did some searching on the Neumann site, but could not find their current definition of near/mid field, but it's probably there. The larger KH410 would definitely fill any ordinary room, but has a little of that bass reflex sound which many like and, I think, describe as 'slam'.
These speakers have been sold (I thought I had removed the ad or posted that, but maybe not. They were coincidentally and most appropriately sold to an Asian fellow who was involved in the design of the replacement KH 310. He had 5 in China in a surround system and left them there and missed the sound of these. He filled me in on the background, including the fact that the mid dome of these was mfd by Dynaudio, whereas it is now of Chinese origin, as are the other drivers, I think.
They went to the perfect buyer!