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Distance behind speaker

Anders_L, modified 1 Month ago.

Distance behind speaker

Youngling Posts: 1 Join Date: 10/17/20 Recent Posts

So I have my first pair of Genelecs.8020s, yet to be hooked up. I intend to use them in my bedroom, for those rare moments of inspiration, and when heading over to the (only slightly bigger) home studio is too far for a senile old fart...
​​​​​​​Anyways: I read that I'm supposed to have a 5 cm clearance behind the speakers. But is that to the nearest reflecting surface? I.e. If I have 5 cm of acoustic foam on the wall behind them, do I need another 5 cm of fresh air for the speakers to breathe, or can I back them up all the way to the foam?