[Issue migrated from SourceForge | ID: 3011090 | Submitted by 'sonoro1234']
[http://sourceforge.net/support/tracker.php?aid=3011090]

p = ProxySpace.push;
// a 3 channel test sound
~test3 = { SinOsc.ar([2, 3, 5] * 100) * 0.2 };
~test3.playN([2, 4,7]) // playN to 3 non-adjacent channels CPU 5%
~test3.playN(Array.fill(400,{|i| i})) //CPU 45%

As I see sending to a bus should not use so much more CPU. It creates 400 new synths for doing the job as they are all doing the same calculation (not different sound to each bus)

Does it make sense??