Hey, RecNodeProxy: *newFrom { arg proxy, numChannels; ^this.audio(proxy.server, numChannels ? proxy.numChannels) .source_({ proxy.ar(numChannels) }); } shouldn't this be *newFrom { arg proxy, numChannels; ^this.audio(proxy.server, numChannels ? proxy.numChannels) .source_({ proxy.ar(numChannels ? proxy.numChannels) }); } ?? regards Till