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<blockquote data-quote="Scott Helmke" data-source="post: 50928" data-attributes="member: 96">Re: Sennheiser EW300 Transmitter two mono sendsThe basic theory is that the second channel for stereo is kind of squeezed in upside down - and the way it&#039;s set up in standard stereo is that the regular channel is L + R, while the second channel is L - R.&nbsp; That way a mono receiver (which doesn&#039;t know about the second channel) gets summed mono, while a stereo receiver does a little summing math and ends up with separate L and R channels to give to the user.The side effect of this is that if the transmission is somewhat compromised, the second (L-R) channel gets lost first.&nbsp; So that&#039;s the &quot;it converges to mono&quot; thing.&nbsp; In a hostile environment it&#039;s sometimes necessary to switch the IEM system from stereo to mono for more reliable operation.As Andrew said, in practice it generally works just fine.&nbsp; You&#039;d have stereo IEM users complaining a lot if there was a problem like that anyway.&nbsp; The rest of the question is just to be sure that your antenna situation is correct and that you&#039;ve done your homework for frequency coordination.</blockquote>

[QUOTE="Scott Helmke, post: 50928, member: 96"] Re: Sennheiser EW300 Transmitter two mono sends The basic theory is that the second channel for stereo is kind of squeezed in upside down - and the way it's set up in standard stereo is that the regular channel is L + R, while the second channel is L - R. That way a mono receiver (which doesn't know about the second channel) gets summed mono, while a stereo receiver does a little summing math and ends up with separate L and R channels to give to the user. The side effect of this is that if the transmission is somewhat compromised, the second (L-R) channel gets lost first. So that's the "it converges to mono" thing. In a hostile environment it's sometimes necessary to switch the IEM system from stereo to mono for more reliable operation. As Andrew said, in practice it generally works just fine. You'd have stereo IEM users complaining a lot if there was a problem like that anyway. The rest of the question is just to be sure that your antenna situation is correct and that you've done your homework for frequency coordination. [/QUOTE]

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