Live end / dead end is sort of old school. It works fine! But it's not really necessary to make the entire front of the room dead. What matters most is treating the specific reflection points. Some pro studio designers like to keep the entire front of the room very live, but that requires side-wall angles of at least 30 to 35 degrees. You don't have space for that, so just stick what the tried and true.
--Ethan
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