Gaze, I'm sure that you'll really enjoy your M60s. If you're going to also spend good money on a sub there appears to be no compelling reason to select a mode on your 2500 which wouldn't allow you to use it. Even with speakers such as the M60s with good bass, a well-located and calibrated sub will give an even better overall result, both with two channel and multi-channel material.


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Enjoy the music, not the equipment.