This is from the current Emo manual for their amps on page 29. I couldn't find anything else in the manual which would preclude a power conditioner being installed. The manual actually suggests installing a line conditioner in some cases. It assumes that the conditioner will be sized to provide sufficient power to the amp. I would hate to see you lose your amp due to lightning, even though it does have installed protection devices.

Turn on and Turn off Thumps
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Plug the amplifier into an unswitched AC outlet, and use the 3.5mm Trigger Input connection with a trigger between 5-12 VDC from the source unit or preamplifier. This should allow the amplifier to turn on and off silently.
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If your powered subwoofer is the cause of the “thump” sound (not the other speakers connected to the amplifier), plug it into a different 115VAC outlet than the amplifier so there is no power surge conflict.
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Install a line conditioning device.