Run 3 Ohm subwoofer with "4 Ohm stable" amp?


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Here is how I plan to wire my PPI PC650 (6x50rms at 4 Ohms).

Channel 1 and 2, Bridged: Left Speaker, 4 Ohm (Dynaudio MKII)
Channel 3 and 4, Bridged: Right Speaker, 4 Ohm (Dynaudio MKII)
Channel 5 and 6, Bridged: Subwoofer, 3 Ohm (single JL Audio 8W7)

The problem is that the amp is 4 ohm stable when bridged. Will I have problems with the sub? I could unbridge the amp but then I would only be putting in 50watts. I will not run this SQ system very loud.

Any help would be appreciated.

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