Shield Hard Drive Circuitry from Power Supply Surges

WD Internal Drives Internal Drives
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Are the WD NAS Red drives shielded from magnetic interferance?

I have the 2gb Red NAS drive in a Synology enclosure and is is sitting on top of a Bose sub woofer for my surround system.
Is the NAS drive shielded?
If it is not shielded what precautions should I take? Is there a way to shield it?

I am also finding out if the Bose sub woofer is shielded.

Just want to protect my data.

Thanks.