Note qqs details that you might choose to do or not.
The rear deck offers really the minimum.
LFE RCA jack (mono what) no RCA stereo input
No high-level input (speaker type), suddenly no output high level either.
Adjusting volume and that's all (no cut so low passes a sound or an amp that handles this LFE cut is almost obligatory card)
No phase inversion.
On or OFF, no on / auto-off.
A slight whir when it is on, but it is usual on caissons.
He did a good job on the cheap, but be sure it fits your needs (single, simple connection, no settings).
