The Dayton Audio product OP linked to is an inline DSP adapter, probably derived from one of their ADAU1701-based modules. While it is unclear what OP is trying to achieve, adding DSP capabilities to his sub did not appear to be one of his goals.
a subwoofer dongle anyone tried it ? moderator NOT selling this !
has anyone ever managed to get this dongle to work ? tried to ? thx 
would like to try it w/ the "new " allison dual sealed push pull subs ! " thinking i will mod the two Klipsch wireless subs I have so i have a switch so I can use their plate amps to power the Allison! or some other external subs have a 1/4 " phono plug or ? so a switch to send the power to the external subs will do some blind A-B ! invite friends over to do the switching ! 
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I don’t have any experience with this one, but personally I think I’d go with the REL wireless product.
Cheers |
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Dayton DSP-LF at Parts Express
https://www.parts-express.com/Dayton-Audio-DSP-LF-Low-Frequency-DSP-Controller-230-520?quantity=1 |