Hifi Racetrack Sub?

You can get an OEM type unit like the one in the JBL boom box from Ali. Is better than the SB and does solid bass levels down to 40hz as per JBLs touting
Link please?

Tang Band has (or used to have) a few models as well.
Thank you I'll take a look 🙂 Would you happen to know any specific models I can look into?

Edit: Would anyone out there happen to have the model number for the race track woofer in the genelec 8361?
 
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