Hello,

Yes, the Sony SA-SW5 subwoofer is compatible with the Sony HT-A3000. You can connect it wirelessly to the soundbar.
You can find more information on our support page.

Sony Europe

Yes, the SA-SW5 subwoofer is compatible with the Sony HT-A3000 soundbar. It is designed to work with several Sony soundbar models, including the HT-A3000, to enhance the audio experience with deep bass.