The Passive Aggressives are the smallest practical DIY speaker with anything approaching full-range sound. If you truly need them to connect wirelessly to the computer, just feed them from a simple bluetooth amplifier and tuck the amp and cables out of the way. But bear in mind that your computer already has a few cords, and adding an audio cable isn't a big deal. It's not like a keyboard or mouse where the cables need to drape across your desk. The speakers themselves aren't going to be wireless, anyway, because then you'd have to keep charging them constantly. If you're that dedicated to the aesthetic, go for headphones.
Yeah Kanto can be pricey for what they are.
For less cost than $359 Kanto YU4 powered speakers the passive version with an amp or receiver area a better value:
Or even the larger Kanto YU Passive 5.25" $229 plus the amp or receiver will still cost less than the 4" Kanto YU4 powered speakers.
Onkyo TX-8220 $199 stereo receiver.
Fosi Audio BT10A $49 mini amp, has 3.5mm input instead of RCA so use the correct cable or adapter.
Or what is a nearby town or zip code I can search for used options for you? Reply here or private chat.
Thanks everyone, would this amp work: Amazon.com: [2021 Upgraded] Bluetooth 5.0 Stereo Audio Amplifier Receiver 2 Channel Class D Mini Hi-Fi Integrated Amp for Home Passive Speakers 50W x 2 TPA3116 - Fosi Audio BT10A: Electronics
I also bought some of these: