I own the BB3 & the W - KING X20. The BB3 excels indoors while it’s plugged in getting max power, placed near a wall for optimal bass response. The X20 retails for $319.99, but ever since it released on Amazon, it’s been reduced to $224.99 or less. This speaker is rated at 200 watts & it’s a beast for outdoor use. It has just about any & every sound adjustment & connections that you’ll ever need, even a guitar input. It’s also capable of handling up to 60 watt fast charging, which allows you to fully charge it in 3 hrs. It has a 24hr battery & I have a hard time draining it. The most important part, the sound quality at louder volumes. Unlike most speakers, when you get to 80-85% volume, the bass tends to hang around for the most part, & the mids & highs never sound shrill or ear piercing.😂
Thank you for sharing your experience with both the JBL Boombox 3 and the W-KING X20. It's always interesting to hear different perspectives on speaker performance. I find the sound quality of the JBL at louder volumes is also great, including clear mids and highs. I hope you continue to enjoy your listening experience with both speakers!