A third speaker makes all the difference. Adding the Xtreme 2 completely changed the sound for the better. : r/JBL
JBL Xtreme 2 vs. Xtreme 3: What's the Difference, Which One Is Better? - History-Computer
Amazon.com: Hard Case for JBL Xtreme 3/ Extreme 2 Portable Waterproof Wireless Bluetooth Speaker, Travel Carrying Storage Holder with Zipper Pocket Bag Fit for Charger Adapter and Accessories : Electronics
JBL Xtreme 2 vs Xtreme 3: Beast Speakers! Which To Buy?
JBL Xtreme 2 vs Xtreme 3: Which is more Extreme?
JBL XTREME 3 VS. JBL XTREME 2 | BASS TEST 100% VOLUME !!! - YouTube
JBL Xtreme 2 | Portable Bluetooth Speaker
JBL Xtreme 3 vs JBL Xtreme 2 with Sound Comparison! - YouTube