Marshall Kilburn III vs JBL Xtreme 4: here's which Bluetooth speaker I'd spend my own money on

The Marshall Kilburn III serves up an incredible combination of beautifully balanced audio, meaty features and premium aesthetic. Its 50-hour battery life means you’ll barely ever have to charge it too. Sure, it’s more costly than its predecessor was at launch, and you can get better protection against the elements from rivals like the Xtreme 4, but the Kilburn III is still one of the best-sounding (and looking) models in its weight class.

• Exceptional battery life
• Classy amp-inspired design
• Highly effective placement compensation

• Inferior IP rating to Xtreme 4
• No multi-speaker pairing
• Not as portable as JBL’s speaker

• Ultra-rugged design
• Seriously powerful audio output
• Considerably lighter than Kilburn III

• Requires EQ tuning to sound its best
• Lower battery life than Kilburn III
• Exterior design lacks sex appeal

I've tested a lot of Bluetooth speakers during my time here at TechRadar – everything from mini ...