DiamondBoxx XLretro - Ships by Feb 15, 2026

XL Retro: The Ultimate Fusion of Classic Power and Modern Innovation

We're crafting a limited edition run of the XL Retro because our community demanded it. We've revived the iconic design of the original XL, complete with its legendary exposed woofers—no integrated grills here, so you can witness the full flex that made the XL famous. But we've supercharged it with the cutting-edge features of the XL3, including a 5-band EQ, adjustable stereo image control, and Bluetooth 5.1 with aptX HD support. It's the perfect blend of vintage vibe and contemporary performance.

Now Shipping Worldwide

Experience Wireless True Stereo Sound with customizable stereo width control for an immersive audio landscape. Powered by six meticulously hand-matched (for T/S parameters) 5.5" woofers and a 4" bass port, the XL Retro delivers bass you can feel in your chest. Crank it up to an ear-shattering 122dB at 1 meter—all driven by a robust 16.8V 15Ah Lithium-ion battery. Take your playlist anywhere, anytime, with no power outlet required.

At its core is a built-in 600W RMS (1000W Max) Class A/B 10-channel high-fidelity amplifier, configurable in tri-amped or bi-amped modes. It features 2-way (SPL MODE) or 3-way (SQ MODE) active crossovers and analog signal processing, optimizing sound quality in the lightest possible package while maximizing battery life. With zero-latency inputs, it's ideal for video syncing without any delay.

Engineered for endurance, the XL Retro's massive aluminum front panel doubles as the amplifier's heatsink, ensuring it performs at full blast all day—even on scorching hot days—without missing a beat.

Key Specifications

• Dimensions: 28 x 19 x 12 inches
• Bluetooth: 5.1 with aptX HD and True Wireless Stereo (TWS)
• Woofers: 6 x 5.5-inch aluminum cone with neodymium magnets
• Tweeters: 4 x 1-inch titanium dome with neodymium magnets
• Amplifier Power: 600W RMS (1000W Max)
• Frequency Response: 35Hz - 22kHz (±3dB)
• Weight: 42 lbs
• Internal Battery: 16.8V 15Ah Lithium-ion
• Playtime on Single Charge: 5-20 hours (depending on volume)
  • Add our C1000 to increase to 20 - 100 hours
• Battery Life: Over 1000 recharge cycles
• Charge Time (0-100% with 5A Charger): 4 hours

Plus, the XL Retro keeps the music flowing even while charging—never interrupt the vibe. Whether you're at a beach party, tailgate, or backyard bash, this is the speaker that turns heads and shakes the ground. Grab yours before they're gone!

XL Retro Stereo Expander Operational Description (same as XL3)

The King of all Bluetooth Boombox, the Model XLretro

Included Items 

DiamondBoxx Model XL Retro 

5A Lithium-Ion Battery Charger 

3.5 mm stereo audio cable 

User manual 

Please note that Model XLretro will has Bluetooth 5.x and will not connect via True Wireless Stereo (TWS) with older first or second generation DiamondBoxx products.  They can still be linked via cable.  

XLretro Owner's Manual