Speedwoofer 10S MKII

More Power. Deeper Bass. Greater Control.

The Speedwoofer 10S MKII builds on the legacy of the original Speedwoofer 10S - our most popular subwoofer platform - and elevates it with more power, deeper extension, and enhanced dynamic performance; delivering a subwoofer that feels stronger, more responsive, and more versatile.

At its core is RSL’s XDR™ (Extended Dynamic Range) DSP amplifier, delivering 400 watts RMS and over 1000 watts peak power for increased headroom and effortless output . The result is bass that hits harder, reaches deeper, and maintains control even at higher listening levels.

The 10S MKII is ideal for:

• Medium to large living rooms and media spaces
• Dedicated music and home theater systems
• Enthusiasts who want even more output and deeper bass than 10E
• Discerning audiophiles, who may also need speaker level connections

The 10S MKII strikes the perfect balance between size, power, and performance.

Features:

• 400 watts RMS / 1020 watts peak
• Cast-frame 10” woofer w/ improved thermal capacity
• LFE mode offers deeper extension (22Hz!)
• Music mode matches original 10S w/ improved dynamics
• Rear-vented Compression Guide™ tuning
• Wireless receiver built in. Option to add transmitter during checkout*
• Black 10S MKII includes black grille / white 10S MKII now includes heather gray grille

Terms & Conditions:

• Free shipping within the 48 states! Discounted international shipping available.
• Factory new Speedwoofers include a 30-day in-home trial period.
  • $50 return fee applies per 10S MKII from the 48 states. (measure your space!)
• Cancellations must be requested prior to shipping. A 3.5% cancellation fee will apply.

White Speedwoofers now include heather gray grilles (white available separately)