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10S MKII CG23M 2.1 STEREO SYSTEM

Bigger Sound. Deeper Bass. Elevated Performance.

The 10S MKII CG23M 2.1 System brings together scale, clarity, and enhanced low-frequency performance; combining the expansive sound of the CG23M with the increased output and depth of the Speedwoofer 10S MKII.

At the core of the system, the CG23M speakers deliver detailed midrange, smooth highs, and a larger, more dimensional soundstage, filling the room with ease. The CG23M's dual-woofer design provides greater output, improved dynamics, and a stronger sense of impact, all while maintaining a natural, balanced sound.

Paired with the Speedwoofer 10S MKII, the system steps up in performance, offering deeper extension, higher output, and more dynamic bass that adds weight and realism without sacrificing control. Powered by a 400W RMS DSP amplifier, the 10S MKII delivers increased headroom, refined performance, and flexible tuning for both music and home theater use.

The result is a system that feels larger, more effortless, and more engaging, while maintaining the accuracy and balance RSL is known for. This system is perfect for living rooms, listening spaces, and setups where you want more scale and deeper bass performance from a compact system.

Terms & Conditions:

  • Free shipping within the 48 states!
  • Highly discounted international shipping available
  • 30-day in-home trial period
  • Cancellations must be requested prior to shipping
    • A 3.5% cancellation fee will apply
  • $50 flat-rate return fee per Speedwoofer 10S MKII from the 48 states. (measure your space!)

RSL Notice

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California Proposition 65 Notice

Our speakers are built using CARB 2–compliant wood, which is manufactured with ultra-low-emitting resins that may involve trace amounts of formaldehyde, a chemical included on California’s Proposition 65 list. These traces relate to the manufacturing process of the MDF itself, not to the normal use of the finished loudspeaker.The finished product maintains extremely low emissions that meet strict California air-quality standards, and everyday use of the speaker does not meaningfully increase exposure. This notice is provided simply to comply with California’s labeling requirements and to keep consumers fully informed.


$799
Free Shipping within the Continental US
* TAXES (GST) INCLUDED *
View Specifications
If you’re not thrilled with an RSL product within 30 days, return it hassle-free. Just contact us and we will email a return label with instructions. A return fee will apply to each Speedwoofer, wireless device, and amplifier / AV receiver included. (For International Returns are different, call us.) International returns are to be arranged and paid by the customer. RSL does not cover international return shipping, or shipping insurance.
All products ship for free to the contiguous 48 States. This includes all Speedwoofers, System Packages, A/V Receivers, Individual Speakers, and Accessories!
A $50 flat-rate return fee applies per Speedwoofer 10E or 10S MKII returned from the 48 states. Returning a defective item under warranty for replacement does not carry a return fee, as the return label will be supplied by RSL (U.S. Only)
All RSL speakers are covered under a 5 year warranty. (Excludes Speedwoofers)
All Speedwoofer 10E and 10S MKIIs include a 2 year amplifier warranty, and a 5-year warranty on the woofer and enclosure. If something isn't performing like new throughout the warranty period, please don't hesitate to email us for assistance!
Return any RSL speaker within 30 days in "like-new" condition, and receive your full money back. EXCLUDES SPEEDWOOFERS, iA255.1s, and WIRELESS TRANSMITTERS. *Items received with blemishes or without proper packaging may result in minor fees.

10S MKII CG23M 2.1 STEREO SYSTEM

CG23M Components
Features
CG23M Size
Mounting
Speedwoofer

SUPERIOR BUILD FROM TOP TO BOTTOM
A NO-COMPROMISE HI-FI AND HOME THEATER SOLUTION
Included: 1 Speedwoofer 10S MKII, 2 x CG23M Bookshelf Speaker

Compact bookshelf and “LCR” models, available for flexible multi-channel options.

Scratch resistant matte finish blends into any environment

Patented Compression Guide tuning for extended bass response

Improved efficiency over original gloss models

Audiophile grade crossover components

Mineral-filled woven aramid fiber cones

Recommended for use with amplifiers rated from 40W to 150W per channel

FLEXIBLE MOUNTING SOLUTIONS

Speedwoofer 10S MKII

Speedwoofer 10S MKII

The Speedwoofer 10S MKII takes the multi-award-winning and revolutionary performance of the original to the next level.  A brand new RSL XDR™ series (extended dynamic range) proprietary DSP amplifier design, delivers even more peak and continuous power than ever before – 400 watts RMS with 1020 watts peak. The XDR™ amplifier now offers selectable dual mode DSP for a more optimized movie and music experience. Select movie mode (LFE) to use the MKII’s extra power for deeper bass extension and higher output. Music mode sets the performance to match the original 10S performance but with more power and greater dynamics. A new rear-vented Compression Guide™ tuning achieves the same class leading performance but with reduced air restriction and port noise.

COMPRESSION GUIDE TECHNOLOGY

THE ACE UP OUR SLEEVE

Compression Guide technology is the difference between RSL speakers and all other speakers. It's the secret behind our award-winning sound. It's why RSL speakers sound so clear and incredibly realistic.

STANDARD SPEAKERS & SUBWOOFERS

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How Do
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How Do
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RSL SPEAKERS & SPEEDWOOFERS

SPECIFICATIONS

Speedwoofer 10S MKII
(1 included)
  • Frequency Response:
    • MKII/LFE mode (anechoic): 22-200 Hz ± 3db
    • MKII/LFE mode (+ room gain): ~18-200 Hz ± 3db (varies with room size)
  • Woofer:
    • 10” 400+ watt rated woofer
    • 4 ohm nominal Impedance
    • Die-cast aluminum frame
    • High-Excursion FEA optimized design motor structure
      • 1008 low-carbon steel motor parts (T-yoke and field plate)
      • Premium grade dual-stacked ceramic magnets
      • Ultra-high Temp (200° C), Multi-layer Copper Voice Coil
    • High yield fatigue-resistant Nomex™ spider
    • Kevlar™ reinforced paper cone with full anodized aluminum dust cap
    • High durability NBR surround
    • High duty cycle flexible tinsel lead wire with strain relief feature
  • Enclosure:
    • Rear-vented Compression Guide™ tuning
    • Integrated cross-bracing reinforcement
    • ¾” thick MDF woofer panels
    • Laminated 1” front woofer baffle
    • Removable cloth grille (black / heather gray)
  • XDR Series Amplifier:
    • 400 watts RMS < 1% THD
    • 1020 watts peak
    • Selectable dual-mode DSP – LFE/Music
    • Integrated double-precision 56-bit, 50 MIPS DSP processor
    • Intelligent class D topology, >85% Efficiency
    • Signal to noise ratio: >85dB
    • Auto-ON Threshold: 3mV
    • Auto-OFF: 20 minutes (no signal)
    • Stand-by power consumption: ~0.5 watts
    • Power Input: Selectable 110/230VAC 50-60Hz switch
    • Low EMI design, CE & C-Tick compliant
    • Line level RCA inputs and RCA pass-through signal outputs
    • Speaker level binding post inputs
    • Chassis ground screw
    • Wireless Pairing Button: Integrated 2.4GHz wireless receiver compatible with RSL AT-3 & AT-4 Transmitters
  • Crossover Frequency: 40-200 Hz variable
  • Crossover Slope: 24 dB/oct
  • Phase Control: 0 to 180 continuously variable
  • Power Input: 115V, 60Hz, 230V, 50/60Hz AC
  • Feet: Includes 4 rubber feet
  • Dimensions with Feet: H: 15 1/2” W: 15” D: 15 3/4”
  • Weight: 40.6 lbs
  • Shipping Dimensions: H: 20” W: 20” D:20”
  • Shipped Weight: 48.6 lbs
  • Fuse: 115V (T5.0AL/250V) – 230V (T2.5.0AL/250V)
CG23M Bookshelf Speaker
(2 included)
  • Woofer: Dual 4” mineral-filled woven aramid fiber cones with Y35 high-grade ferrite magnets
  • Tweeter: 1” silk dome, neodymium magnet
  • Frequency Response: 80-20,000 Hz ± 3db
  • Nominal Impedance: 4 ohms
  • Recommended Impedance setting for amplifiers: 6 or 8 ohms
  • Sensitivity: 89 dB SPL @ 1W/1M
  • Recommended Power: 40-150 watts
  • Crossover Frequency: 2,800 Hz
  • Crossover Slope: Asymmetric 12 dB/octave
  • Crossover Parts: Air-core Inductors, poly capacitors, and gold-plated binding posts
  • Tuning Method: Compression Guide™
  • System Resonance: 75 Hz
  • Weight: 10 lbs.
  • Dimensions (vertical): H: 16” W: 6” D: 6 1/2 “(Without grille 6 ”)