M&K Sound
M&K Sound C15S Custom Installation Subwoofer with VA500 Blue Edition Amplifier
15" Custom Installation Passive Subwoofer • Dedicated 500W RMS Rack Amplifier • THX-Level Performance • Behind-Screen Installation • Sealed MDF Cabinet
Reference Bass for Dedicated Home Theater Installations
The M&K Sound C15S Custom Installation Subwoofer with VA500 Blue Edition Amplifier was engineered specifically for dedicated home theaters where uncompromising low-frequency performance and concealed installation are equally important. Designed to fit behind acoustically transparent screens while matching the depth of M&K's S150 loudspeakers, the C15S delivers exceptional bass output without sacrificing valuable installation space.
Unlike traditional powered subwoofers, the C15S utilizes the dedicated VA500 Blue Edition external amplifier, custom voiced exclusively for this enclosure. Together they provide outstanding dynamic range, optimized boundary compensation and the flexibility to stack multiple subwoofers for larger cinema installations while keeping amplifier heat outside the enclosure.
Highlights & Benefits
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Purpose-Built Installation System — Dedicated passive subwoofer and matched external amplifier designed as one complete solution.
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Shallow 11.7-Inch Cabinet — Perfect for behind-screen installations and false-wall home theaters.
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Dedicated VA500 Blue Amplifier — 500W RMS / 800W peak amplifier optimized specifically for the C15S.
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Stackable Design — Included stacking hardware allows multiple C15S subwoofers for higher output installations.
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Professional Construction — Heavy-duty 1-inch MDF cabinet with extensive internal bracing minimizes cabinet resonance.
Technology & Design
15-Inch High Output Driver — Ultra-stiff paper pulp cone with fiberglass dust cap provides exceptional transient response and high output capability.
Dedicated External Amplification — Separating amplifier and enclosure improves cooling while simplifying service and installation.
Boundary Compensation EQ — Three-position EQ switch optimizes bass whether positioned along a wall or inside a corner.
Rigid Cabinet Construction — Full 1-inch MDF enclosure with center and front-to-back bracing dramatically reduces cabinet vibration.
Frequently Asked Questions
Is the amplifier included?
Yes. This package includes both the C15S passive subwoofer and the dedicated VA500 Blue Edition amplifier.
Can multiple C15S subwoofers be used together?
Yes. M&K includes stacking hardware specifically designed for multi-subwoofer installations.
Is this designed for hidden installations?
Absolutely. The shallow cabinet was developed specifically for behind-screen and custom home theater installations.
Can another amplifier be used?
The C15S was engineered around the VA500 Blue amplifier, and M&K recommends using the supplied amplifier for proper performance.
Why Buy From Us
- Authorized M&K Sound Dealer
- 5% Reward Points
- Expert Home Theater Design Assistance
- Professional Installation Available
Specifications
Product
Passive custom installation subwoofer with dedicated amplifier
System Principle
Sealed enclosure
Woofer
1 × 15" Ultra-Stiff Paper Pulp driver with fiberglass dust cap
Frequency Response
22Hz–200Hz ±3dB
Frequency Roll-Off
20Hz (-6dB nearfield)
Continuous Power Handling
500 Watts IEC
Long-Term Power Handling
800 Watts IEC
Maximum SPL
118dB Continuous / 121dB Peak
Amplifier
VA500 Blue Edition
Amplifier Power
500W RMS / 800W Peak
Amplifier Controls
Volume, Phase, Variable Crossover
Boundary EQ
3-position Room Adaptation
Inputs / Outputs
Stereo RCA Line In / Out
Cabinet Dimensions
28.5 × 19.6 × 11.7 in (725 × 498 × 298 mm)
Subwoofer Weight
71.6 lbs (32.5 kg)
Amplifier Dimensions
16.9 × 1.7 × 8.8 in (429 × 44 × 224 mm)
Amplifier Weight
8.8 lbs (4 kg)
What's in the Box
- M&K Sound C15S Custom Installation Subwoofer
- VA500 Blue Edition Amplifier
- 2 Bass Brace Floor Brackets
- 2 Stacking Coupler Brackets
- Rubber Feet
- Power Cord
- Owner's Documentation
