MSB Technologies

MSB M500 Mono Power Amplifier

  • MSB M500 Mono Power Amplifier - Alma Music and Audio - San Diego, California
  • MSB M500 Mono Power Amplifier - Alma Music and Audio - San Diego, California
  • MSB M500 Mono Power Amplifier - Alma Music and Audio - San Diego, California
  • MSB M500 Mono Power Amplifier - Alma Music and Audio - San Diego, California
  • MSB M500 Mono Power Amplifier - Alma Music and Audio - San Diego, California
  • MSB M500 Mono Power Amplifier - Alma Music and Audio - San Diego, California

MSB Technologies

MSB M500 Mono Power Amplifier

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The M500 Stereo Amplifier

Superior performance.  Amplified.

Powered by innovation.

The world’s leading DACs needed an amplifier to match. The result was a clean slate design that could meet our DAC’s ultra high dynamic range head on. With the amplifier’s architecture optimized in critical areas, audio performance, longevity, and an ability to drive any speaker became our principal design parameters. We redefined the idea of what an amplifier can be, embedding the M500 with a fully modular design alongside a 1.0 Farad Power Core, a matched impedance input stage and an all billet CNC case. The finest amplifier we’ve ever created, the 500 series redefines excellence and sets a new bar in the industry.

Uncompromising  design.

The M500 features a discrete design featuring a class A matched impedance input stage. This result is a product with minimized signal reflections, input noise, and distortion while also maximizing power transfer and dynamic range in a zero negative feedback design. With custom low-noise high-current toroidal transformers and rugged high-current output buffers, the M500 provides a transparent, holographic listening experience that’s completely fatigue free. All components were meticulously chosen for their sonic performance and longevity, ensuring your amplifier is built to last.

Billet CNC heatsink.

The 500 series amplifier is designed and lovingly crafted in our factory based in California. Each of the heatsinks start out as a 51lb aluminum block before sixty percent is removed over eight hours of machining, resulting in 17.5 lbs of refined aluminum. This high efficiency design provides a surface area of over 10,000 sq in per amplifier. What’s more–the fin thickness is slightly varied to help reduce resonances and ringing in the heatsinks, while multiple high power heat pipes distribute heat evenly for optimal thermal and electrical performance.

Core values.

Building  the 500 series amplifiers with a core enclosure greatly improved their reliability and performance. Upon completion, the cores are rigorously tested and stocked for orders, ensuring the highest quality product is ready at a moment’s notice. With this segmentation, your system is optimized for performance and resilience.

Smart control features.

The M500 is equipped with a simple, user-friendly control interface. Intuitive push buttons, remote commands, and the 12V triggers guarantee  control over power and standby modes. Further control of amplifier “power on” timers and soft-start circuits allow a multi-amplifier system to power up without putting strain on your listening room’s electrical system.

Powerful configurations.

Intuitively oriented speaker lugs direct your speaker cables in the right direction without strain. Multiple ground posts enable EMI reduction strategies, including shielded cables and system star grounds. A 20 amp IEC connection is provided for high current delivery, while three gain settings optimize dynamic range for any speaker.

Anodized finishes.

Available in matte silver or matte black.



The M500 Mono Amplifier

(per mono amplifier)
Technical Specifications
Static Power Consumption 150 Watts On
Standby power less than 2 watts
Operating Voltage Range 100V or 105-130V/210-260V configured at the factory.
Fuse 1/4"x1-1/4" 15A 250V Slow Blow
Input 1x XLR Input
Output 2x Binding post set per channel
Controls Gain switch
Input Impedance Switch
On/Off Button
Standby button
Display Dimmer
12V Mode Switch
2x MSB 12V trigger port
Continuous Power Output (8Ω) < 1% distortion 500 W
Continuous Power Output (4Ω) < 1% distortion 1000 W
Frequency Response (20 to 20kHz) ±0.025dB
Signal to Noise (20 to 22kHz) >134dB (>137dBA)
Equivalent Input Noise (22kHz BW) 0.5μV
Low Gain (75Ω input) 14.8dB
Medium Gain (75Ω input) 20.8dB
High Gain (75Ω input) 26.8dB
Input Impedance (User Selectable) 75Ω / 300Ω / 1.2kΩ
Chassis Dimensions (Per Mono Block)
Width: 15 in (381 mm)
Depth: 23.25 in (590 mm)
Height: 10.5 in (267 mm)
Weight: 135 lbs (61.25 kg)
Shipping Dimensions (Per Mono Block)
Width: 23 in (585 mm)
Depth: 33 in (839 mm)
Height: 21 in (534 mm)
Weight: 194 lbs (88 kg)
Included Accessories
User Manual
IEC C19 Power Cord