MSB M205 Mono Amplifiers

The M205 Mono Amplifier Impressive performance.  Compact mono design. Innovation. Redoubled. After the resounding success of the S202 Stereo Amplifier, there were many requests for an improved mono amplifier in the same compact chassis. The M205 refines the S202’s already incredible performance with an upgraded input stage and a doubling of the power supply transformers and capacitors. The result is a spectacular increase in sound quality with increased sound-stage definition, vocal realism, and instrument solidity available from the very first notes. The M205 perfectly complements our DAC’s ultra high dynamic range with optimized architecture in the critical areas of audio performance, power supplies, and ultra low-noise design. The fully modular cores, matched impedance input stages and billet CNC chassis’ result in the highest value mono amplifiers we’ve ever created. Power without limits. Thanks to two massive custom low-noise high-current toroidal transformers and rugged high-current output buffers, the M205’s provide a transparent, holographic listening experience that’s completely fatigue free. This ensures that the amplifiers present consistent performance even with difficult speakers. Input Architecture. The M205 features a discrete design with a Class-A matched impedance input stage. The 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. All components were meticulously chosen for their sonic performance and longevity, ensuring your amplifier is built to last. Our PCB shop tour > Click here Billet CNC chassis. The M205 amplifiers are designed and lovingly crafted in our factory based in California. After 28 hours of CNC machining, two complete chassis’ of billet aluminium components are ready, maximizing heatsink area with a stunning visual profile. This high-efficiency design provides a surface area of over 3,000 in² per amplifier. High-power heat pipes distribute heat evenly for optimal thermal and electrical performance. Our machine shop tour > Click here Core values. Building the M205 amplifiers with core enclosures greatly improves 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. Our production tour > Click here S202 - Internal Core - 900px 10511 - 200 Series Assembly Output Board - 900px 10504 - 200 Series Gain Stage and Output Stage - 900px S202 - Board Core Assembly - 900px 10512 - 200 Series Assembly Heatsink - 900px Smart control features. The M205’s are equipped with simple, user-friendly control interfaces. Intuitive push buttons, remote commands, and the 12V triggers guarantee control over power and standby modes. Further control of amplifiers “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. Power Control Setup > Click here to learn more Powerful configurations. Intuitively oriented speaker lugs direct your speaker cables in the right direction without strain. With dual outputs, the M205 is ideal for a bi-amped system. Multiple ground posts enable EMI reduction strategies, including shielded cables and system star grounds. Grounding Setup > Click here to learn more Trade in program. While we’re committed to long lasting products that hold their value, we realize audio systems are always evolving. That’s why we’re thrilled to offer up to 100% trade-in value for existing MSB products when upgrading to a higher performing series. If you currently have an MSB DAC or amplifier that you love–but are looking to experience more from your system–please reach out to your local dealer. We’ll build a personalized offer for your existing MSB products that count towards a new DAC or amplifier.  Let us do the work of refurbishing and finding your current electronics a new home–they’ll continue to be enjoyed for years to come.   Technical Specifications: The M205 Mono Amplifier(per mono amplifier) Static Power Consumption 90 Watts OnStandby power less than 2 watts Operating Voltage Range 120/240V (Auto switching)100V (Fixed) Fuse 1/4"x1-1/4" 10A 250V Slow Blow Input 1x XLR Input Output 2x Binding post set per channel Controls Input Impedance SwitchOn/Off ButtonStandby ButtonDisplay Dimmer12V Mode Switch2x MSB 12V trigger port Continuous Power Output (8Ω) < 1% distortion 220 W Continuous Power Output (4Ω) < 1% distortion 400 W Dual Bi-Amp Continuous Power Output (8Ω) < 1% distortion 200W Dual Bi-Amp Continuous Power Output (4Ω) < 1% distortion 380W Frequency Response (20 to 20kHz) ±0.03dB Signal to Noise (20 to 22kHz) >130dB (>133dBA) Equivalent Input Noise (22kHz BW) 0.65μV Gain (150Ω source impedance) 23.8dB Input Impedance (User Selectable) 75Ω / 300Ω / 1.2kΩ Output Impedance (20 to 20kHz) 0.01Ω Topology Input/Gain Stage - Class-A- Double balanced- Impedance matched- Fully discrete- Independent power Output Stage - Class-AB- Balanced- Medium bias- Current gain only Chassis Dimensions (Per Mono Block) Width: 16 in (404 mm) Depth: 19 in (483 mm) Height: 6.5 in (165 mm) Without Feet7 in (178 mm) With Feet Weight: 90 lbs (41 kg) Product Feet: M6X1 Thread3 or 4 Foot Configuration Shipping Dimensions (Per Mono Block) Width: 24 in (610 mm) Depth: 28.25 in (718 mm) Height: 16.5 in (419 mm) Weight: 137 lbs (62 kg) Included Accessories User ManualIEC Power Cord