Available finishes

Personal configuration

Available finishes.

Finish and configuration choices for MSB M205 Mono Power Amplifier. Final samples, specification and pricing are confirmed before order.

MSB M205 Mono Power Amplifier — Matte Silver

Original MSB image · selected finish

Selected finishMatte SilverChassis

Material palette

Explore the finish.

Choose each finish to view the closest original MSB product image for the selected configuration. Product colours are never digitally altered.

This model is offered in silver and black anodised finishes. Previews use MSB photography; final availability is confirmed before order.

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Chassis

Swatches are a selection guide. Natural grain, ambient light and screen settings affect appearance; the final physical sample and availability are confirmed before order.

The detail

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.

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.

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.

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.

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.

Complete product information

Manufacturer technical data

Complete technical specification

Complete manufacturer specifications and engineering information for MSB M205 Mono Power Amplifier.

Frequency response
20 Hz–20 kHz, ±0.03 dB
Selectable input impedance
75 Ω / 300 Ω / 1.2 kΩ
Output impedance
0.01 Ω, 20 Hz–20 kHz
Static power consumption
90 W
Gain
23.8 dB with 150 Ω source impedance
Equivalent input noise
0.65 μV, 22 kHz bandwidth
Input
gain stage: Class A; double-balanced; impedance-matched; fully discrete; independent power
Continuous output, 8 Ω
220 W at less than 1% distortion
Continuous output, 4 Ω
400 W at less than 1% distortion
Dual bi-amp output, 8 Ω
200 W at less than 1% distortion
Dual bi-amp output, 4 Ω
380 W at less than 1% distortion
Output
2 × binding-post sets
Output stage
Class AB; balanced; medium bias; current-gain-only
Operating voltage
120/240 V auto-switching; fixed 100 V version
Chassis dimensions
16 × 19 × 6.5 in / 404 × 483 × 165 mm without feet
Weight
90 lb / 41 kg
Amplifier type
Mono power amplifier; specifications and dimensions are per amplifier
Signal-to-noise ratio
Above 130 dB; above 133 dBA, 20 Hz–22 kHz
Controls
Input-impedance switch; On/Off; Standby; display dimmer; delay/12 V mode switch; 2 × MSB 12 V trigger ports
Fuse
¼ × 1¼ in, 10 A, 250 V slow-blow
Height with feet
7 in / 178 mm
Product feet
M6 × 1 thread; three- or four-foot arrangement
Included accessories
User manual and IEC C19 power cord
MSB M205 Mono Power Amplifier

Product details

Product photography & engineering

Product details.

MSB product photography, construction, materials and finish.

Photography: MSB and the Swedish Statement Audio catalogue.