Musical Fidelity M8S-500S Power Amplifier
Price range: $5,999.00 through $6,499.00
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The Musical Fidelity M8S-500S Power Amplifier is a high-end, fully balanced stereo amplifier designed to deliver immense power with vanishingly low distortion, offering effortless performance for virtually any loudspeaker. It is an engineering masterpiece that combines raw power with audiophile-grade precision.
Design and Build
The M8S-500S is a substantial piece of equipment, reflecting the quality of components housed within its heavy, resonance-damping chassis. It features internal construction that is essentially two high-current bridged monoblock amplifiers within a single, elegant enclosure, a design choice that helps maintain channel separation and maximize dynamic capabilities. The robust build ensures durability and helps shield the internal circuitry from external interference. Despite its massive power output, it maintains a relatively compact footprint for its class. The unit, available in both black and silver finishes, weighs 29 kg (approximately 64 lbs) unpacked, which speaks volumes about its solid construction. The design incorporates large heat fins on the sides, which manage the significant heat generated under normal operation, a testament to its high-power capability and efficient thermal management.
Power and Performance
The core of the M8S-500S is its prodigious power delivery. It provides a massive 500 watts per channel into 8 ohms, an output that nearly doubles into 4 ohms (around 900 watts), demonstrating its ability to drive even the most demanding and low-impedance speakers with ease and unconditional stability. This huge power reserve, combined with high current delivery capabilities, means the amplifier handles massive dynamic swings without breaking a sweat, from the softest musical details to explosive crescendos.
Musical Fidelity has engineered the M8S-500S for exceptional technical performance. Key specifications include:
- Total Harmonic Distortion + Noise (THD+N): Typically less than 0.007% (or even <0.001% at 1kHz), an almost undetectable level that results in a pristine, uncolored sound.
- Signal-to-Noise Ratio (SNR): Exceeds 120dB (‘A’-weighted), ensuring an incredibly quiet background that allows the music to emerge from a silent canvas.
- Frequency Response: A wide and linear response of 10Hz to 80kHz (+0, -1dB), capturing the full spectrum of sound with accuracy.
This combination of massive power, low distortion, and low noise contributes to an effortless and highly realistic sound reproduction.
Sonic Character and Experience
Reviewers and users consistently praise the M8S-500S for its sound quality, describing it as sweet, clear, and transparent. The amplifier creates a vast, deep, and holographic soundstage with abundant air and space, allowing instruments and vocalists to be placed with precise imaging and outstanding realism within a three-dimensional sonic landscape. The tight control over the bass frequencies is particularly noted, described by users as an “iron grip” on speaker cones, delivering controlled yet impactful low notes. The midrange transparency is extraordinary, and the high frequencies sparkle with natural decay, all without the harshness or rolled-off characteristics sometimes found in less refined designs. It serves up music with impressive speed and precision, delivering delicate details one moment and massive dynamic slam the next, making it suitable for any style of music.
Connectivity and Integration
The M8S-500S offers versatile connectivity options for seamless integration into any high-end audio system.
- Inputs: It features both balanced XLR and unbalanced RCA line-level inputs, accommodating various preamplifiers and source components.
- Outputs: For system flexibility, such as bi-amping, it includes both RCA and XLR loop outputs.
- System Control: A 12V trigger input and output allows for automated power on/off synchronization with compatible devices, enhancing user convenience and system integration.
The M8S-500S is designed to be the perfect sonic and visual partner for the Musical Fidelity M8s Preamp. It is a masterpiece of engineering that provides a transformative listening experience, built for the serious audiophile seeking reference-level performance.
Features & Specifications
Performance
- Power output: 500 Watts per channel into 8 Ohms (27 dBW)
- THD(+ noise): <0.007% typical
- Signal to Noise Ratio: >120dB ‘A’ weighted
- Frequency Response: +0, –1dB, 10Hz to 80kHz
Inputs
- 1x RCA Phono Line Level
- 1x Line level XLR Balanced
- 1x Trigger input 3.5mm (⅛”) mono jack ±4.5 to ±15V DC
Outputs
- 1x RCA Phono Line Level (loop output)
- 1x Line level XLR Balanced (loop output)
- 1x Trigger output 3.5mm (⅛”) mono jack 12V DC
General
- Dimensions – WxHxD (mm): 440 x 160 x 460
- Weight (unpacked / packed): 29 kg / 34.5 kg
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