FM 411-MKIII vs Adcom GFA-5300
The GFA-5300's power @ 8ω is 80W against the FM 411-MKIII's 160W, its signal-to-noise 100 dB against 110 dB, its power @ 4ω 125W against 300W, and its thd 0.180% against 0.005%.
AI-generated product photo — not official manufacturer imagery.
AmplifiersPower AmplifiersDiscontinued
Estimated price (community-sourced)
$91.88
Around — community and catalog average, updates slowly
About the FM 411-MKIII
The FM Acoustics LTD FM 411-MKIII is a high-end stereo power amplifier in the Resolution Series. It uses circuit technology pioneered in the FM 1811 and FM 115, with a higher-capacity power supply, improved channel separation, enhanced interference rejection, and refinements aimed at lowering distortion and improving dynamics. FM Acoustics describes it as a fully protected, hand-crafted Swiss amplifier with proprietary discrete Class A input circuitry, automatic handling of balanced and unbalanced sources, and output capability intended for demanding loudspeakers and low-impedance loads. The product page indicates it is a current Resolution Series model, while third-party dealer listings note "price on demand."
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 160W @ 8Ω
- Power @ 4Ω
- 300W @ 4Ω
- Input Sensitivity
- 1.6V RMS
- Input Impedance
- 40Ω
- Max Input Voltage
- 7.8V RMS
Analog Output
Analog signal output specifications
- THD
- 0.005%
- SNR
- 110 dB
- Output Voltage
- 0.1V RMS
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Analog Inputs
- XLR, unbalanced
- Analog Outputs
- FORCEPLUG 200
Key Specifications
Power: 160W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions