FM 1811-MKII vs Nagra HD Amps
The HD Amps's power @ 8ω is 250W against the FM 1811-MKII's 500W, its signal-to-noise 110 dB against 115 dB, and its thd 0.030% against 0.005%. Both share power @ 4ω (1.0kW).
AI-generated product photo — not official manufacturer imagery.
AmplifiersPower Amplifiers
Estimated price (community-sourced)
$125,000
Around — community and catalog average, updates slowly
About the FM 1811-MKII
The FM Acoustics LTD FM 1811-MKII is a high-precision stereo power amplifier positioned as the company’s ultimate music-reproduction amplifier. FM Acoustics describes it as delivering the highest accuracy in music reproduction, with very high current capability, extremely low distortion, and the ability to drive virtually any loudspeaker load, including very low-impedance and complex reactive loads. The manufacturer lists a price of CHF 125,000 in external references, and the model is presented as part of the Resolution Series flagship line.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 500W @ 8Ω
- Power @ 4Ω
- 1.0kW @ 4Ω
- Amplifier Class
- A
- Damping Factor
- 95
- Minimum Impedance
- 1Ω
- Input Sensitivity
- 1.8V RMS
- Input Impedance
- 40Ω
- Max Input Voltage
- 20.0V RMS
Analog Output
Analog signal output specifications
- THD
- 0.005%
- SNR
- 115 dB
- Output Voltage
- 92.0V RMS
- Max Output Voltage
- 184.0V RMS
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 430 × 260 × 550 mm (W × H × D)
- Weight
- 47 kg (104 lbs)
Key Specifications
Power: 500W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions