FM 115 vs FM 1811-MKII
The FM 1811-MKII's power @ 8ω is 500W against the FM 115's 275W, its power @ 4ω 1.0kW against 500W, and its signal-to-noise 115 dB against 100 dB. Both share thd (0.005%).
AI-generated product photo — not official manufacturer imagery.
AmplifiersPower AmplifiersDiscontinued
Estimated price (community-sourced)
$65,000
Around — community and catalog average, updates slowly
About the FM 115
The FM Acoustics LTD FM 115 is a monophonic high-power solid-state amplifier from the company’s Resolution Series, aimed at demanding loudspeaker systems that require exceptional drive, control, and low distortion. FM Acoustics describes it as using enhanced balanced Class A stages, a proprietary true balanced input stage that auto-recognizes balanced, pseudo-balanced, or unbalanced sources, and advanced protection circuitry. It was awarded the Grand Prix of Stereo Sound, reflecting its status as a flagship-level audiophile amplifier.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 275W @ 8Ω
- Power @ 4Ω
- 500W @ 4Ω
- Amplifier Class
- A
- Minimum Impedance
- 1Ω
- Input Sensitivity
- 1.2V RMS
- Input Impedance
- 40000Ω
- Max Input Voltage
- 20.0V RMS
Analog Output
Analog signal output specifications
- THD
- 0.005%
- SNR
- 100 dB
- Output Voltage
- 70.0V RMS
- Max Output Voltage
- 140.0V RMS
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 430 × 200 × 450 mm (W × H × D)
- Weight
- 22 kg (49 lbs)
Key Specifications
Power: 275W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions