For applications where a single channel high power amplifier with ultimate reproduction quality is required the FM 115 is the absolute choice. The FM 115 is concepted for speaker systems that demand an amplifier that can effortlessly provide high output voltage and at the same time very high output current. Thanks to this singular capability (amplifiers usually either provide high output voltage or high output current but not both at the same instant) it drives any speaker in an unparalleled manner.
The FM 115 employs complete Resolution Series technology and uses advanced true balanced Class A stages combined with the world's best amplifier and speaker protection systems.
A new feature unique to the FM 115 uses a unique new circuit that detects and eliminates any potential very low level distortion. Furthermore, it uses a new proprietary true balanced input stage which automatically recognises if the input signal is balanced, pseudo-balanced or unbalanced and converts these signals to true balanced.
Minimum Power Output:
operating with music or continuous toneburst:
550 Wpeak into 8 Ohm
1000 Wpeak into 4 Ohm
1800 Wpeak into 2 Ohm
275 WRMS into 8 Ohm
500 WRMS into 4 Ohm
900 WRMS into 2 Ohm
Max. Output Voltage:
Max. Output Current:
Unlimited repetitive peak output current. More than 35 A continuous. No output or DC fuses, absolutely no form of current-, voltage- or any other kind of limiting.
0,005% THD, no higher order harmonics Bandwidth including Input Filter:
Less than 1 Hz to 60 kHz; if required, internally settable to any frequency between 1 kHz and 60 kHz (Low-Pass) and 1 Hz to 1 kHz (High-Pass).
Risetime at Full Power -3db:
Hum and Noise:
better than -100 dB (20Hz-20kHz).
Proprietary electronically balanced discrete enhanced class A circuitry, non-polarized, floating ground, non-inverting or inverting mode. Optimal performance with either balanced or unbalanced (single-ended) sources. Unbalanced sources are automatically balanced right at the input of the FM 115.
1.2 V RMS for full output
At all level settings from balanced and unbalanced sources:
Input Stage Common Mode Rejection:
100 dB typically, better than 95 dB at 50 Hz, even better at other frequencies.
Maximum Input Level:
+20 dBm (20Vpp)
No minimum impedance.
The amplifier is designed for 1 Ohm to 10’000 Ohm systems.
It can drive any speaker impedance (even below 1 Ohm) with dynamic (music) signals without any limiting, compression or other negative effects on the audio signal.
Despite this, the amplifier is fully protected against short circuits, open circuits and all other adverse conditions via unique onboard circuitry that continuously surveys all important parameters.