2 channels stereo amplifier



  • Compact professional power amplifier
  • Two inputs per channel, with built-in limiters
  • Perfect sound quality

SONOSAX FD-A100 is the most compact professional stereo amplifier created to date. This unit has 2 inputs per channel, namely 1 floating balanced input with an XLR connector and one unbalanced input with a cinch connector. In this manner, this monitoring amplifier can be connected with any source and has the advantage of being extremely practical and flexible. The output connectors take cables up to a section of 10mm2 and offer optimal contact. A limiter, which can be disconnected, wards off any deterioration of loudspeakers by clipping.

As regards the electronics of SONOSAX FD-A100, only transistors are used for sound processing, to ensure the absence of coloration, harmonic and transient distortion. All components are of professional type, as for all SONOSAX products, such as conductive plastic potentiometers, hermetic switches with gold-plated contacts, gold-plated connectors, to ensure a long life.

Despite its small size, FD-A100 compares favorably with the best amplifiers on the market, for quality of sound.


Type: balanced transformerless, XLR connectors
Impedance: 5kOhms, 20Hz to 20kHz
Nominal input level: 0dBu (0,775V RMS)

Type: unbalanced, cinch connectors
Impedance: 10kOhms, 20Hz to 20kHz
Nominal input: 0dBu (0,775V RMS)

Gain: 25dB
Output power: 2×38 Watts 8 Ohms, 2×60 Watts 4 Ohms, 2×85 Watts 2 Ohms
Output power on bridged mode: 100 Watts 8 Ohms, 120 Watts 4 Ohms (see manual)
Frequency response: ±0,02dB, 10Hz to 20kHz, -3dB at 4Hz and 500kHz
Slew rate: better than 35V/microsecond
Damping factor: better than 2000
Crosstalk: better than 80dB, 20Hz to 20kHz
THD: less than 0.02%, 20Hz to 20kHz at maximum power
Signal to noise ratio: better than 115dB, 22Hz to 22kHz
Limiter: threshold 2dB before clipping level
Overload indicator: threshold 3dB before clipping level

Input: selectable 100, 120, 220 and 240V AC, 44 to 66Hz
Dimensions: 13,4″ x 5,7″ x 2,85″ (340 x 144 x 72mm), 10lbs (4,5Kg)