
The Fonestar SA2-1750 is a professional stereo power amplifier from the SA2 series, designed to deliver extremely high power and sound quality with high performance and stability. It is intended for professional use in large mobile events (discos, concerts) and demanding fixed installations (auditoriums, large pubs).
Key Features & Operating Modes:
Maximum Bridge Mode Output: 1,750 W RMS @ 4 Ω (Mono)
Stereo/Parallel Mode Output:
880 W + 880 W RMS @ 2 Ω
675 W + 675 W RMS @ 4 Ω
450 W + 450 W RMS @ 8 Ω
Protection & Cooling: Features extensive protection circuitry, including soft start, temperature, short circuit, overload, clip limiter, continuous voltage, ultrasound, and RF. Cooling is provided by 2 variable speed fans.
Audio Quality: Maintains high fidelity with a flat frequency response of 20-20,000 Hz, low harmonic distortion (< 0.05%), and a high damping factor of 400.
Controls: Includes volume per channel, Stereo/Parallel/Bridge selector, Sensitivity selector, GND lift, and a 30 Hz high pass filter.
Design: Professional unit, installable in a 2 U 19" rack (rack dimensions are 483 x 89 x 488 mm depth).
| Feature | Specification |
| Max Power (Bridge/4Ω) | 1,750 W RMS |
| Max Power (Stereo/2Ω) | 880 + 880 W RMS |
| Frequency Response | 20 - 20,000 Hz |
| Distortion (Harmonic) | < 0.05% |
| Damping Factor | 400 |
| Cooling | 2 Variable Speed Fans |
| Dimensions | 2 U 19" rack (483 x 89 x 488 mm depth) |
| Weight | 17.6 kg |