
The Fonestar FSD-4500E is a high-power, multi-channel PA power amplifier designed for fixed installations using 70V or 100V line loudspeakers, featuring high efficiency and a compact 1U rack format.
Type: 4-channel PA power amplifier.
Amplification: Highly efficient and reliable Class D amplifier circuitry.
Power Output (RMS): 4 x 400 W RMS (across 4 channels) or 2 x 480 W RMS (in grouped pairs).
Loudspeaker Output: Supports 100 V and 70 V speaker output via secure, easy-to-connect Euroblock connectors.
Audio Quality:
Response: 20–20,000 Hz.
S/N Ratio: >95 dB.
Distortion (THD+N): <0.04% (1 kHz).
Dynamic Range: >105 dBA.
Inputs:
4 x Balanced/Unbalanced Aux Lines via Euroblock connectors (1 V RMS, 0 dBV).
1 x Emergency/Test Input via Euroblock (with priority/contact closure test function).
Dante® Integration (Optional): Supports DANTE functionality via the optional FSD-44D DANTE expansion module (sold separately).
Installation & Design:
Format: 1 U 19" rack mountable (483 x 44 x 380 mm depth).
Cooling: Forced ventilation with variable speed according to temperature.
Weight: Light, weighing only 6.4 kg.
Protection: Comprehensive protection against overload, short circuit, open circuit, temperature, ultrasound, and radio frequency.