FAP-4.18 4-Channel 1800W Amplifier for Line Array System
Features：
-FAP series power amplifiers feature ultra-high power, high performance, and high stability. They are widely used in bars, audio halls, tourism, and cinemas.
-High-power, high-efficiency, high-performance Class D modular power circuit.
-Ultra-high power switching stabilized power supply.
-High-current high-frequency MOS transistor output path with up to 150A, featuring low output internal resistance.
-Capable of stable long-term operation at low impedance: 2Ω.
-Specially designed output LC circuit provides a more comprehensive, wide-range, and delicate sound.
-Aluminum plate with brushed finish, stable, beautiful, durable, and high-end in appearance.
-During soft start, it has overload, overheat, short circuit, DC output, peak voltage limit, and intelligent adjustment of peak protection.
Technology Specification
Model:FAP-4.18
Output power: Stereo Power 4x1800W 8Ω，4x3500W 4Ω；4x4500W 2Ω
Bridge power: 4500W 8Ω,5000W 4Ω
Frequency response: 20HZ-20KHZ
Total harmonic distortion:<0.01%
Input sensitivity:0.775V, 1.0V, 32dB
Conversion rate: 30V/ps
Damping coefficient: (100Hz)>500:1
Signal to noise ratio: 100dB (A)
Channel spacing:>65dB
Net weight:13.2kg
Packaging size: 580x520x185MM
Working voltage: AC 220V/50-60Hz
How to configure an amplifier for the line array system?
1、 Impedance must be matched
Impedance matching refers to the fact that the rated output impedance of the power amplifier should be consistent with the rated impedance of the line array speaker. The output impedance of conventional amplifiers generally supports 8 Ω and 4 Ω, while some amplifiers support 2 Ω. line array speakers generally have output impedance ranging from 16 Ω to 8 Ω. If two line array speakers are connected in parallel to a channel, the impedance of a 16 Ω line array speaker will become 8 Ω, and so on. Therefore, the output impedance and number of parallel connections of the line array speaker must match the output impedance of the power amplifier.
2、 The power must match
The specific standard for power allocation of power amplifiers and line array speakers is that under certain impedance conditions, the rated power of the power amplifier should be greater than the rated power of the line array speakers. The rated power of the power amplifier in conference amplification venues should be 1.2-1.5 times that of the line array speakers. If it is a situation with large dynamic effects, the rated power should be 1.5-2 times that of the line array speakers. By following this standard for configuration, it is possible to ensure that the amplifier operates at its optimal condition while also ensuring the safety of the line array speaker.
