FBT AX 800

A Class H Amplifier Designed for Sound Reinforcement and Installations

This type of 2-channel Class H amplifier belongs to the family of power amps designed to offer an excellent balance between efficiency, dynamics, and bass handling. The goal is clear: to deliver stable power to drive passive speakers in sound reinforcement contexts while limiting heat buildup and maintaining a comfortable margin during level peaks.

With its 482 mm width format, it naturally fits into a rack-oriented configuration, convenient for both mobile gigs and fixed installations (halls, places of worship, bars, event spaces), where connection accessibility and reliability are as important as power.

Who Is It For and What Are Its Uses?

This amplifier is aimed at bands, DJs, service providers, and technicians looking for a stereo amplification solution that is easy to implement for front-of-house or monitor passive speakers. It is also very suitable for installations that require a robust amplifier with standardized connectivity.

The Bridge mode offers real flexibility: it allows powering a single more demanding load (for example, a speaker requiring more power) while maintaining a rational system approach without multiplying amplifiers.

Features and Highlights for Smooth Integration

2-Channel Architecture and Bridge Mode

In stereo use, each channel has its own amplification to drive two passive speakers. When the system demands it, switching to mono Bridge mode combines the power of both channels to reach 700 W RMS at 8 ohms. This configuration is useful when you want to focus energy on a single speaker or line while keeping clear wiring on the output side.

Professional Audio Connectivity: XLR and Speakon

The connectivity is designed for sound reinforcement audio chains: 2 XLR inputs and 2 XLR "link" outputs facilitate signal distribution to another amplifier or processor without any workaround. On the speaker side, the 3 Speakon outputs (CH1, CH2, and Bridge) provide a reliable connection, suitable for high power and frequent setups.

Precision and Control: Tight Bass, Preserved Dynamics

The frequency response from 20 Hz to 40 kHz guarantees wide reproduction, useful for both music and speech. The damping factor greater than 400 (at 1 kHz under 8 ohms) contributes to better speaker control, especially in the low spectrum: bass remains cleaner, less "muddy," and transients are better maintained.

With a signal-to-noise ratio above 100 dB and distortion below 0.03 percent, the amplifier aims for clean amplification, limited hiss, and signal fidelity, which is appreciated when working with high-quality sources and mixes.

Thermal Protection: Safety for Continuity

In intensive use, stability is essential. The thermal protection helps secure operation by limiting risks related to overheating, especially during long sessions or in poorly ventilated environments. This is a real plus for gigs, where the primary expectation is that the amplifier "holds up" without surprises.

Technical specifications