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Martin audio MA5.2K
$1,000.00
The Martin Audio MA5.2K delivers sensational performance in a lightweight 1RU chassis. With up to 2,800 W per channel, protective DSP features, remote control functionality, and efficient thermal design, it’s a dependable workhorse for professional audio deployments.
Martin Audio MA5.2K – Lightweight 1U Dual-Channel Class‑D Amplifier
A high-efficiency, dual-channel amplifier delivering substantial output in a compact, rack-friendly format. Ideal for live sound reinforcement and fixed installation with remote control capabilities.
Power Output
- 4 Ω: 2,600 W per channel
- 2 Ω: 2,800 W per channel
- 8 Ω: 1,400 W per channel
- Operates at approximately 95% power supply efficiency, minimizing heat and maximizing reliability
Audio & Interface
- Interactive LCD matrix display with multi-function LED bargraphs
- Digital push-button menu navigation with smart card slot for saving/restoring amplifier settings
- Network-ready remote control and diagnostics via PC interface
- Front-panel selection for gain attenuation and max output/current limits
Protection & Cooling
- Comprehensive protection: clip limiter, thermal sensing, overload, short-circuit, DC fault
- Temperature-controlled air cooling system with intelligent fan speed control
- Soft-start sequence to prevent speaker turn-on transients
Technical Specifications
| Parameter | Value |
|---|---|
| Channels | 2 (bridgeable) |
| Output Power (4 Ω) | 2,600 W / channel |
| Output Power (2 Ω) | 2,800 W |
| Output Power (8 Ω) | 1,400 W |
| THD | < 0.05% typical |
| S/N Ratio | > 112 dBA |
| Damping Factor | > 5,000 (20–200 Hz at 8 Ω) |
| Slew Rate | ~50 V/µs |
| Gain Settings | 26 / 29 / 32 / 35 dB selectable |
| Input Connectors | Dual XLR analog (link via XLR) |
| Output Connectors | Two Speakon outputs |
| Control/Data Interface | RS‑485 via RJ45; smart card slot |
| Power Supply | 95–265 VAC, power factor corrected |
| Rack Size / Weight | 1U format, ~8 kg |
Typical Use Cases
- High-output point-source or line-array systems using Martin Audio CDD, WS, or niche loudspeakers
- Live touring and fixed installations needing compact power with DSP or external controllers
- Applications requiring remote monitoring and preset recall across multiple units
- Environments valuing high headroom, reliable speaker protection, and low idle heat
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