(317)516-7460 
service@ampvortex.comCommercial Amplifier P52.4
$5,000.00
The AmpVortex P52.4 is a professional four-channel Class-D Commercial Amplifier designed for touring systems, live venues, stadiums, clubs and other demanding high-power audio applications. It delivers 4 × 1,300W at 8Ω, 4 × 2,600W at 4Ω and up to 4 × 2,900W at 2Ω.
Its advanced power architecture combines interleaved continuous-conduction-mode PFC technology with a high-efficiency LLC DC-DC converter, providing stable output, improved power utilization and reduced electromagnetic interference. A 384kHz sampling rate, 112dB(A) dynamic range and 0.05% typical THD+N ensure clean, detailed and powerful audio reproduction.
The P52.4 integrates PPS™ pulse-by-pulse overcurrent protection, ACL™ average-current limiting and DTS™ direct-touch thermal management for reliable operation under demanding loads. With professional status indicators, Neutrik® XLR and speakON® connectors, universal 100–240V AC input and efficient forced-air cooling, it is well suited for high-power loudspeaker and subwoofer systems.
It delivers a peak output voltage of 140V and a peak output current of 50A, with an efficiency of 92.1% at 8Ω.
Note: Power Pool™, native streaming and automation are not natively supported in P52.4.
24h ship 
1-year Warranty
UPS Delivery 
45-Day Return
Availability: 100 in stock
Technical Specifications
| Item/model | P52.4 |
| Stereo @ 8Ω | 4 × 1300W |
| Stereo @ 4Ω | 4 × 2600W |
| Stereo @ 2Ω | 4 × 2900W |
| Peak Output Current | 50A |
| Peak Output Voltage | 140V |
| Channels | 4 |
| THD+N (1kHz at 1W) | 0.05 typically |
| Dynamic | 112dB(A) |
| Frequency Response (20–20kHz AT 1W) | ±0.35dB |
| Noise Floor | 116μV(A) |
| Sampling | 384kHz |
| Idle | <65W |
| Efficiency @ 8Ω | 92.1% |
| Sensitivity & Gain | 1.40V @ 36.9dB / 33.9dB / 30.9dB |
| Input Impedance | Balanced: 9.5kΩ / Unbalanced: 4.75kΩ |
| Indicators | Fault / Clip / Load / Output / Present / Standby / Active |
| Output Connector | NEUTRIK ® speakON ® NL4-MP × 4 |
| Input Connector | NEUTRIK XLR NC3MAAV-1 × 4 / NC3FAAV2-0 × 4 |
| Power | 100–240V~, 50–60Hz |
| Chassis | Zinc-plated steel |
| Cooling | 3 silent-bearing DC fans |
| Net Weight | 8.9kg |
| Gross Weight | 11.4kg |
| Shipping Dimensions | 590 × 490 × 155mm |
Applications
- Touring and concert sound systems
- Stadiums and arenas
- Large clubs and live music venues
- Performance stages and auditoriums
- Banquet halls and event venues
- High-power loudspeaker systems
- Professional subwoofer applications
Front panel description
P52.4 Front Panel:
- FAULT: Indicates that the amplifier has entered protection mode or a fault condition. Switch off the amplifier and contact your nearest authorized service center.
- CLIP: Indicates output distortion caused by an excessive input signal or an incorrect load. Check the input signal level and connected load.
- LOADING: Indicates that a load is connected. The indicator flashes according to the output level and begins operating at approximately 0.5W RMS.
- OUTPUT: Indicates the amplifier’s output signal level. The indicator begins operating at approximately 1V RMS. If it remains off, the amplifier may be muted or not powered on.
- SIGNAL: Indicates the input signal level, similar to a pre-fader meter on a mixing console. The indicator brightness varies with the signal level and begins operating at approximately 0.07V RMS.
- A/B/C/D: Channel volume controls (gain controls), adjustable from -80dB to 0dB.
- AC: The LED illuminates when the amplifier is connected to AC mains power, indicating that the internal circuitry is live. The LED turns off when the amplifier is switched on.
- ON: Power-on indicator. The LED illuminates when the power cord is connected and the power switch is turned on, indicating that the amplifier is ready for operation.
- POWER: Power switch.
- Cooling Air Inlets: Do not block the air inlets. Clean and maintain them regularly to prevent overheating and thermal protection. On X Series amplifiers, the cooling air inlets are located in the center and on both sides of the front panel.
Outline size
P52.4 Mechanical Dimensions (unit: mm)
Advanced Protection
The P52.4 incorporates multiple protection technologies for reliable professional operation. PPS™ monitors MOSFET current pulse by pulse, ACL™ limits abnormal continuous current, and DTS™ measures temperature directly at the MOSFET thermal pad for faster and more accurate thermal protection.
These systems help protect the amplifier and connected loudspeakers during demanding high-power operation.
P52.4 Internal description
2 reviews for Commercial Amplifier P52.4
Commercial Amplifier P52.4
very well. Plenty of output and good control in the low end, even when running at higher levels for extended periods. Build quality feels solid and the front-panel indicators are clear and useful.
We tested the P52.4 with several demanding loudspeaker loads before putting it into service. Power delivery was consistent and the amplifier handled the system without any noticeable compression or instability.