The Audac EPA502 is a high-performance dual-channel Class-D amplifier delivering up to 2 x 500W at 4Ω in a compact 1U rackmount format. Designed for both fixed installations and mobile applications, the EPA502 combines powerful output, energy efficiency and advanced protection circuitry within a lightweight steel chassis.
Featuring convection cooling, automatic standby functionality and professional connectivity, the EPA502 provides dependable, maintenance-free operation for demanding commercial and live audio environments.
Utilising advanced Class-D amplification technology, the EPA502 delivers powerful, clean and stable audio reproduction with excellent efficiency and minimal heat generation. Output ratings include:
A wide frequency response of 20Hz – 20kHz (±3dB), THD+N below 0.1% and a signal-to-noise ratio greater than 90dB ensure accurate, distortion-free audio across the full frequency spectrum.
Energy Star certified, the EPA502 automatically switches to standby mode after approximately 30 minutes without signal detection, consuming just 0.7W in standby. This makes it particularly suitable for commercial and permanent installations where reduced energy consumption is important.
Comprehensive internal protection circuitry safeguards the amplifier against:
The fully convection-cooled (fanless) design ensures completely silent operation while reducing maintenance requirements and increasing long-term reliability.
Balanced XLR input connectors with male link-through outputs allow simple daisy-chaining of multiple amplifiers. Speaker outputs are provided via SpeakON-compatible connectors and 2-pin Euro terminal block connectors for flexible installation options.
| Specification | Details |
|---|---|
| Continuous Power @ 4Ω (Stereo) | 2 x 500 W |
| Continuous Power @ 8Ω (Stereo) | 2 x 300 W |
| Bridge Mode @ 8Ω | 1000 W |
| Frequency Response | 20 Hz – 20 kHz (±3 dB) |
| Signal-to-Noise Ratio | > 90 dB |
| THD+N (@1kHz) | < 0.1% |
| Power Supply | 100–120V / 220–240V AC, 50–60Hz |
| Power Consumption | 426W (0.7W Standby) |
| Inputs | Balanced XLR (Female) with Link Output |
| Outputs | SpeakON Compatible & 2-pin Euro Terminal Block |
| Dimensions (W x H x D) | 482 x 44 x 330 mm |
| Weight | 4.7 kg |
| Mounting | 19" Rackmount (1U) |
| Construction | Steel |
| Colour | Black |
The Audac EPA502 is ideal for bars, restaurants, educational facilities, corporate installations, clubs, retail environments and live venues requiring powerful, reliable and energy-efficient amplification in a compact rackmount format.
Q: Is the EPA502 fan-cooled?
A: No, it uses a convection-cooled (fanless) design for silent, maintenance-free operation.
Q: Can it operate in bridge mode?
A: Yes, it delivers up to 1000W at 8Ω in bridge mode.
Q: Does it support multiple mains voltages?
A: Yes, it supports 100–120V and 220–240V AC (50–60Hz). Ensure the correct voltage setting or model variant is used for your region.
