The dBTechnologies ES503 is a portable column PA stereo system that blends high-performance audio with user-friendly features, making it ideal for solo artists, small bands, DJs, or presenters. Compact yet powerful, it offers a 1000-watt peak amplifier and integrates a digital mixer with Bluetooth connectivity, making it a complete sound solution in one package.
This system includes two slave satellite speakers, each equipped with four 3-inch neodymium full-range drivers, and a 12-inch active subwoofer housing the amplifier and control section. The column array design uses Logarithmic Curved Column Array technology to deliver wide horizontal coverage and asymmetrical vertical dispersion, ensuring excellent sound distribution for both seated and standing audiences.
One of the most versatile systems in its category, the ES503 supports multiple configuration modes. In mono mode, the satellites stack together on a single pole above the subwoofer. In stereo mode, each satellite is placed separately on tripods or mixed with one on a pole and one on a stand. A double column mode allows one ES503 to control a second system via a built-in balanced output, with complete management from the master unit’s OLED display.
The subwoofer cabinet, made of birch plywood with a scratch-resistant coating, houses the Digipro G3 Class-D amplifier and a 3-channel mixer. The mixer features combo XLR/jack inputs for microphones or instruments, and a built-in Bluetooth module to wirelessly stream audio from mobile devices. Rear panel outputs include dual Speakon connectors and a balanced XLR mix out.
Lightweight, stylish, and road-ready, the ES503 offers premium performance and outstanding adaptability in a compact and professional form factor, making it a favorite for mobile entertainers and live performers.
Features:
Compact and portable stereo PA system with 1000W peak power
Two 4×3-inch neodymium top speakers and one 12-inch subwoofer
Digipro G3 amplifier with advanced DSP and presets
Integrated 3-channel mixer with Bluetooth audio streaming
Logarithmic Curved Column Array for wide, clear sound coverage
Multiple configuration modes: mono, stereo, and double column
OLED display for system control and setup
Scratch-resistant birch plywood subwoofer cabinet
Easy transport with side handles and lightweight tops
Specifications:
| Category | Specification |
|---|---|
| Speaker type | 3-amped stereo system with two tops and one subwoofer |
| Frequency response (-10 dB) | 37 – 15,000 Hz |
| Maximum SPL | 121 dB |
| Mid-high drivers | 8 x 3-inch neodymium |
| Low frequency driver | 1 x 12-inch |
| Dispersion (H x V) | 95° x 65° |
| Amplifier technology | Digipro G3 |
| Amplifier class | Class-D |
| Power amp peak | 1000 W |
| DSP controller | 24-bit / 48 kHz |
| Presets | Factory + user defined |
| Limiter | Dual active peak, RMS, thermal |
| Crossover frequency | 206 Hz |
| Mic/instrument input | 1 x XLR/jack combo (balanced/unbalanced) |
| Line inputs | 2 x XLR/jack combo (balanced/unbalanced) |
| Media channel | Built-in Bluetooth receiver |
| Mix output | 1 x XLR balanced output |
| Subwoofer housing | 15 mm birch plywood, black painted |
| Top speaker housing | Polypropylene PP |
| Subwoofer handles | 2 x side handles |
| Top speaker dimensions | 95 x 360 x 137 mm (3.74 x 13.98 x 5.39 in) |
| Subwoofer dimensions | 465 x 400 x 430 mm (18.3 x 15.7 x 16.9 in) |
| Top speaker weight | 1.9 kg (4.19 lbs) |
| Subwoofer weight | 16.4 kg (36.16 lbs) |
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