The dB Technologies ES503 is a compact active 2.1 column PA system delivering remarkable sound power and clarity in an ultra-portable design. Ideal for solo performers, DJs, corporate events, and small live applications, the ES503 combines advanced DSP technology, flexible configurations, and convenient Bluetooth® streaming. Despite its small size, the system provides a rich, full-bodied sound with excellent coverage, making it one of the most versatile portable PA solutions in its class.
Features:
- Active 2.1 system with subwoofer and two column satellites
- 1000 W RMS / 2000 W Peak Class-D Digipro amplifier
- 12″ bass reflex subwoofer with 2.5″ voice coil
- 8 × 3″ neodymium full-range transducers (4 per column)
- 24-bit / 48 kHz DSP with FIR filters and limiter protection
- Configurable in three modes: Mono, Stereo, or Dual Mono
- Built-in 3-channel digital mixer with Mic/Line and stereo inputs
- Bluetooth® stereo audio streaming
- Smart linking system for column connection (no cables required)
- Four DSP presets: Live, Club, Playback, and Monitor
- Compact design for easy transport and fast setup
Specifications:
The frequency response ranges from 37 Hz – 15 kHz, producing a maximum SPL of 121 dB. The system’s Class-D Digipro amplifier ensures efficient, distortion-free performance. The onboard digital mixer provides two combo XLR/TRS inputs, one stereo mini-jack input, and an XLR link output. DSP processing allows EQ adjustments, delay, and limiter control, while Bluetooth® support enables wireless music playback directly from smart devices.
Cabinet:
The subwoofer cabinet is made from birch plywood with a robust black textured finish, while the column satellites feature lightweight aluminium enclosures. The innovative smart mounting system allows the columns to connect directly to the subwoofer via pole extensions, ensuring quick assembly without external cabling.
