dB Technologies ES503 3-Amped Stereo System

dB Technologies ES503 3-Amped Stereo System

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dB Technologies ES503 3-Amped Stereo System

ES503 is a portable 3-amped stereo sound system composed by two passive tops and one 12” subwoofer. The sub hosts a 1000W power amp module with auto-range PSU and a 3-channels mixer with Bluetooth® connection. A powerful DSP – controlled through an advanced user-interface with an OLED display – manages both the coverage of the entire system and all functions of the mixer, making the ES503 a real gem in terms of sound performance and versatility.


Acoustical data

  • Frequency Response [-10dB]: 37 - 15.000 Hz
  • Max SPL: 121 dB
  • MF - HF: 8x 3"
  • Type MF - HF: Neodymium
  • LF: 12"
  • Directivity: 95x65°


  • Amp Technology: Digipro® G3
  • Amp Class: Class-D
  • Power Amp: 1000 W
  • Power Supply: SMPS with PSU Auto-range
  • Power Connection: VDE socket
  • Cooling: Convection
  • Controls: 1x OLED Display with rotary encoder w/switch 1x Audio signal monitoring LED 1x USB port (service data)


  • Controller: DSP 24 Bit/48 kHz
  • System Presets: Factory presets + User defined
  • Limiter: Dual Active, Peak, RMS, Thermal
  • Crossover Frequency LF-HF: 206 Hz


  • Mic/Instrument Channel: 1x Combo (XLR/Jack) balanced/unbalanced input
  • Line Channels: 2x Combo (XLR/Jack) balanced/unbalanced inputs
  • Media Channel: 1x Bluetooth® built-in receiver
  • Mix Output: 1x XLR balanced output


  • Housing (Subwoofer): 15mm Black Painted Birch Plywood
  • Housing (Tops): Polypropylene PP
  • Handles: 2x lateral side (Subwoofer)
  • Width (Top): 95 mm (3.74 in)
  • Height (Top): 360 mm (13.98 in)
  • Depth (Top): 137 mm (5.39 in)
  • Width (Subwoofer): 465 mm (18.3 in)
  • Height (Subwoofer): 400 mm (15.7 in)
  • Depth (Subwoofer): 430 mm (16.9 in)
  • Weight (Top): 1.9Kg – 4.19lbs.
  • Weight (Subwoofer): 16.4Kg – 36.16lbs.

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