(B-Stock) dB Technologies ES 503 speaker set

B-stock information

Warranty:	This product comes with a 3-year warranty.
Complete	Yes
Original packaging	Damaged
Condition of product	Traces of use (no damage/scratches)
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(B-Stock) dB Technologies ES 503 speaker set
Product no: 5000-0027-0459 Bax Music Warranty: This product comes with a 3-year warranty.

General

The Italian brand dB Technologies have done it again by coming up with a truly remarkable speaker system. This is the EX 503, which consists of a subwoofer and two satellite speaker cabinets that can be used together. Each speaker is equipped with four 3-inch woofers and can function as a line-array configuration for excellent audio projection. Combine the speakers with the sub, and you've got a powerful line-array module that's suitable for a large audience. The low range is provided by the subwoofer, which has a 12-inch woofer and a 100-watt amplifier. This set is portable and easy to assemble, making it particularly suitable for entertainers.

dB Technologies ES-503 speaker system: built-in mixer

Upon closer inspection, the rear of the subwoofer features no fewer than three combined XLR/jack inputs for a microphone or a line signal. Thanks to the integrated DSP engine, you can adjust the audio to your heart's content. This DSP engine can also be adjusted to the acoustics of the venue by means of a number of presets. It also has an additional output for connecting another set. A unique feature of the ES-503 is the presence of a Bluetooth module so you can pair your mobile device and stream your favourite music to the set wirelessly. The subwoofer is made of wood and the speakers are made of top-quality plastic; all components are well-constructed and built for the road.

Tips or comments about this product

Please note: the pictured stands are sold separately.

Specifications

Product features

Playback options	Bluetooth, line in
Complete	Yes
Sustainable product	not specified
Weight	15 - 19.9 kg
Colour	black
Original packaging	Damaged
RMS power in watts	500 - 749 W
Condition of product	Traces of use (no damage/scratches)
Analogue audio input type	balanced line in (TRS jack), microphone input (XLR), Hi-Z instrument input (TS jack)
Analogue audio output type	balanced mix out (XLR)

Weight and dimensions including packaging

Weight (incl. packaging)	21,2 kg
Dimensions (incl. packaging)	63,5 x 58,5 x 53,0 cm

Product specifications

sound set
with built-in Bluetooth Stereo receiver
components:
- subwoofer
  - woofer: 12 in
  - amplifier: 1000 W
  - connectors:
    - 3x XLR/jack input
    - 1x XLR output
    - 2x SpeakOn output
  - cabinet: wood
  - cooling: convection
  - mixer: control via DSP
  - Bluetooth module for streaming
  - dimensions: 465 x 400 x 430 mm
  - weight: 16.4 kg
- 2x satellite speakers
  - speaker: 4x 3 in
  - connector: SpeakOn input
  - housing: polypropylene
  - dimensions: 95 x 137 x 360 mm
  - weight: 1.9 kg
frequency response: 37 Hz - 15 kHz
crossover frequency LF-HF: 206 Hz
max. SPL: 121 dB
nominal coverage: 95 x 65°
stand flange diameter: 25 mm
included accessories: 2x distance rod

Write a review

JC Unique. November 27, 2019

Wrote the following about dB Technologies ES 503 speaker set

This is now my second ES 503. As others have pointed out, a real strength of this system is being able to run true stereo as well as 'dual mono' with a second unit. The flexibility is essential for me having to set up for small venues as well as larger (sometimes having to split the system across two rooms). Having come from running a similar system using and active sub and passive satellites but with a 15" sub driver with an inbuilt Class A amp, the weight saving is incredible. Although there's not quite as much depth with a 12" driver compared to a 15", the 12" on the ES 503 feels punchier (which works well for me using the system mostly for playing house music). The overall sound quality is excellent and if anything punches well when driven quite hard. I was worried about the frequency response topping out at 15k, but needn't have worried - This is a PA system, not a studio monitoring set-up and most people can't hear above 13k !

This system did succeed in vibrating the beer glasses off the shelves playing at a local pub.

What I didn't like very much (but can live with it), is navigating the settings but once set, the job is done. I'm not hugely keen on where the outbound audio connections are made at the bottom of the back panel (I'm getting old - once bent down I can't get up) The speaker pole diameter is quirky, but then again, the slimmer stands are more elegant than the more common 35mm ones.

I would wholeheartedly recommend this PA, particularly if you need to be flexible in how you set up. Two sets are perfect for just about any configuration from a small pub with 20 people up using a single system in stereo, to medium sized venues using a pair of ES 503's catering for perhaps 200. I'd also recommend getting the bags. For all the quality sound and flexibility, the units will benefit from a bit of protection.

Steve R. October 18, 2017

Wrote the following about dB Technologies ES 503 speaker set

Very pleased with this product. It is the only quality line array technology system on the market at this price break that can be configured in stereo. As a keyboard player I've come to know just how bad your £2,000 digital piano can sound in mono. Most mono systems simply sum the left and right signals, this produces some horrible nasal sounds, due to the phase cancellations this causes. The Bose L1 and the JBL EON 1 do this. The ES503 sounds as good as these systems when configured as a mono line array. When configured in stereo the ES503 blows them away totally! The output power of the ES503 is better than either the L1 Model II and the JBL EON 1. The bass performance from the 12" speaker is very good. Infact the ES503 has a very coherent and musical sound quality that enables you to hear the pitches of instruments very clearly. I've used it live as a PA for our duo (2 Vocals, Keys and Pedal Bass) and for a band rehearsal 3 Vocs, Guitar, Bass, Keys and Electronic Drums. Both via Behringer X18 Mixer. It works very well for smaller venues. The only issue I've had is the built in compressor limiter seems to be linked to the input level rather than the output level of the mixer. So if you don't keep the input gains down you get compression even if the overall sound level is quite low. I've found setting the L and R inputs to about -4dB solves this. Otherwise very happy!

Reviews from other countries

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Gérard Crals March 27, 2025

Wrote the following about dB Technologies ES 503 speaker set

Heb deze set nu al een aantal keren gebruikt bij feestjes voor muziek te draaien en bands uit te versterken dit is mij prima bevallen.
Klein in formaat maar krachtig in prestatie geluid opbrengst en klank top product.

Gérard Crals December 20, 2024

Wrote the following about dB Technologies ES 503 speaker set

Ben ook zeer tevreden over Bax/shop dit product werd snel geleverd zoals afgesproken.
De ES 503 set van dB technologies werkt uitstekend nu ik ben er tevreden mee.

Gérard Crals July 31, 2024

Wrote the following about dB Technologies ES 503 speaker set

Ik ben zeer tevreden met de prestaties van deze luidspreker set van dB.
Ga ze nog goed uittesten in verschillende omstandigheden ben benieuwd.