Produit disponible sous 6 jours.
SKU: QL500.1
Category: Amplifiers and DSP, ESX, Home Page, Mono Amplifiers - Maximum Power for Your Subwoofers
Vendeur:ESX

ESX QL500.1 – Mono Class D Digital Amplifier 500W RMS
Full description
The ESX QL500.1 , from the QUANTUM QL range, is a Class D digital mono amplifier that combines compactness , power and energy efficiency . Designed for installations where space is limited, it offers exceptional performance despite its small size. It incorporates the latest innovations in Class D technology , with audiophile components selected for faithful and detailed sound reproduction.
With a power of 300W RMS at 4Ω or 500W RMS at 2Ω , this mono amplifier is perfectly suited to power a subwoofer while maintaining an excellent low frequency response . It has several settings, such as a Subsonic Filter from 10-40 Hz , an LPF from 40-150 Hz , a Bass Boost from 0 to 18 dB and an adjustable Phase Shift from 0 to 180°.
The ESX QL500.1 is equipped with a triple protection system to ensure safe use and is Start/Stop Ready . Its solid aluminum chassis allows for optimal heat dissipation for long-term reliability . It also includes a remote bass level adjustment for easy and convenient sound customization.
This amplifier is the ideal choice for users looking for a powerful and compact solution for their subwoofers , with tailor-made settings and maximum efficiency .
Main features
- Class D mono amplifier with high efficiency (up to 93%)
- Power of 300W RMS @ 4Ω or 500W RMS @ 2Ω
- MOSFET-PWM technology for maximum efficiency and increased stability
- Adjustable filters : Subsonic 10-40 Hz and LPF 40-150 Hz
- Adjustable Bass Boost from 0 to 18 dB for dynamic and powerful sound
- Adjustable phase shift from 0 to 180°
- High-level inputs with EPS® (Error Protection System)
- Automatic ignition function and Start/Stop compatibility
- Bass level adjustment remote control included
Technical specifications
Characteristic | Details |
---|---|
Kind | Class D mono amplifier |
RMS power | 300W @ 4Ω | 500W @ 2Ω |
Subsonic Filter | 10 - 40 Hz |
Low-pass filter (LPF) | 40 - 150 Hz |
Bass Boost | 0 - 18 dB |
Phase Shift | 0 - 180° |
Efficiency | Up to 93% |
Dimensions | 226 x 43 x 120 mm |
Package Contents
- 1 x ESX QL500.1 Amplifier
- Compact bass adjustment remote control
- Installation Manual
Additional accessories (sold separately)
- High performance power cables
- Shielded RCA cables
- Compatible subwoofers
The ESX QL500.1 is a high- power , exceptionally efficient Class D mono amplifier designed for subwoofer installations where space is limited, with precise adjustments and easy bass control .

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We deliver to mainland France and several European countries, directly from our warehouse in France.
Delivery Times
Delivery times vary depending on the product and destination:
- Metropolitan France : Generally, 4 to 8 working days after order processing.
- Europe : Approximately 5-15 business days depending on destination and local shipping conditions.
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- Return Procedure : Please contact our customer service via our "We're here to help" page for return instructions. Return fees may apply depending on the circumstances.
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