ESX Quantum QL800.4 4-channel amplifier

Max, Mikael and 53k+ customers already with Masori sound upgrade

ESX Quantum QL800.4 4-channel amplifier

Power: 4 x 125/200 Watts RMS @ 4/2 Ω, Impedance: 2 x 400 Watts RMS bridged.
Efficiency up to 86%, Class D technology, MOSFET PWM power supply.
HPF 50-5000 Hz (CH1/2), LPF 50-5000 Hz (CH3/4), Bass Boost 0-12 dB.
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€299,00

~~€299,00~~ €299,00

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Quantum QL800.4 by ESX

The Quantum QL800.4 from ESX is a 4-channel amplifier that impresses with its advanced Class D technology and high efficiency. The audiophile-tuned components and the massive aluminum heat sink ensure outstanding sound quality. Thanks to its compact design and emission-free technology, this amplifier is ideal for tight installation conditions. Also included is a compact bass level remote control for easy power management. With an efficiency of up to 86% and a variety of protection and adjustment features, the Quantum QL800.4 offers reliable performance and versatile customization options.

Features

Advanced Class D technology with very high efficiency
Selected and audiophile-tuned components
Massive aluminum heat sink
Heavy side parts made of aluminum casting
High-level inputs with Error Protection System (EPS)
Automatic power-on function
Start/Stop Ready
MOSFET-PWM power supply
3-fold protection circuit
Compact bass level remote control

Technical Data

4-Channel Class D Digital Amplifier
4 x 125/200 Watt RMS @ 4/2 Ω
2 x 400 Watt RMS @ 4 Ω bridged
HPF 50-5000 Hz (CH1/2)
HPF 10-500 Hz (CH3/4)
LPF 50-5000 Hz (CH3/4)
Copy-Mode CH3/4 > CH1/2
Bass Boost 0-12 dB
Bandpass function
input selector switch
Dimensions 226 x 43 x 120 mm
Efficiency up to 86%

ESX Quantum QL800.4 Datenblatt

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Frequent questions about Quantum QL800.4

Welche Kanalkonfigurationen unterstützt der Quantum QL800.4 Verstärker?

The Quantum QL800.4 is a 4-channel Class D digital amplifier that offers flexible sound setup. You can operate it in 4-channel configuration with 4 x 125 watts RMS at 4 ohms or 4 x 200 watts RMS at 2 ohms. Additionally, bridging is possible to connect 2 channels into 1, allowing for 2 x 400 watts RMS at 4 ohms. This versatility allows you to customize the amplifier to your speaker system and realize both stereo and mono operation.

Wie effizient ist der ESX Quantum QL800.4 Verstärker?

The ESX Quantum QL800.4 impresses with its high efficiency thanks to advanced Class D technology. With an efficiency of up to 86%, the amplifier optimally utilizes the supplied energy and minimizes energy loss in the form of heat. This feature not only makes it more environmentally friendly but also ideal for use in vehicles where energy consumption plays a crucial role. Furthermore, the high efficiency allows the additional energy to benefit the speakers, enhancing the overall performance of the audio system.

Welche Schutzfunktionen bietet der Quantum QL800.4?

The Quantum QL800.4 from ESX is equipped with a triple protection circuit that guarantees reliable performance. These protection mechanisms include short circuit, overheating, and overvoltage protection to safeguard the amplifier and the connected components. Additionally, the integrated Error Protection System (EPS) ensures that sudden voltage spikes or interference do not cause damage at high-level inputs. These extensive protection features ensure a long lifespan for the amplifier and smooth operation even under demanding conditions.

Welche Abmessungen hat der ESX Quantum QL800.4 Verstärker?

The ESX Quantum QL800.4 stands out due to its compact design and is ideal for vehicles with limited installation space. The exact dimensions are 226 x 43 x 120 mm. These compact measurements facilitate installation and allow for flexible placement in the vehicle, even in tight installation conditions. Thanks to this handy size and emission-free technology, the amplifier integrates seamlessly and contributes to optimizing your sound system without causing space issues.

Wie lässt sich der Basspegel am Quantum QL800.4 einstellen?

The adjustment of the bass level on the Quantum QL800.4 is done via the included compact bass level remote control, which allows for easy control of the bass component. This function allows for an adjustment of the bass level by up to 12 dB, enabling you to tailor the sound to your individual preferences without having to operate the main unit. This remote control is particularly useful when a quick adjustment of the bass settings is required while driving, in order to optimize the listening experience, especially with different music genres or acoustic conditions.

Welche Audiofilter stehen beim Quantum QL800.4 zur Verfügung?

The Quantum QL800.4 amplifier features several audio filters that allow you to fine-tune the sound precisely. Among other things, there is a high-pass filter (HPF) for channels 1 and 2 with adjustable frequencies from 50 to 5000 Hz, as well as for channels 3 and 4 from 10 to 500 Hz. The low-pass filter (LPF) for channels 3 and 4 also allows settings from 50 to 5000 Hz. These filters help ensure the optimal sound image for various speaker configurations by reducing unwanted frequencies.

Was bedeutet die automatische Einschaltfunktion des Quantum QL800.4?

The automatic power-on function of the Quantum QL800.4 means that the amplifier is capable of turning itself on as soon as an audio signal is detected. This feature simplifies operation and increases convenience, as the amplifier does not need to be turned on and off manually. This convenient function is particularly useful in modern vehicles where access to hidden devices is difficult. Additionally, the Quantum QL800.4 is 'Start/Stop Ready', making it ideal for vehicles with this technology.

Welche Zutaten tragen zur hochwertigen Soundqualität des Quantum QL800.4 bei?

The high-quality sound of the Quantum QL800.4 amplifier is achieved through several factors. The selected and audiophile-tuned components play a central role. Additionally, the massive aluminum heat sink ensures effective heat dissipation, thus guaranteeing constant performance. Furthermore, the heavy side panels made of die-cast aluminum contribute to stability and durability. These technical features, combined with advanced Class D technology, are crucial in producing a clear and powerful sound from the amplifier.

Welche Installationsmöglichkeiten bietet der ESX Quantum QL800.4?

The ESX Quantum QL800.4 offers a variety of installation options due to its compact dimensions of 226 x 43 x 120 mm. Whether in the trunk, under the seat, or in hidden areas of the vehicle, the compact design allows for flexible and invisible installation. When installing, it is important to ensure adequate ventilation to maintain maximum performance. A clearly defined access area for cable connections and the bass level remote control facilitates installation and future access for convenient adjustments to the settings.

Welche Anpassungsmöglichkeiten für den Sound bietet der Quantum QL800.4?

The Quantum QL800.4 offers several sound customization options that can be individually adjusted thanks to various filters and switching functions. The bass boost allows for an increase in bass playback of up to 12 dB. Additionally, the bandpass function ensures that the frequencies can be optimally adjusted for specific types of speakers. With the input selector switch, you can choose between different audio sources, while the copy mode (CH3/4 > CH1/2) allows for easy coupling of audio settings between channels. These features provide a comprehensive way to tailor the sound to your personal preferences.

Herstellerinformation/verantwortliche Person

Audio Design Loudspeaker Sales GmbH
Am Breilingsweg 3
76709 Kronau
Germany

Authorized Managing Director:
Bruno Dammert

Contact: info@audiodesign.de

Let customers speak for us

from 9059 reviews

Jean François Tedesco

Alpine tube 12 bazooka , Un sacré caisson de basses ,

Un sacré caisson de basses , j'ai eu un 46 cm killer 454 de l'époque année 90 , qui tapait vraiment bien , mais ce tube est bien plus fort et plus ample, toutes les basses passent sans problème, avec une télécommande à réglage multiples taramps eq bass , et un ampli Machete de masori , le couple est parfait, personnellement j'en ai deux tubes et ça donne énormément, avec l'ampli 2 x 530 en 4 ohms . Parfois le plus simple est bien meilleur et plus durable .

SWT-12S4

11/29/2025

Bartosz Erber

X-10 v3 d2

Hallo. Sehr freundlicher Kundenservice und schnelle Auftragsabwicklung. Der Lautsprecher ist brandneu und unbenutzt. Ich habe ihn vor einiger Zeit gekauft, aber erst kürzlich das Gehäuse fertiggestellt. Die Parameter entsprechen den Herstellerangaben: 42,5 Liter Nettovolumen, abgestimmt auf 32 Hz und 21 mm starkes Sperrholz. Ich hatte noch nie einen 10-Zoll-Lautsprecher und wusste nicht, was mich erwartet, aber das Ergebnis hat meine kühnsten Erwartungen übertroffen. Der Bass aus einem so kleinen Lautsprecher in einem so kleinen Gehäuse ist einfach unglaublich. Um den X-10 zu kaufen, habe ich meinen DD 712f in einem 70-Liter-Gehäuse verkauft, und der war ein Volltreffer. Der Sundown ist in jeder Hinsicht besser. Ich kann diesen Lautsprecher und den Händler, bei dem ich ihn gekauft habe, wärmstens empfehlen. Beste Grüße.

X10 v3

11/18/2025

tatazz

Est arrivé à la maison très rapidement

Est arrivé à la maison très rapidement 👌🏽

Hydrogen GZHW 25XSPL

11/13/2025

Anonym

.

Geht echt gut und leicht zum einstellen

GPX2200.1D

11/12/2025

Georges, Alexander, Vainohoarii NAGLE

Très satisfaisant.

Bonjour, je reçu le colis bien emballé.
Je recommande vivement, la livraison est gratuite et rapide, je recommanderai sûrement encore chez Masori.

RS-YS12

11/10/2025

SPYRIDON D.

Bought again

Bought again. Great price, fast delivery, nice !

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11/06/2025

Arthur Mol

Perfect sound, I bough 2 pairs for the door and

Perfect sound, I bough 2 pairs for the door and the difference between these and the stock ones are huge

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11/03/2025

christopher Martinez

Deaf bonce

Très bonne qualité
Envoie rapide et soigné
Je recommande

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Preis/Leistung Qualität top!

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Anonym

Top Upgrade für Canton System

Ich habe den Woofer in meinem Skoda Octavia 3 mit Canton Soundsystem eingebaut.
Der Einbau war Plug & Play, alles passt perfekt ohne Anpassungen.
Im Vergleich zum originalen Canton Subwoofer spielt dieser deutlich stärker, präziser und mit mehr Druck.
Ich kann den Woofer jedem empfehlen, der mehr Bass aus dem Canton-System herausholen möchte – lohnt sich absolut!

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