ESX Quantum QM FOUR PP 4-channel amplifier

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

ESX Quantum QM FOUR PP 4-channel amplifier

4 x 52/90 watts RMS at 4/2 Ω, efficiency up to 86%.
High-level inputs, error protection system, clipping LED.
Heavy cast heatsink, automatic power-on function.
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€279,00

~~€279,00~~ €279,00

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Quantum QM FOUR PP by ESX

The Quantum QM FOUR PP from ESX is a versatile 4-channel amplifier specifically designed for plug-and-play applications. With an efficient Class D design and compact dimensions, it delivers powerful performance of 4 x 52/90 watts RMS at 4/2 Ω. The amplifier is easy to install, provided your radio has a modern quadlock connector. Notable features include a heavy cast heat sink for optimal cooling, automatic turn-on function, high-level inputs with Error Protection System, and a compact bass level remote control. Due to its robust construction and efficiency, the Quantum QM FOUR PP is ideal for amplifying factory systems.

features

Adapter cable harness for Power Quadlock control units (5 m)
Efficient Class D amplifier with ultra-compact dimensions
Heavy cast heat sink with optimal cooling properties
Automatic power-on function
High-level inputs with Error Protection System (EPS)
Start/Stop Ready
Compact bass level remote control
Cinch Inputs & Outputs (via Molex)
Clipping LED

Technical Data

4-Channel Class D Plug+Play Mini Digital Amplifier
4 x 52/90 Watt RMS @ 4/2 Ω
2 x 180 Watt RMS @ 4 Ω bridged
HPF/LPF 40 - 4000 Hz (CH1/2)
HPF/LPF 40 - 4000 Hz (CH3/4)
Bass Boost 0 / 6 / 12 dB (CH1/2)
Bass Boost 0 / 6 / 12 dB (CH3/4)
Input selection switch 2CH/4CH
Dimensions 216 x 39 x 84 mm
Efficiency up to 86%

ESX Quantum QM FOUR PP Datenblatt

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Frequent questions about Quantum QM FOUR PP

Welche Leistung bietet der Quantum QM FOUR PP an 4 oder 2 Ohm?

The Quantum QM FOUR PP from ESX delivers an impressive performance of 4 x 52 watts RMS at 4 ohms or 4 x 90 watts RMS at 2 ohms. This 4-channel Class D amplifier is optimally designed for use in various car audio setups due to its high efficiency. Regardless of the impedance used, the amplifier always ensures powerful and consistent audio performance, which is particularly beneficial when used in factory systems. With its outstanding RMS value, the amplifier provides clear and strong audio output, guaranteeing an excellent sound experience even in loud environments.

Warum ist der Quantum QM FOUR PP ein Plug-and-Play Verstärker?

The Quantum QM FOUR PP is designed as a plug-and-play amplifier because it was specifically developed for simple and quick installations. With the included adapter wiring harness for Power Quadlock control units, you don't have to go through time-consuming installation processes. The automatic power-on function also significantly simplifies operation. Thanks to its ultra-compact dimensions of 216 x 39 x 84 mm, it can be easily integrated directly into the vehicle. This allows for immediate use, promising not only time savings but also a hassle-free user experience.

Wie trägt der schwere Guss-Kühlkörper zur Effizienz des Verstärkers bei?

The heavy cast cooling body of the Quantum QM FOUR PP ensures that the heat generated during operation is effectively dissipated. The optimized cooling properties ensure that the amplifier does not overheat even under intense use and always operates within the optimal performance range. Efficient thermal management is crucial to extend the lifespan of electronic components and ensure consistent power delivery. Especially in more compact designs, as is the case with this amplifier, such cooling mechanisms are essential to maximize the efficiency of the Class D design.

Welche Frequenzbereiche können beim QM FOUR PP angepasst werden?

On the Quantum QM FOUR PP amplifier, the frequency ranges for both channel pairs CH1/2 and CH3/4 can be individually adjusted. With a high-pass and low-pass filter that can be set from 40 to 4000 Hz, the amplifier offers tremendous flexibility in sound shaping. These adjustments allow you to optimize the frequencies according to your speaker configuration and personal sound preferences. The option for a bass boost of 0, 6, or 12 dB additionally allows for targeted enhancement of the low frequencies, which is particularly beneficial for bass-intensive music.

Wie funktioniert das Error Protection System im Quantum QM FOUR PP?

The Error Protection System (EPS) of the Quantum QM FOUR PP continuously monitors the high-level inputs for potential fault conditions. This system automatically detects critical states such as short circuits or overloads and protects the internal components from damage. These protective measures significantly enhance the operational reliability of the amplifier, and any failures can be prevented. The implementation of such a system is particularly important in car audio applications, as it minimizes the likelihood of disruptions in the audio flow while simultaneously increasing the longevity of your audio systems.

Gibt es eine Möglichkeit, den Basspegel extern zu steuern?

Yes, the Quantum QM FOUR PP features a compact bass level remote control that allows you to adjust the bass level directly from the driver's seat. This external control offers the flexibility to adjust the low-frequency output at any time without direct access to the amplifier. Especially when listening to different music genres, this function can be useful for optimizing the bass. The remote control is designed to be compact, so it neither disturbs the vehicle's interior nor takes up excessive space. Its easy accessibility makes adjusting the bass level extremely user-friendly.

Wie können die Cinch-Eingänge und Ausgänge des Verstärkers genutzt werden?

The Cinch inputs and outputs of the Quantum QM FOUR PP are implemented via Molex connectors and offer a variety of connection options for audio signals from different sources. These high-quality connections ensure optimal transmission of audio signals, minimize signal loss, and thus guarantee brilliant sound results. You have the option to connect both radios and external audio devices to the amplifier, making integration into existing or new car audio systems easier. If you are looking for a flexible connection solution for your vehicle, these features provide a great option.

Welche Vorteile bietet das Class D Design des Quantum QM FOUR PP?

The Class D design of the Quantum QM FOUR PP allows for an efficiency of up to 86%, making this amplifier particularly suitable for car audio systems where efficient energy management is important. Due to the high efficiency, less heat is generated, which relieves the amplifier's cooling system and minimizes power consumption losses. Class D amplifiers are known for their compact design, allowing them to fit in small spaces, such as typical vehicle installations. These advantages make the Quantum QM FOUR PP ideal for applications where power and efficiency are crucial.

Wie lässt sich der Verstärker in verschiedenen Fahrzeugmodellen integrieren?

The Quantum QM FOUR PP is ideal for integration into vehicles that have a Quadlock connector for their audio systems. Thanks to its ultra-compact dimensions of 216 x 39 x 84 mm, it can fit into tight installation spaces. If the dimensions are compatible with the conditions in the vehicle, the installation of the amplifier can be carried out quickly and easily. In vehicles without a suitable Quadlock, adapter solutions may be used. This flexibility in application makes the QM FOUR PP an excellent choice for many common vehicle models and their sound upgrades.

Wie funktioniert die automatische Einschaltfunktion des Verstärkers?

The automatic power-on feature of the Quantum QM FOUR PP ensures that the amplifier automatically turns on and off, depending on the signal at the inputs. As soon as an audio signal is present, the amplifier is activated, ensuring simple and reliable operation. This eliminates the need for manual intervention and also protects the amplifier, as it is only in operation when necessary. This feature is particularly useful in modern vehicle environments, where comfort and functionality must go hand in hand, and supports a seamless user experience when listening to audio.

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 9062 reviews

Franco

Super guter Subwoofer

Super Subwoofer mit extrem tiefem Bass. Die Kabel sind dick und hochwertig verarbeitet. Es gibt nichts zu beanstanden. Absolut empfehlenswert.

CBP1000

12/09/2025

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 !

Mille Pro MP 165.3

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

Voce AV 6.5

11/03/2025

christopher Martinez

Deaf bonce

Très bonne qualité
Envoie rapide et soigné
Je recommande

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Tolles Produkt. Sehr hochwertig und passgenau. Passt in die hinteren Türen von meinem Passat B8 2019 perfekt.

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Tomáš hokuf

Nice

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Preis/Leistung Qualität

Preis/Leistung Qualität top!

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10/28/2025

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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