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ESX

Quantum QS-TWO

2-channel amplifier

1 Review

149,00€
149,00€ 149,00€
incl. VAT , possibly plus shipping

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Highlights

  • With an output of 2x95 watts RMS at 2 ohms, it offers impressive performance.
  • Stable support for speakers with 4.3 or 2 ohm impedance.
  • High efficiency of 90% saves energy and increases efficiency.
Seen more cheaply Personal Offer
brand: ESX
Delivery time:
Available for delivery in 1-4 days
Number:
Piece
Watt RMS per channel:
95
Amplifier Type:
Class D
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149,00€
149,00€ 149,00€

With the Quantum QS-TWO, ESX presents a new generation of 2-channel amplifiers. In addition to its compact size, which is 30% smaller than the previous model, the QS-TWO impresses with a remarkable power output of up to 2x95 Watts RMS at 2 Ohms. Its ability to drive speaker systems with 4, 3, or 2 Ohm impedance while consistently delivering stable performance particularly highlights this amplifier. A special feature is the high efficiency of up to 90%, which not only saves energy but also relieves the vehicle's electrical system. Whether for demanding high-end sound in HD audio or simple connectivity via an ISO wiring harness - the Quantum QS-TWO from ESX is a powerful 2-channel amplifier that excels in many areas.

Features

  • 2-Channel Class D Nano Digital Amplifier
  • 380 Watt Max. Output Power
  • 2 x 52/95 Watt RMS @ 4/2 Ohm
  • 1 x 190 Watt RMS @ 4 Ohm bridged
  • Highpass/Lowpass switchable @ 80 Hz
  • Ultra-low distortion factor THD+N @ 5W/RMS < 0.007%
  • Frequency response 10 Hz to 60 kHz
  • Perfect for HD Audio
  • 2-channel RCA line out for e.g. active subwoofers
  • High-level inputs with EPS
  • Automatic power-on function
  • Up to 90% efficiency
  • Dimensions 70 x 35 x 90 mm
The Quantum QS-TWO from ESX offers impressive performance values at different impedances. At an impedance of 2 ohms, it achieves an RMS power of 2 x 95 watts, while at an impedance of 4 ohms it provides 2 x 52 watts RMS. In bridged mode at 4 ohms, it even delivers 1 x 190 watts RMS. This flexibility makes it ideal for various speaker systems and underscores its suitability for demanding audio applications. Its compact design and high efficiency of up to 90% also make it particularly energy-efficient, relieving the vehicle's electrical system.
The Quantum QS-TWO is 30% smaller than the previous model, with dimensions of only 70 x 35 x 90 mm. This compact size allows for easy integration into most vehicle interiors without taking up valuable space. Despite its small format, the amplifier offers remarkable performance data and is capable of delivering high RMS power. Use these compact dimensions to your advantage to take advantage of flexible installation options – even in limited vehicle spaces, it is an ideal companion for top-notch sound systems.
The Quantum QS-TWO from ESX impresses with sound quality that is particularly enhanced by a frequency response of 10 Hz to 60 kHz, improving both standard audio and HD audio applications. Its ultra-low total harmonic distortion plus noise (THD+N) of less than 0.007% at 5W/RMS minimizes distortion, allowing it to reproduce even fine sound details accurately. With an impressive efficiency of up to 90%, it handles deep tones and ensures excellent music playback. Especially for music lovers who value crystal-clear sound, this 2-channel amplifier offers a convincing performance.
The Quantum QS-TWO from ESX makes it easy for you to connect to various systems through its diverse options. It features high-level inputs with EPS and an automatic power-on function, making the connection to factory audio systems particularly straightforward. You can also easily control low-frequency subwoofers via the 2-channel RCA line out. The switchable high-pass and low-pass filters at 80 Hz additionally give you the opportunity to further optimize the sound. Use these features to effectively integrate the amplifier into your existing audio system.
A high efficiency of up to 90% with the Quantum QS-TWO from ESX means that the amplifier converts the energy it consumes into power extremely efficiently. This not only saves energy but also reduces heat generation and significantly relieves the electrical system of your vehicle. Especially in modern vehicles with sensitive electrical systems, such an efficient device can be advantageous as it treats the vehicle battery more gently while still providing strong audio playback performance. The miniaturization and low energy consumption make the amplifier the ideal choice for efficient car Hi-Fi applications.
The Quantum QS-TWO from ESX is equipped with switchable filter functions: a high-pass filter and a low-pass filter, both operating at 80 Hz. These functions allow for targeted adjustment of the frequency range and filtering out unwanted frequencies. This is especially useful when you want to adapt the sound to your speaker system or specific acoustic preferences. For example, you can suppress disturbing bass frequencies in small speakers using the high-pass filter. The precise tuning provided by these filter options makes the device particularly flexible to use.
The THD+N value (Total Harmonic Distortion plus Noise) of the Quantum QS-TWO from ESX is below 0.007% at 5W/RMS, indicating an extremely clear sound reproduction. A low THD+N value means that there are only very slight distortions and interferences in the audio signal, resulting in music being reproduced with extreme detail and clarity. This is particularly important for audiophiles who value the highest sound precision, as there is almost no audible loss of quality. This technical finesse is a standout feature of this Class D Nano Digital Amplifier.
The Quantum QS-TWO from ESX is compatible with most vehicle models due to its small dimensions and universal connection capabilities. The integrated high-level inputs with EPS and the automatic power-on function make it particularly easy to connect. However, if you want to install it in older or particularly compact vehicle models, check the installation options based on the dimensions of 70 x 35 x 90 mm. This small size makes it easier to place under seats or in the trunk. Compatibility depends less on the car brand and more on the available space and connection options.
The installation of the Quantum QS-TWO from ESX in the car is relatively simple due to its compact structure and versatile connection options. First, it is necessary to choose the ideal placement with dimensions of 70 x 35 x 90 mm, such as under the seat or in the trunk. The high-level inputs are designed for seamless integration into existing system interfaces. Make sure that the wiring is done properly to ensure optimal signal flow. The easily accessible ISO wiring harness simplifies the work, especially in conjunction with modern audio systems.
The Quantum QS-TWO from ESX is ideal for HD audio due to its wide frequency response of 10 Hz to 60 kHz and low distortion. The exceptionally low THD+N value of less than 0.007% ensures that even fine details are reproduced clearly and without distortion. Additionally, the ability to switch high-pass and low-pass filters at 80 Hz provides further flexibility for fine-tuning. The compact design and efficiency of up to 90% also contribute to outstanding audio playback, making this amplifier the preferred choice for audiophiles seeking excellent sound quality with high efficiency.

Audio Design Loudspeaker Sales GmbH
Am Breilingsweg 3
76709 Kronau
Germany

Authorized Managing Director:
Bruno Dammert

Contact: info@audiodesign.de

Customer Reviews

Based on 1 review
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Nebojsa V.

A good product. For the money I paid excellent. Thank you very much.

Product Specifications

Manufacturer

ESX

Product type

2-channel amplifier

Features

  • Highlights

    • With an output of 2x95 watts RMS at 2 ohms, it offers impressive performance.
    • Stable support for speakers with 4.3 or 2 ohm impedance.
    • High efficiency of 90% saves energy and increases efficiency.

  • Uvp

    149

weight

0.32 kg

Technical data

Watt RMS per channel

95

configurators

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Your advantages with Masori

Buy online at a great price: High performance and compact design of the ESX Quantum QS-TWO

The ESX Quantum QS-TWO 2-channel amplifier, with 2 x 95 watts RMS at 2 ohms, is ideal for purchase at masori.de, backed by the Masori Lowest Price Guarantee. Despite its compact dimensions (70 x 35 x 90 mm), it impresses with a maximum output of 380 watts. Its high efficiency of up to 90% saves energy and reduces the load on the vehicle's electrical system. With a switchable high- and low-pass function at 80 Hz and a frequency response range of 10 Hz to 60 kHz, the amplifier is ideal for HD audio. Its compact size, 30% smaller than its predecessor, makes it space-saving and flexible in installation.

Clear sound quality: High efficiency and minimal distortion of the ESX QS-TWO

The ESX QS-TWO offers excellent audio clarity with efficiency of up to 90% and ultra-low THD+N at 5W/RMS &lt; 0.007%. The high efficiency meets the standards of modern Class D amplifiers, ensures efficient power utilization, and reduces heat generation, ensuring stable long-term use. The remarkably low THD means virtually no distortion even at high power, which is crucial for enjoying high-resolution audio files.

Compact design and flexible installation options for versatile use

Measuring just 70 x 35 x 90 mm, the ESX Quantum QS-TWO is approximately 30% smaller than its predecessor, making it ideal for tight undercar spaces. This compact design offers a wide range of installation options, especially in vehicles where space is at a premium. Despite its small size, the amplifier doesn't compromise on performance or functionality, supporting a wide range of high-power applications.

Optimized integration: ISO wiring harness and automatic switch-on function

The ESX QS-TWO offers simplified system integration with its integrated ISO wiring harness and high-level inputs. The automatic power-on function ensures seamless entry and exit into the driving experience without requiring any further manual intervention. These features make the QS-TWO particularly user-friendly and compatible with a wide range of vehicle systems, including older models without dedicated amplifier connections.

Detailed frequency control: Highpass/Lowpass filter switchable at 80 Hz

A special feature of the ESX Quantum QS-TWO is the switchable high- and low-pass filter setting at 80 Hz. These filters allow specific frequency bands to be emphasized or attenuated, enabling precise audio adjustment to individual listening needs. This ensures clean and clear separation of audio frequencies and prevents unwanted frequencies from degrading the audio quality. For audiophiles, this flexibility is essential for precisely tuning the sound in the car.

Powerful audio: 2-channel Class D Nano digital amplifier for precise sound

The ESX QS-TWO is a 2-channel Class D Nano Digital amplifier that stands out with its digital amplifier technology. Class D amplifiers are known for their high efficiency and power output. This technology minimizes power loss in the form of waste heat and ensures improved sound quality compared to conventional amplifier types. Stability with 2 ohm and 4 ohm speaker systems offers flexibility in the selection and installation of the speakers to be driven.

Adaptability: Supports different impedance configurations

The ESX Quantum QS-TWO supports speaker systems with impedances of 4, 3, and 2 ohms, making it a versatile solution for a variety of car hi-fi setups. The amplifier's ability to deliver stable performance at different impedances demonstrates its versatility. An amplifier capable of handling multiple impedance levels is ideal for more complex speaker systems that incorporate different drivers.

Robust connection options: 2-channel RCA line out for additional installations

With its 2-channel RCA line outputs, the ESX QS-TWO allows for easy connection to additional components such as active subwoofers to further enhance the in-car audio experience. These connection options are ideal for enhancing and personalizing the in-car sound system. RCA outputs allow users to integrate additional audio components without complex installation steps, increasing flexibility and convenience. On-site installation in Frankfurt (Oder) and expert support. FAQs and help provide you with professional support and detailed information about your ESX Quantum QS-TWO. You can find further insights and tips for optimizing your sound system in the audio blog at masori.de.