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  3. 8-channel car amplifier
  5. Quantum QL800.8

ESX Quantum QL800.8 8-Channel Amplifier

125 Watt

ESX Quantum QL800.8 8-Channel Amplifier

Technical Highlights

  • Power up to 160 watts RMS per channel, impedance of 2 ohms.
  • 8 x 80/125 watts RMS at 4/2 ohms, maximum bridged power 4 x 250 watts.
  • Dynamic Headroom technology, MOSFET PWM power supply, aluminum heatsink.
  • More technical details
€449,00
€449,00 €449,00
5% discount with prepayment
inkl. VAT , possibly plus shipping
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Mar 21, - Mar 24,
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Quantum QL800.8 by ESX

The Quantum QL800.8 from ESX is a state-of-the-art 8-channel amplifier that stands out with its advanced Class D technology and Dynamic Headroom technology. This efficient technology enables an impressive output of up to 160 watts RMS per channel. With its distinctive features such as a massive aluminum heat sink, MOSFET PWM power supply, and high-level inputs with Error Protection System, the Quantum QL800.8 is a masterpiece of audiophile technology. Configured for performance-optimized 2- or 3-way systems, this amplifier offers better performance than it may nominally appear at first glance. The complete channel bridging allows for flexible adaptation to your individual needs.

properties

  • Compact Quantum amplifiers in Class D technology have been the spearhead of the ESX program for years. The range extends from the 4 x 300 Watt RMS strong and EISA Award-winning QE1200.4 to 1 Ohm stable monoblocks, all the way to the palm-sized QS-TWO, which fits anywhere. The large selection allows for many combination possibilities. But that's not all: ESX is now expanding the Quantum program with two additional Class D multi-channel amplifiers, offering a powerful 6 x or 8 x 125 Watt RMS at 2 Ohm, peak sound quality, and the latest features.
  • The new models of the Quantum QL series occupy a special position in the ESX program in this context. Ideally, 6- and 8-channel amplifiers are configured to drive not power-intensive 12- or 15-inch subwoofers, but to unleash their potential in 2- or 3-way systems. ESX multi-channel amplifiers are designed to utilize the many channels and adjustment options to optimally supply tweeters and midrange drivers or mid-bass drivers. In this configuration, they then have a significantly higher power than might be nominally assumed at first glance – specifically up to 160 watts RMS per channel. How is this possible? Quite simply! By actively distributing the frequency ranges across multiple channels or speakers in the vehicle, not all speakers play simultaneously at full power. In this case, the amplifier utilizes the power reserves of the generous power supply, which all channels can access if needed. This feature is referred to by ESX as Dynamic Headroom Technology or simply DHR.
  • "If one decides to use four 2-channel models instead of an 8-channel amplifier, the DHR function or dynamic power gain would not be realizable. This is because the power supply of the first amplifier is not capable of driving the channels of the second amplifier as well. In this regard, 6- and 8-channel ESX amplifiers have a dynamic advantage in multi-channel applications."
  • If, for budget reasons, it is still planned to achieve complete sound coverage of the vehicle with only one Quantum power amplifier, including a subwoofer, this is also not a problem thanks to the equipment and the bridging capability of all channels. It is even possible to control the bass level via a wired bass remote. For the QL800.6, it is recommended to bridge channels 5/6, providing 250 watts of mono power. The QL800.8 can deliver even more, as it can provide 2 x 250 watts RMS at 4 ohms on the bridged channels 5/6 and 7/8, including bass control, thanks to the copy function. For those who want even more comfort and power, the new multi-channel amplifiers can be combined, for example, with a monoblock QL800.1, which can then confidently deliver up to 800 watts RMS at one ohm.
  • Advanced Class D technology with very high efficiency
  • Dynamic Headroom Technology*
  • Max. DHR power per channel up to 160 Watts RMS @ 2 Ω
  • 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

  • 8-Channel Class D Digital Amplifier
  • 8 x 80/125 Watt RMS @ 4/2 Ω
  • 4 x 250 Watt RMS @ 4 Ω bridged
  • HPF 50-5000 Hz (CH1/2 + CH5/6)
  • HPF 10-500 Hz (CH3/4 + CH7/8)
  • LPF 50-5000 Hz (CH3/4 + CH7/8)
  • Copy-Mode CH7/8 > CH5/6
  • RCA inputs via Molex
  • RCA outputs via Molex
  • Bandpass function (CH3/4 + CH7/8)
  • Input selection switch CH2/4/6/8
  • Dimensions 285 x 47 x 170 mm
  • Efficiency up to 87%

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ESX Quantum QL800.8 Datasheet

Open datasheet

Frequently Asked Questions about Quantum QL800.8

What power does the Quantum QL800.8 Amplifier from ESX offer?

The Quantum QL800.8 Amplifier provides impressive performance values, reaching up to 160 Watts RMS per channel at 2 Ohms, thanks to the Dynamic Headroom technology that utilizes efficient power. In bridged mode, it is possible to generate 2 x 250 Watts RMS at 4 Ohms on channels 5/6 and 7/8. These performance values are supported by advanced Class D technology, which ensures a high efficiency of up to 87%. Combined with its robust MOSFET-PWM Power Supply, it ensures stable amplifier performance that meets even demanding audiophile needs.

What advantages does the Dynamic Headroom technology in the Quantum QL800.8 offer?

The Dynamic Headroom technology (DHR) in the Quantum QL800.8 allows for efficient utilization of the amplifier's power reserves by dynamically adjusting the power to the needs of the channels. By distributing frequency ranges across different channels, maximum utilization of the amplifier power is achieved without all channels operating at full power simultaneously. This feature is particularly beneficial as it prevents individual channels from overloading the amplifier, resulting in reduced distortion and improved audio quality. DHR optimizes the sound performance for complex sound systems.

What is the design of the MOSFET-PWM Power Supply of the Quantum QL800.8?

The MOSFET-PWM Power Supply of the Quantum QL800.8 is specifically optimized to ensure a fast and stable power supply. This design allows for high current levels to be individually delivered to the channels on demand. MOSFETs guarantee efficient switching, minimizing heat loss and thus increasing the amplifier's efficiency. In combination with PWM technology (Pulse Width Modulation), this power supply not only provides precise control of the output power but also ensures instantaneous energy supply during sudden load changes, which is particularly advantageous for dynamic audio content.

What configuration options does the Quantum QL800.8 offer?

The Quantum QL800.8 Amplifier offers a variety of configuration options to power both 2-way and 3-way systems effectively. Thanks to its full channel bridging capability, flexible adjustments can be made to achieve maximum output power. The use of high-level inputs with Error Protection System expands its applications even in OEM systems with high user-friendliness. For example, the HPF (High Pass Filter) from 50-5000 Hz is ideal for tuning the crossovers, while the LPF (Low Pass Filter) from also 50-5000 Hz can be specifically used to control bass tones within a selected frequency range.

What advantages do the high-level inputs with Error Protection System offer?

The high-level inputs with integrated Error Protection System (EPS) of the Quantum QL800.8 provide significant flexibility for integration into various audio systems. This system protects the amplifier from potential input signal anomalies and surges that could arise from improper connections or defects in the audio source. This is crucial, especially in OEM radio integrations, to prevent disturbances or damage. The automatic power-on feature also allows the amplifier to be conveniently turned on without an external controller, significantly enhancing user-friendliness and safety.

How is the high efficiency of the Quantum QL800.8 achieved?

The high efficiency of the Quantum QL800.8 Amplifier is achieved through its advanced Class D technology, which is responsible for an efficiency of up to 87%. This technology minimizes energy losses during power amplification by operating the transistors in binary mode (On/Off). The massive aluminum heat sink quickly dissipates the generated waste heat, improving the thermal stability of the amplifier. The carefully selected audiophile components also ensure accurate signal processing that operates without significant heat generation, leading to overall lower energy requirements.

What accessories are included or optionally available with the Quantum QL800.8?

The Quantum QL800.8 Amplifier comes with a compact bass level remote that allows for individual and sensitive adjustment of the bass level, which is particularly beneficial when adapting to different music genres. Optional extensions such as monoblocks (e.g., the QL800.1 with up to 800 watts RMS at one ohm) are available, which can unleash even more power potential when combined. These accessories are crucial for users who desire a tailored audio experience and seek greater flexibility in their audio configuration.

Can the Quantum QL800.8 Amplifier be installed in any vehicle?

The Quantum QL800.8 is versatile and can be used in many vehicles, but it is important to consider its dimensions of 285 x 47 x 170 mm before installation to ensure there is enough space available. These compact dimensions allow for easy integration even in vehicles with limited mounting space. A stable power supply is also important to ensure maximum performance. Adjustments in wiring and space may be necessary, especially if existing audio systems differ in size or power consumption.

How does the automatic power-on function of the Quantum QL800.8 work?

The automatic power-on function of the Quantum QL800.8 is designed to start the Amplifier automatically as soon as an input signal is detected. This greatly simplifies operation, especially in systems where the Amplifier is hard to access or cannot be turned on directly by hand. This function is integrated into high-level inputs and ensures that the Amplifier is activated when the vehicle is turned on or when the audio source is switched on. This significantly improves convenience, as no one has to manually switch between different device parts to start enjoying the music.

What filter options does the Quantum QL800.8 offer?

The Quantum QL800.8 is equipped with both high-pass (HPF) and low-pass filters (LPF) that allow for precise control of frequency output. The HPF options range from 50-5000 Hz, allowing for the filtering out of low-frequency noise and optimizing audio quality. The LPF, also with a range of 50-5000 Hz, controls the upper limit of the signal frequency, ideal for Subwoofer or bass-heavy speaker channels. These flexible settings are particularly useful for adjusting the sound balance according to preference and speaker orientation in the vehicle, leading to a more harmonious sound profile.

Manufacturer information / responsible person

Audio Design Loudspeaker Sales GmbH
Am Breilingsweg 3
76709 Kronau
Germany

Authorized Managing Director:
Bruno Dammert

Contact: info@audiodesign.de

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