Technical Highlights

  • Power at 2 Ω: 2 x 200 W, impedance stability for safe operation.
  • Bridge power at 4 Ω: 1 x 264 W, high efficiency of 88%.
  • Frequency response 5 Hz ~ 22 kHz, SNR of 101 dB for clear audio quality.
  • More technical details
Regular price €229.00
Regular price €229.00 selling price €229.00
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Product400.2 EVOX2

including VAT
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datasheet
Regular price €229.00
Regular price €229.00 selling price €229.00

The 400.2 EVOX2 is a 2-Channel Amplifier from Soundigital with a compact design. The device features the RTGP system as well as dynamic heat dissipation and heat recovery. A vibration damping device and stability at various impedances are integrated. The output power is 2 x 200 W at 2 Ohms and 2 x 132 W at 4 Ohms. In bridged mode, it delivers 1 x 400 W at 2 Ohms and 1 x 264 W at 4 Ohms. The frequency response (-3 dB) ranges from 5 Hz to 22 kHz, with low-pass and high-pass filters adjustable from 45 Hz to 850 Hz. The operating voltage is between 8 V and 16 V, the SNR is 101 dB, the overall efficiency is 88%, and the damping factor is 200. The input sensitivity at RCA is 0.19 to 2.1 V and at the high-level input is 1.51 to 16.76 V; the weight is 0.52 kg.

Features
  • 2-Channel Amplifier
  • RTGP system
  • Dynamic heat dissipation and heat recovery
  • Vibration damping device
  • Stable at various impedances
  • Compact design
Technical Specifications
  • Power at 2 Ohms: 2 x 200 W
  • Power at 4 Ohms: 2 x 132 W
  • Bridged power at 2 Ohms: 1 x 400 W
  • Bridged power at 4 Ohms: 1 x 264 W
  • Frequency response (-3 dB): 5 Hz – 22 kHz
  • Low-pass filter (12 dB/Octave): 45 Hz – 850 Hz
  • High-pass filter (12 dB/Octave): 45 Hz – 850 Hz
  • Operating voltage: 8 V – 16 V
  • SNR: 101 dB
  • Input sensitivity (RCA): 0.19 – 2.1 V
  • Input sensitivity (high-level input): 1.51 – 16.76 V
  • Current draw (music): 21 A
  • Current draw with resistive load: 42 A
  • Overall efficiency: 88 %
  • Damping factor (at 100 Hz nominal impedance): 200
  • Power Cable: 4 mm²
  • Audio output cable: 2 x 2 mm²
  • Recommended Fuse (music): 25 A
  • Recommended Battery (minimum): 40 Ah
  • Weight: 0.52 kg

Frequently Asked Questions about 400.2 EVOX2


What amplifier power does the 400.2 EVOX2 provide at different impedances?

The 400.2 EVOX2 from Soundigital delivers different power levels at various impedances. At 2 Ω, it reaches 2 x 200 W, and at 4 Ω, it provides 2 x 132 W. When the amplifier is bridged, it results in a power of 1 x 400 W at 2 Ω, while at 4 Ω, it achieves 1 x 264 W. These power levels allow for flexible adaptation to different speaker requirements and listening preferences. Especially for audio enthusiasts who value powerful audio playback, this amplifier offers impressive sound quality and performance through its diverse power options.

How efficient is the 400.2 EVOX2 and what features contribute to this?

The 400.2 EVOX2 has an impressive efficiency of 88%. A key factor for this is the RTGP system, which provides high thermal efficiency. The integrated dynamic heat dissipation and heat recovery significantly enhance performance and extend the amplifier's lifespan. Additionally, the vibration damping device ensures that fewer vibrations and disturbances occur, further improving stability and reliability. For audiophiles seeking a sustainable and powerful solution, this amplifier is an optimal companion due to its technological features.

What frequency ranges can the 400.2 EVOX2 cover?

The 400.2 EVOX2 amplifier is capable of covering a frequency response from 5 Hz to 22 kHz, making it particularly versatile for various musical genres. It also features both a low-pass and a high-pass filter, each with a slope of 12 dB/octave and adjustable from 45 Hz to 850 Hz. These filtering options allow for precise sound control and optimal adjustment of the audio output to personal preferences or acoustic conditions. This is especially important for users who enjoy a wide range of music styles and want to achieve the best sound performance.

What are the input sensitivities of the 400.2 EVOX2?

The input sensitivity of the 400.2 EVOX2 is specified in two ranges. The RCA input operates with a range of 0.19 to 2.1 V, and the high-level input supports 1.51 V to 16.76 V. This versatility allows the amplifier to be adapted to different sources and speaker systems. Whether it’s a standard radio or a high-quality hi-fi system, the various options enable seamless integration and optimization of the input level to minimize distortion and ensure clear sound reproduction.

What voltage does the 400.2 EVOX2 require for operation?

The operation of the 400.2 EVOX2 is designed for a power supply of 8 V to 16 V. This voltage flexibility allows for use in a variety of vehicles and ensures that the amplifier operates stably, even when the voltage fluctuates. Especially in situations where the vehicle battery exhibits different voltage levels, such as when starting the engine or during heavy use of other electrical systems, the amplifier's performance remains constant. This ensures reliable audio playback regardless of external conditions.

What are the dimensions of the 400.2 EVOX2 and how does this affect installation?

The 400.2 EVOX2 impresses with its compact design, which facilitates installation even in vehicles with limited space. This space-saving construction allows for flexible placement, whether in the trunk, under a seat, or in a specially designed audio area. The small size means that users have to make fewer compromises regarding space requirements when integrating the amplifier, while still enjoying the full power and functionality of the device. This compact design is a significant advantage, especially for those looking to optimize their car audio systems with minimal effort.

What is the current draw of the 400.2 EVOX2 under different conditions?

The 400.2 EVOX2 shows differentiated current draws depending on the operating scenario. In music operation, it draws 21 A, while it can consume up to 42 A with a resistive load. This information is essential for the proper planning of the audio system and power supply in the vehicle. For uninterrupted and powerful audio playback, it is necessary that the vehicle's electrical system can deliver these currents without issues. Therefore, the power source, such as the alternator or battery, should be adequately sized to meet the amplifier's needs.

What is the signal-to-noise ratio of the 400.2 EVOX2?

The signal-to-noise ratio (SNR) of the 400.2 EVOX2 is 101 dB, which indicates high sound clarity and minimal distortion. A higher SNR value ensures that the input sound is reproduced without distortion and without unwanted noise. This is particularly noticeable in quiet music passages or at low volume settings, as the Amplifier effectively minimizes distracting background noise. This is especially important for audiophiles who strive for the most original and authentic music reproduction and want to experience every nuance of the music.

What cable specifications are required for the installation of the 400.2 EVOX2?

For the correct installation of the 400.2 EVOX2, a Power Cable with a cross-section of 4 mm² is recommended to ensure it meets the power requirements of the Amplifier. Regarding the audio outputs, cables with a cross-section of 2 x 2 mm² are optimal to ensure interference-free signal transmission and sound quality. It is important to adhere to the recommended cable specifications to avoid potential power losses or thermal issues. Well-sized cables contribute to optimizing the entire audio system and ensure reliable and efficient signal transmission.

What safety precautions should be considered when using the 400.2 EVOX2?

To ensure safe operation of the 400.2 EVOX2, a 25 A Fuse should be installed as a protective measure. An important factor when using the Amplifier is also the recommended minimum specification of a Battery of 40 Ah to balance the energy demand. These precautions not only protect the Amplifier but also the entire electrical system of the vehicle from overload and potential damage. Adhering to these requirements is crucial for safe and optimal use of the Amplifier, especially at high volume or with complex audio systems.

Manufacturer information/responsible person

JR Labs
Rainer Jakob
Heinrich-Hertz-Straße 13 A
46325 Borken
Germany

Contact: jakobrainer@jr-labs.eu

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