Technical Highlights

  • Power at 2 Ohm: 4 x 100 W RMS, impedance: 2 Ohm.
  • Power at 4 Ohm: 4 x 66 W RMS, impedance: 4 Ohm.
  • Bridged power at 4 Ω: 2 x 200 W RMS, 90 dB signal-to-noise ratio.
  • More technical details
Regular price €279.00
Regular price €279.00 selling price €279.00
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Product400.4 EVOPS

including VAT
Estimated delivery: Sep 17–Sep 21.
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Every product purchased from Masori includes an additional year of warranty in the third year after purchase (months 25–36). We cover repair or replacement free of charge for covered warranty claims. Automatic and free – exclusively for Masori customers. Your statutory rights remain unaffected.

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Regular price €279.00
Regular price €279.00 selling price €279.00

The 400.4 EVOPS from Soundigital is a 4-channel Amplifier that impresses with its power of 100 W RMS at 2 Ohms and 66 W RMS at 4 Ohms. With a frequency response of 5 Hz to 22 kHz and a high signal-to-noise ratio of 90 dB, it offers reliable sound quality. Its bridged power of 2 x 200 W RMS at 4 Ohms and a damping factor of 200 ensure versatile applications. The Amplifier is compact with dimensions of 5.1 x 4.8 x 2.1 inches and weighs only 0.83 kg. It is designed to operate efficiently, with an overall efficiency of 79% and a maximum current draw of 34 A.

Technical Specifications

  • Power at 2 Ohms: 4 x 100 W RMS
  • Power at 4 Ohms: 4 x 66 W RMS
  • Bridged power at 4 Ω: 2 x 200 W RMS
  • 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
  • Signal-to-noise ratio: 90 dB
  • Operating voltage: 10 V ~ 16 V
  • Input sensitivity (RCA): 0.2 ~ 2 V
  • Current draw (Music): 19 A
  • Current draw (max.): 34 A
  • Overall efficiency: 79 %
  • Damping factor: 200
  • Power cable: 4 mm²
  • Speaker cable: 2 x 1.5 mm²
  • Recommended Fuse (Music): 20 A
  • Recommended Battery (Minimum): 40 Ah
  • Width: 5.1 inches
  • Length: 4.8 inches
  • Height: 2.1 inches
  • Weight: 0.83 kg

Frequently Asked Questions about 400.4 EVOPS


What is the power output of the 400.4 EVOPS amplifier at different ohm values?

The 400.4 EVOPS amplifier from Soundigital offers a power output of 4 x 100 W RMS at 2 Ohm. At 4 Ohm, it provides 4 x 66 W RMS. When you bridge the amplifier, you achieve an impressive power output of 2 x 200 W RMS at 4 Ohm. These power specifications are ideal for effectively driving both compact and larger car speaker systems while ensuring maximum sound quality. Especially at low ohm values, the 400.4 EVOPS can fully unleash its power, resulting in optimal acoustic performance.

How does the frequency response of the Soundigital 400.4 EVOPS work?

The frequency response of the 400.4 EVOPS amplifier from Soundigital ranges from 5 Hz to 22 kHz at -3 dB. This means that the amplifier can effectively amplify a wide spectrum of frequencies, providing a solid foundation for both high and low tones. With a frequency response of 5 Hz to 22 kHz, it perfectly covers the entire audible range and delivers crystal-clear sound. This specification ensures that all nuances of the music are reproduced, providing an audiophile listening experience in the car.

What filter options does the 400.4 EVOPS offer?

The 400.4 EVOPS amplifier features both low-pass and high-pass filters, both operating at 12 dB/octave. The frequency range setting for both filters is between 45 Hz and 850 Hz, allowing you to precisely adjust your sound settings. These filters enable accurate control over the frequencies sent to the speakers, resulting in a cleaner and distortion-free sound image. Especially if you enjoy listening to music at high volumes but want to avoid excessive distortion, these filters are particularly useful.

What is the input sensitivity of the 400.4 EVOPS amplifier?

The input sensitivity of the Soundigital 400.4 EVOPS ranges from 0.2 to 2 V, allowing for a variety of signal sources to be connected. This flexibility is particularly important when integrating different audio sources with varying output levels. You can thus connect the amplifier directly to almost any head unit or other audio device to achieve optimal volume settings. This sensitivity range ensures that you always get the best possible sound without distortion or loss of quality.

How much power does the 400.4 EVOPS consume during operation?

For the Soundigital 400.4 EVOPS, the maximum current draw at full power with music operation is 34 A. In general music operation, the current draw is about 19 A. This data is crucial to ensure the appropriate fusing and power supply in the vehicle. The overall efficiency of the amplifier is 79%, which means economical operation with low energy loss. The power supply should ideally have a capacity of at least 40 Ah to ensure consistent performance without drops during music playback.

What cable sizes are required for the installation of the 400.4 EVOPS?

For the correct installation of the Soundigital 400.4 EVOPS amplifier, you need power cables with a cross-section of 4 mm². The speaker cables should have a cross-section of 2 x 1.5 mm² to ensure optimal current flow and sound quality. These cable sizes are crucial for the safe and efficient operation of the amplifier. Proper wiring prevents power losses and ensures the best possible playback quality. Before installation, the friendly dimensions of 5.1 x 4.8 x 2.1 inches in the vehicle should be considered.

What is the signal-to-noise ratio of the 400.4 EVOPS amplifier?

The signal-to-noise ratio of the Soundigital 400.4 EVOPS is 90 dB. This high value means that the amplifier is capable of effectively minimizing signal noise, thus delivering clear and undistorted sound. Such a signal-to-noise ratio is crucial for preserving the dynamics and precision of music while avoiding disruptive background noise. If you value crystal-clear sound, especially in moments when every detail matters, the 400.4 EVOPS proves to be an excellent choice.

What power supply does the Soundigital 400.4 EVOPS require?

The electronic power supply of the 400.4 EVOPS amplifier ranges between 10 V and 16 V. These voltage requirements are particularly critical during operation under real conditions, such as start-stop operations. The operating voltage plays an immense role in maintaining sound quality under various conditions in the vehicle. A constant power source within this range ensures that the amplifier always delivers full power. Make sure that the vehicle battery and electrical system meet this requirement.

What damping factor characterizes the 400.4 EVOPS?

The Soundigital 400.4 EVOPS has a damping factor of 200. A high damping factor is crucial for controlling the movement of the speaker diaphragm and eliminates resonance effects in bass speakers. So, if you value precise and clearly defined bass reproduction, this factor plays a significant role in selecting your amplifier. The damping factor ensures that the 400.4 EVOPS delivers a detailed and powerful bass presence that faithfully reproduces the original recording.

What load capacity is achieved in bridge mode with the 400.4 EVOPS?

In bridge mode, the Soundigital 400.4 EVOPS delivers a load capacity of 2 x 200 W RMS at 4 Ohm. This configuration is optimal for driving more powerful speakers or subwoofers that require more power. By doubling the power in bridge mode, the amplifier is excellent for use in car systems that prioritize strong bass reproduction. Especially when high-performance speaker systems need to be operated, bridge mode proves to be an excellent performer for high-quality playback.

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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