【BRAX GX2400 Long Black｜High-Quality 4-Channel Power Amplifier】

I want to increase the amount of information in the sound. I’d like to align the vocal position a bit more naturally. I want a system that won’t distort when the volume is turned up, so I can listen to my usual songs more carefully.

For those people, BRAX GX2400 Long Black. Building on the philosophy of the traditional Matrix series, this is a high-end power amplifier with a four-channel configuration that pursues both sonic purity and driving power.

Bring out even the subtlest musical details

The GX2400 is not an amplifier made simply to make the sound louder.

It carefully draws out the information contained in the recording—such as the vocalist’s breathing, the fine tonal characteristics of instruments, and even the positional relationships of the soundstage. It has crisp definition, yet maintains a natural quality that’s easy to listen to without fatigue. It’s the kind of amplifier that can reveal new discoveries even in the songs you already listen to every day.

The power supply section is another major feature of this amplifier, using parts such as a large toroidal transformer, high-capacity custom capacitors, and ultra-low-resistance choke coils. Because it has enough headroom to drive the speakers properly, you get stability not only at higher volumes, but also when listening at lower volume levels.

With 4 channels, it’s easier to support system upgrades

In addition to a setup that drives the front speakers and rear speakers separately, the GX2400 is also well suited to using each unit of a front 2-way system individually.

It supports output of 150W×4 at 4Ω, and 240W×4 at 2Ω. At 4Ω bridge, it can be used as 480W×2. It’s an amplifier that makes it easier to secure the necessary driving power depending on your speakers and system configuration.

However, sound is not determined by the number of amp channels and output alone. It’s important to consider everything, including the connection method to the factory audio, speaker combinations, how you take power, installation methods, and final tuning.

Even with the same GX2400, the direction of the final result will change depending on which speakers are used and how they’re driven. If it were me, I would first confirm your current system and what kind of sound you want to hear, and then design a configuration where using the GX2400 makes sense.

Fully leverage the amplifier’s performance, including installation and tuning

The BRAX GX2400 Long Black uses a simple circuit design with shortened internal signal paths. Details such as gold-plated terminals and power-input support for 50mm² cables reflect a focus on high sound quality.

That also means that careful attention is required on the installation side.

If you don’t consider factors for your vehicle—such as routing of the power wiring, fuse selection, safety considerations, amplifier mounting, heat dissipation, and serviceability—you may not be able to take full advantage of the performance you paid for. Furthermore, how it sounds can change greatly depending on gain adjustment after installation and the overall balance tuning of the system.

At LOGON, we don’t judge based on the amplifier alone. We plan the configuration based on the vehicle’s factory system, your current speakers, your intended use, and the music you listen to. It’s not a matter of choosing an expensive amplifier because it must be better unconditionally. Instead, we’ll organize the combination together so that after installation you can think, “I’m glad I chose this amplifier.”

If you’re looking for a 4-channel amplifier that prioritizes sonic purity and driving power, or if you want to refine your current system another step deeper, please consult us while checking your vehicle’s condition. Let’s think realistically—without forcing a configuration—starting from the areas where spending money is most likely to produce noticeable results.

Main Specifications / Specs

【Basic Information】

• Product name: BRAX GX2400 Long Black
• Brand: BRAX
• Type: 4-Channel Power Amplifier
• Operating method: Class AB
• Manufacturing: Germany

【Output】

• 4Ω: 150W×4
• 2Ω: 240W×4
• 4Ω Bridge: 480W×2

【Performance】

• Frequency response: 10Hz–80kHz
• Distortion: 0.0008% or less
• S/N ratio: 120dB or higher
• Damping factor: 1000 or higher
• Input sensitivity: 1.0–8.0V

【Structure / Equipment】

• MOS-FET switching device
• Ultra-low-resistance choke coil
• Large toroidal transformer
• High-capacity custom capacitors
• Super Straight circuit
• Gold-plated terminals
• Power input compatible with 50mm² cables

【Dimensions / Weight】

• Dimensions: W238×H53×D473mm (Long)
• Weight: 8.5kg

• Specifications and installation methods need to be confirmed depending on the vehicle’s system configuration.

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