【GZUA 2SQ｜A High-Grade Class-AB Power Amplifier Pursuing High Sound Quality】

When listening to music, I want a bit more sonic thickness and information. I’d like to enjoy the expressions of vocals and instruments more naturally—right inside the car.

GZUA 2SQ is a high-grade Class-AB power amplifier with further improved sound quality performance. It’s not just for making the sound louder; it’s designed for those who want to carefully tune the sound of the entire system.

Using the highest-quality parts for high-end audio, it draws out even the subtle nuances of music with care. Even with songs you’ve always listened to, its appeal is that previously unnoticed details—such as vocal presence, the overlapping of instruments, and the lingering reverberation—become easier to hear.

It also features a wide-band variable crossover that supports band-pass operation, as well as a variable BIAS control. Depending on your combination with speakers and subwoofers and the acoustic characteristics inside the vehicle, you can achieve more fine-tuned sound design.

An amplifier isn’t something you’re done with just by choosing a product and installing it. How the power and signal are routed, the installation method, the combination with other equipment, and the final adjustments all significantly change how it sounds.

At LOGON, we consider a configuration that makes the most of the GZUA 2SQ together, while checking your vehicle model, current audio system, the music you usually listen to, and your sound preferences. If it were me, I wouldn’t decide the combination based on the amplifier’s standalone performance alone—I’d also evaluate its compatibility with your speakers and existing system.

If you want “more thickness in the sound” or “to aim for a step up in sound quality while leveraging the factory system,” please let us hear your current setup first. Rather than unnecessarily adding more equipment, we’ll guide you realistically from the areas where spending money actually makes sense.

Key Specifications

【Basic Information】

• Product name: GZUA 2SQ
• Type: High-grade Class-AB power amplifier

【Sound Quality / Circuit】

• Uses high-end audio parts
• Wide-band variable crossover supporting band-pass
• Variable BIAS control

※Compiled based on publicly available manufacturer information that could be confirmed.