【Zonotone Grandio SP-1 (6.0m)｜In-Car Speaker Cable】

For those who want to enjoy car audio sounds even deeper and more powerful, Zonotone offers the speaker cable Grandio SP-1 (6.0m). Even after replacing your speakers, you may still want a bit more thickness and soundstage width. You may want vocals and instruments to stand out clearly. In such cases, looking not only at the speakers and amplifier, but also at the cable that transmits the audio signal can make it easier to consider how the entire system will come together.

Grandio SP-1 is a speaker cable made by combining five materials: ultra-high-purity 7N-class Cu, high-function pure copper wire HiFC, high-purity oxygen-free copper wire PCUHD, tin-plated high-purity copper, and high-purity oxygen-free copper OFC. By hybridizing these materials, the design aims not only for a rich, dense sonic expression, but also for an intentionally wide soundstage and sense of depth.

When integrated into an actual system, the cable’s appeal is the sense of force that pushes the sound forward firmly, along with the shading and nuance perceived around vocals and instruments. It’s the kind of speaker cable that not only lets you enjoy impact by turning up the volume, but also makes it easier to sense the thickness of the performance and the presence of the stage when you listen to your usual tracks more carefully. It’s also well-suited for those who want to move the time you listen to music in your car from merely background music to an experience closer to live, immersive realism.

However, replacing a speaker cable does not necessarily produce the same change for every system. The overall combination matters—speakers, amplifier, DSP, cable routing, connection methods, and in-car adjustments, among others. To take full advantage of the cable’s performance, where and how you run it, how you handle the terminals, and how you evaluate compatibility with your existing system all affect the final result.

At LOGON, we don’t simply recommend a product on its own. Instead, we discuss together the parts worth replacing while confirming your vehicle, your current audio configuration, the music you listen to often, and the direction of sound you want to achieve. If you’re looking for more thickness and soundstage width, or if you want to draw out another level of performance from your speakers and amplifier, please consult us about choosing a cable that fits your car, including the Grandio SP-1. We’ll build a well-balanced, practical setup with the sound after installation fully in mind, so you can get a solid finish.