【ZONOTONE Grandio SP-1 (4.0 m)｜Speaker Cable for Shaping Sound Thickness and Soundstage】

When you replace your speakers and amplifier and the sound improves, you may start noticing things like “I want a bit more thickness in the vocals,” “the sound feels thin,” or “I want to widen the soundstage.”

In such cases, the first thing to review is the speaker cable that carries the audio signal from the amplifier to the speakers.

Grandio SP-1 (4.0 m) is a ZONOTONE speaker cable designed for those who want to choose with sound density and thickness in mind.

Cable Design Aimed at a More “Thick” Sound

Grandio SP-1 combines the following five types of conductor materials:

• Ultra-high-purity 7N-class Cu
• High-performance pure copper wire HiFC
• High-purity oxygen-free copper wire PCUHD
• Tin-plated high-purity copper
• High-purity oxygen-free copper OFC

By combining different materials, this cable is engineered to pursue a sound character that adds a sense of force from the low to mid frequencies, and provides vocals and instruments with added thickness.

If you want to make the outlines of the sound clearer while also adding a sense of density that isn’t just thin and hard, this is a model that should be easy to consider. You may also feel that the vocals, guitar, piano, and other sounds you always listen to are playing firmly in the front of the cabin.

Cable Replacement Depends on System Compatibility

Speaker cables don’t produce the same sound in every car just because you replace them.

The cable that fits will vary depending on the combinations of speakers and amplifier, your current wiring method, your sound preferences, and how well the sound “comes together” in the cabin.

If it were me, I wouldn’t decide based on cable specifications alone. I would first check your current sound.

• I want to add thickness to the sound
• I want the vocals a little more forward
• I want to refine the sense of power in the low end
• I want to create a wider and deeper soundstage
• I want to draw out the goodness of my speakers and amplifier one more step

Even with the same Grandio SP-1, the overall impression of the finished sound will differ depending on where you use it and how you wire it. Considering whether there is a meaningful reason to replace it for your goal is a way to choose with less regret.

At LOGON, We Guide You Thinking All the Way Through to the Post-Install Sound

At LOGON, we organize the areas where replacing speaker cables is more likely to have an effect—not only by confirming your vehicle model and current audio system, but also by checking the music you often listen to and your volume preferences.

Route the cables and the finishing of the connection points are also important factors related to the sound cohesion and the sense of reassurance after installation. We don’t just install the product and stop there; we install it with the aim of achieving a state where it naturally integrates with your existing system and you can feel the meaning of the replacement.

Grandio SP-1 (4.0 m) is a speaker cable that is easy to recommend for those who want to add sound thickness and a sense of density to their current car audio, and those who want to shape the presence of vocals and instruments.

Let’s decide the direction together while listening to how your car sounds—including whether a cable replacement will suit your current system.

Main Specifications / Specs

【Basic Information】

• Product name: Grandio SP-1 (4.0 m)
• Brand: ZONOTONE
• Type: Speaker cable
• Length: 4.0 m

【Conductor Material】

• Ultra-high-purity 7N-class Cu
• High-performance pure copper wire HiFC
• High-purity oxygen-free copper wire PCUHD
• Tin-plated high-purity copper
• High-purity oxygen-free copper OFC