【Zonotone Grandio SP-1 (5.5m)｜Speaker Cable That Brings Out a Fuller Sound】

When listening to car audio, you may want a bit more body in the sound. You may want to enhance the presence of the vocals. You may want to clearly feel the overlap of instruments and the way the soundstage spreads.

That’s where Zonotone’s speaker cable Grandio SP-1 (5.5m) comes in.

It may not be time to replace the speakers or amplifier, but you want to finish your current system one step deeper. In such cases, re-evaluating your speaker cable can sometimes be the trigger that changes the overall impression of the sound.

For Those Who Want to Prioritize Sound “Body” and Density

Rather than shaping the sound into something thin and light, the Grandio SP-1 (5.5m) is a cable designed to deliver strong sound density and presence.

Vocals become easier to hear with a clearer “core” and more natural breath, and instruments such as guitar, piano, and drums also tend to come across with thickness—not just outline.

With your favorite vocal tracks, you may feel the nuances of the singer’s expression closer; with live recordings, you can enjoy the impact of the performance and the spaciousness of the stage. Even songs you already know well may become something you want to listen to again, because the way the sounds overlap changes.

Grandio SP-1 (5.5m) is a next-generation Grandio-series speaker cable that combines five types of conductors, including ultra-high-purity 7N-class Cu, HiFC, PCUHD, modern tin-plated high-purity copper, and OFC.

Not Only Cable Replacement—Connection Method Matters Too

Choosing a speaker cable is not the end of the story.

The final impression varies depending on the compatibility with the speakers and amplifier you’re using, the routing and handling of the wiring, the treatment of the terminal portions, and the balance of the entire existing system. To make the cable’s strengths come through, it’s important to think not only about what you buy, but also about where and how you connect it.

At LOGON, we listen to your current sound concerns and preferences, and we’ll recommend whether the Grandio SP-1 (5.5m) is a good fit—or whether it might be better to review other parts first.

If it were me, I would confirm the actual system before deciding anything—rather than deciding on the cable first—and then think in order about which areas are worth investing in. That way, it’s easier to avoid the situation where, after installation, you feel, “The change isn’t what I expected.”

People for Whom the Grandio SP-1 (5.5m) Is a Good Fit

• Those who want to add a bit more body and density to the sound
• Those who want to increase the presence of vocals and instruments
• Those who want to feel the soundstage’s width and depth
• Those who want to finish the sound by making the most of their current speakers and amplifier
• Those who want to choose cables while considering the balance of the entire system

What kind of change you’ll get from replacing the speaker cable differs depending on the vehicle and the system. Let’s not decide the product alone—let’s check the actual sound together and organize things toward a better direction.

Main Specifications

【Basic Information】
Product name: Grandio SP-1 (5.5m)
Brand: Zonotone
Type: Speaker cable
Length: 5.5m

【Conductor Configuration】
Ultra-high-purity 7N-class Cu
HiFC
PCUHD
Modern tin-plated high-purity copper
OFC

If you value sound body and stage feel, please consult us including how it will pair with your current system. So you can enjoy your usual music even more deeply in your car, we’ll consider everything carefully up to the installation.