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Grandio SP-1 (2.0m)

Connect the nuances of sound carefully, and deepen the aftertaste of a familiar song.

【Zonotone Grandio SP-1 (2.0m)|Speaker Cable for Car Audio】

For those who want to draw out even more body and impact

When you listen to car audio and feel that the vocals are a little too far away, that the instruments sound light, or that the soundstage comes across as flat—there are times when rethinking the signal path, including the speaker cables (not just the speakers and amplifier), can change the overall impression of your system.

Zonotone Grandio SP-1 (2.0m) is a speaker cable for car audio that you may want to consider if you place importance on the density, strength, and sense of scale of the sound.

Instead of steering the sound toward something thin and light, you can aim to clearly bring out the presence of vocals and instruments and the thickness from the low end through the midrange. It’s well suited for those who want to finish their current system one more step deeper.

Sound changes you can aim for with Grandio SP-1 (2.0m)

Grandio SP-1 (2.0m) combines the following five types of conductors:

  • Ultra-high-purity 7N-class Cu
  • High-performance pure copper wire made with a new material: HiFC
  • High-purity oxygen-free copper wire: PCUHD
  • Modern tin-plated high-purity copper
  • High-purity oxygen-free copper: OFC

Rather than determining the tonal direction with just one material, this design balances the richness and spread of the sound by combining each material’s strengths.

Actual listening results will vary depending on the vehicle and system, but I think this is a cable that’s easy to put on your shortlist if you want to add body to the vocals or bring out a bit more definition and impact from the instruments.

With your favorite vocal tracks, you may find it easier to perceive the presence of the voice, and with live recordings, you may enjoy the depth of the stage and the cohesion of the performance. This is a cable that lets you aim for changes that make you want to listen to the music you always play again.

Choose a speaker cable based on compatibility with your system

A speaker cable doesn’t necessarily change the sound in the same way in every car just because you replace it.

The best match depends on factors such as the speaker’s character, the amplifier’s drive capability, the DSP adjustment state, your current wiring method, and more. Even if you’re pairing it with a system that already has sufficient body in the sound, a cable with a different direction may end up suiting it better.

If it were me, I wouldn’t decide based only on the reputation of the cable by itself—I’d listen to your current sound first, and then consider it.

  • Do you want to add more body to the sound?
  • Do you want to bring the vocals a little closer to the front?
  • Do you want to increase the sense of power in the low end?
  • Do you want to refine the soundstage width and depth?

Once your goals are clear, it becomes easier to see where to incorporate Grandio SP-1 (2.0m) and what kind of installation approach to use.

What it means to have a speaker cable installed at LOGON

Even with the same cable, the final result can differ depending on where and how it’s integrated.

At LOGON, we think about how to use the cable while checking your vehicle’s audio configuration, your current wiring, and the combination with your speakers and amplifier. Including cable routing and connection points, we confirm the sound after installation and, as needed, adjust the overall balance of the entire system.

I think the reason to have a professional shop handle the installation is that it’s not just about swapping the cable—it’s about being able to work together to figure out what to add to your current system to make the music even more enjoyable.

If you want to enhance the sound’s body and the presence of the vocals, or if you want to draw out a bit more from your amplifier and speakers, please consider Grandio SP-1 (2.0m) as a candidate. Let’s aim for great sound in a reasonable way while confirming your vehicle model, your current system, and the music you listen to most often.

Main Specifications / Specs

【Basic Information】

  • Product name: Grandio SP-1 (2.0m)
  • Brand: Zonotone
  • Product type: Speaker cable for car audio
  • Cable length: 2.0m

【Conductor Materials】

  • Ultra-high-purity 7N-class Cu
  • High-performance pure copper wire made with a new material: HiFC
  • High-purity oxygen-free copper wire: PCUHD
  • Modern tin-plated high-purity copper
  • High-purity oxygen-free copper: OFC
Cable Type

Speaker cable (2-conductor pair)

Product Line

Grandio series

Conductor Construction

5-material hybrid conductor: ultra-high-purity 7N-class copper, HiFC, PCUHD, tin-plated high-purity copper, and OFC

Core Count / Conductor Size

10-core construction, 3.4mm² per conductor group (x2), using the proprietary D・M・H・C method

Connector Type

Original Y-lug and banana plug terminations (thick rhodium plating, screw-mount, interchangeable)

Shielding

High-density copper braided shielding

Length Options

Standard finished pair is 2.0m; custom lengths from 1.0m to 3.5m in 0.5m increments available made-to-order (approx. 2-week lead time)

List price¥ 200,200 (Tax included)