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Royal Spirit SP-1 (2.5m)

Speaker cables that connect with refinement—down to the atmosphere of the music.

【Tuning the Soundstage for Car Audio: Zonotone Royal Spirit SP-1 (2.5m) Speaker Cable】

“Vocals sound like they’re bunched up near the speakers.”
“The instrument positions overlap, making the soundstage feel a bit cramped.”
“I want to fine-tune the spread and sense of connection in the sound by one more step.”

If that sounds like you, we recommend considering the Zonotone Royal Spirit SP-1 (2.5m).

Even if you replace the speaker cable, it doesn’t necessarily mean the overall volume or the amount of bass will change dramatically. What you’re likely to notice more are things like the vocal placement, the separation between instruments, and how the sound comes together. When you play the songs you always listen to, the goal is to hear the music not just sounding around the speakers, but naturally connecting throughout the cabin.

That said, the outcome isn’t determined by choosing a cable on its own. The sound impression can also change depending on compatibility with your speakers and amplifier, your current wiring, the installation condition on the door side, the quality of the terminal finishing, and how the cable is routed.

If I were advising you, I wouldn’t jump straight to recommending a cable swap. First, I’d confirm what you’re currently finding concerning in your system—whether you want a wider soundstage, more natural vocal placement, or better integration/connection of the sound. Depending on your goal, you may also find that there are areas worth addressing before changing the cable.

Rather than aiming only to install the Royal Spirit SP-1 (2.5m), we’ll consider together whether replacing it makes sense for your vehicle’s condition and the music you normally listen to. That is an important part of finishing a car audio system at LOGON.

Even if you just want to know how much the sound might change with a cable replacement, that’s totally fine at the discussion stage. While checking your current sound, we’ll sort out which parts are worth investing in and which parts should be adjusted first. If you’d like to enjoy your favorite tracks with a more natural, wider sound, please feel free to consult us.

Main Specifications / Specs

【Basic Information】
Product name: Royal Spirit SP-1 (2.5m)
Type: Speaker cable for car audio
Length: 2.5m

For the actual number of cables needed and the required length, as well as the best combination with your existing system, we’ll guide you after confirming your vehicle and installation details.

Cable Type

Speaker cable (Royal Spirit series)

Conductor Construction

Proprietary DMHC construction combining four different copper conductor types (ultra-high-purity 7N-class copper, HiFC, PCUHD, OFC) in fully independent 8-strand cores

Core Count / Conductor Size

2.5 sq mm (8 strands) x2 - hot and cold sides each bundled from 8 independent cores

Connector Type

Thick rhodium-plated original Y-spade and banana plug terminals (combination selectable)

Shielding

High-density copper braid shielding

Jacket / Outer Diameter

PVC sheath (EU-RoHS compliant) covered with dual-color nylon braid; approx. 15.0 mm outer diameter

Product Line

Part of Zonotone's 10th-anniversary "Royal Spirit" series (standalone line)

Length Options

Standard 2.0 m pair, with custom lengths available from 1.0 m in 0.5 m increments (price varies by length)

List price¥ 177,650 (Tax included)