ISO-COAT® – A New Standard for Cable Longevity.
Designed to be Played, Built For a Lifetime®
Our stake in the ground — A promise to you.
From humble beginnings — as Voltage Cable Co.® started to establish itself in the guitar cable market, we made a very clear decision: to set a new standard for what durability is and means, and to manufacture guitar cables that are not only inspiring to use, but that actually last a lifetime.
What truly matters to us is that you, the artist, receive a product that can stand the test of time — a product we can back with 100% confidence. We want our customers to focus on playing, not worrying about gear failure. That’s why our attention has been on developing the best-sounding, reliable guitar cables money can buy.
It all starts with high-quality components and the skilled handmade work. Our highly experienced cable technicians use Quad Eutectic silver solder, ensuring oxygen-free connections for maximum signal integrity and strength — along with a rigorously tested quality control program that ensures every cable shipping from Sydney has been approved.
Using quality components is one thing — and yes, they definitely matter. But ignoring the real reasons cables fail? That’s not doing the industry, or our artists, any justice.
For the last 4 years, we have been working tirelessly diagnosing, developing, testing, and innovating our way to a solution for this decades-old, industry-known problem we all know as cable failure.
"Every company wants return customers. We want lifetime customers using our lifetime products."
Introducing ISO-COAT® – The First and Only Lifetime Hermetic Seal for Instrument Cables. (Pat. Pending)
With our hard work and 45+ years of hands-on experience — on the bench, in the studio, and on stage — we’ve encountered every type of cable failure imaginable. So, sticking to our core beliefs at Voltage, we invented ISO-COAT® — a patent-pending, world-first solution to eliminate cable failure at its source.
ISO-COAT® hermetically seals the entire cable assembly, preventing oxidation, corrosion, and atmospheric attack — the leading causes of signal loss, sonic degradation, and cable failure. Designed for any gig, any climate, anywhere, we can proudly say this is our stake in the ground as a boutique Australian company stepping up to deliver guitarists of the world a product that actually does what it says on the box.
Every guitar cable leaving our warehouse in Sydney now comes protected with ISO-COAT® — and a hand-stamped wax seal authenticity card symbolising our guarantee and innovation to you.
For guitarists who demand genuine lifetime durability from their gear and consistent connection to their music, Voltage Cable Co. is here to provide that small but crucial link between the artist and the expression.
Learn more about ISO-COAT® below ↓
No More Dead Cables.
Built for any gig, any climate, anywhere. This first-of-its-kind patent-pending hermetic seal locks out corrosion and oxidation—silent tone killers that destroy cables and your sound.
The Weak Spot
Every guitar cable has a weak spot—the termination point. Without protection, moisture and air slowly eat away at the copper, leading to crackling, signal loss, and total failure when you least expect it.
The Science of Decay: What’s Happening Inside
Corrosion and oxidation attack copper over time, breaking down the connection and degrading your tone. This reaction even creeps up into the cable internals changing its electrical characteristics. Heatshrink alone isn’t enough—it covers the problem but doesn’t seal it. This slow decay is the silent killer of your cables.
What’s Happening Inside Your Cable Over Time.
Other cables let corrosion in — we designed ours to seal it out. Most cables fail due to corrosion — causing crackling, signal loss, and eventually total failure. Our lifetime seal protects your cable from the inside out, preventing corrosion for life. Voltage-branded heat shrink is then applied over the top for added structural integrity.
Best Selling Coils
See ISO-COAT® in Action
Our most popular handmade vintage coil cables sealed with ISO-COAT®:
Built to last a lifetime with ISO-COAT® — the only anti-corrosion seal of its kind. Patent pending.
What the Pro's say
"I got so tired of breaking cables and wearing them out from stepping on them. That never happens with my Voltage coily cables. And it doesn’t hurt that they look cool as hell. Best cables I’ve ever used, hands down."
"I’m on wireless so much that I never really thought about cables… until I got a Voltage Cable… now I reach for it first every time."
“I have played over 100 hours worth of gigs on my first blue voltage cable .. now using the cream as well, It sounds great every time and I love the vintage vibe. Those two are my favourite cables of all time”