Harmonic Harmony
CEN is an authorised UK reseller of Harmonic Harmony competition-grade RCA cables, priced from £49 to £99. Trusted by competition car audio builders for clean, noise-free signal.
Harmonic Harmony cables and powerline technology are trusted by competition champions, demanded by audiophiles and chosen by professionals worldwide.
For over 20 years, Harmonic Harmony has engineered premium car audio cables and powerline accessories with one obsession: delivering music exactly as it was meant to be heard. No compression, no colouration, just pure, transparent, true-to-life sound.
About Harmonic Harmony
Harmonic Harmony is a specialist in audio interconnects — its Acapella RCA cables provide clean, well-shielded signal runs in the lengths real installs actually need, from half a metre to full boot-run lengths. Good cabling is quiet cabling: proper shielding and terminations keep noise out of amplified systems.
Harmonic Harmony range at a glance
- Acapella RCA cable: high-quality OFC audio interconnects.
- Lengths: 0.5m, 1m, 2m, 3m and 5m.
How to choose the right length
Measure the route from your head unit or DSP to your amplifier, following the path the cable will take through the car, and add a little slack. Route RCA cables away from power cables where possible to reduce the risk of noise.
Harmonic Harmony FAQs
Q: What are Harmonic Harmony Acapella cables?
A: Shielded RCA interconnects in practical lengths from 0.5m to 5m — the signal link between head unit or processor and amplifiers.
Q: Does RCA quality affect sound?
A: It affects noise above all — good shielding and terminations prevent alternator whine and interference in amplified systems.
Q: What length do I need?
A: Measure the actual cable route, not the straight line — boot-mounted amps typically need 5m runs.
Q: Is CEN an authorised Harmonic Harmony reseller?
A: Yes. CEN is an authorised UK reseller of Harmonic Harmony — every product is genuine UK stock with full manufacturer warranty support.
Q: Why buy from CEN?
A: Genuine UK stock from authorised distribution, full manufacturer warranty support, and real advice from our Nottingham team.
Q: What does OFC mean?
A: OFC stands for oxygen-free copper, used for the conductors in the Acapella range.
Q: Can CEN fit these cables?
A: Yes. We can supply and fit them as part of a system at our Beeston, Nottingham workshop.
