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21 May 2026
FutureShop is an authorised dealer for Supra Cables, a Swedish cable manufacturer based in Ljungskile that has been producing audio and video cables since 1976. This guide draws on direct experience with the Supra range across hi-fi, home cinema, and custom installation projects.
Our Verdict
Supra Cables deliver exceptional performance-to-price across every cable category, with the Ply speaker cable and EFF-IX interconnects standing out for detail and dynamics in mid-range hi-fi systems, the LoRad power cables offering outstanding EMI/RFI rejection for their price, and the AOC HDMI 2.1 fibre range providing reliable 4K and 8K transmission for long-run home cinema installations.
Quick Take
- Supra has manufactured cables in Sweden since 1976, using tin-plated oxygen-free copper conductors across the range for corrosion resistance and long-term contact stability.
- The Supra AOC HDMI 2.1 active optical fibre cables support 48Gbps bandwidth and maintain signal integrity up to 50m, making them the practical choice for projector installations and large cinema rooms.
- The Ply speaker cable uses a flat, parallel conductor geometry that reduces inductance for tighter bass and improved high-frequency detail compared to round-profile alternatives at the same price.
- The LoRad power cable range uses a star-quad conductor arrangement specifically designed to cancel EMI and RFI, delivering cleaner power to source components and amplifiers without the cost of reference-grade mains cables.
- All Supra products are designed and manufactured in Ljungskile, Sweden, with recyclable packaging and eco-conscious materials. Supra's cables are built to last, reducing replacement waste over time.
Supra Cables has been manufacturing high-performance audio and video cables in Sweden since 1976, earning a reputation for combining technical excellence with lasting value. Whether you're setting up a hi-fi system, upgrading your home cinema, or looking for reliable connectivity, Supra offers a complete range of solutions designed to enhance both sound and picture quality.
Supra HDMI Cables
Supra was one of the first brands to achieve HDMI certification, and their current HDMI 2.1 range continues that legacy. Supporting 4K, 8K, HDR, and high refresh rates, Supra HDMI cables deliver flawless transmission for home cinema and gaming. Their Supra AOC HDMI 2.1 fibre cables are especially popular for longer runs, maintaining signal integrity up to 50 metres without compromise.
Comparison: Passive HDMI vs AOC HDMI
| Feature | Supra Passive HDMI | Supra AOC HDMI 2.1 |
|---|---|---|
| Max Length | Up to 15m | Up to 50m |
| Bandwidth | HDMI 2.1, 48Gbps | HDMI 2.1, 48Gbps |
| Ideal Use | Short to medium runs | Long-distance, projectors, large cinema rooms |
Supra Speaker Cables
From the Classic series to the highly regarded Ply design, Supra speaker cables are known for their clarity, dynamics, and excellent value. The Supra Ply Speaker Cable uses tinned oxygen-free copper conductors to reduce inductance for tighter bass and greater detail. The Supra Classic Speaker Cable provides a balanced, smooth sound at a budget-friendly price point. Both ranges are trusted by audiophiles worldwide.
Comparison: Supra Ply vs Classic
| Feature | Supra Ply | Supra Classic |
|---|---|---|
| Conductor | Tinned OFC, flat profile | Tinned OFC, round profile |
| Sound Character | Tighter bass, high detail | Smooth, balanced |
| Price Point | Mid-range | Entry-level |
| Best For | Detail-focused hi-fi systems | Budget-friendly hi-fi and AV |
Supra Power Cables
Supra's LoRad Power Cables are designed to minimise electromagnetic interference (EMI) and radio frequency interference (RFI). By delivering cleaner power to your system, they help reduce background noise and improve dynamics. LoRad cables are also built with safety and sustainability in mind, using eco-conscious materials and recyclable packaging.
Comparison: Supra LoRad Variants
| Feature | LoRad 1.5 | LoRad 2.5 | LoRad 2.5 SPC |
|---|---|---|---|
| Conductors | 1.5mm² tin-plated OFC | 2.5mm² tin-plated OFC | 2.5mm² silver-plated copper |
| Current Suitability | Suitable for lower power components | Higher current capacity for amplifiers | Same as 2.5 with enhanced conductivity |
| Flexibility | More flexible, easy to install | Thicker, slightly less flexible | Similar to 2.5 |
| Best For | Source components, DACs, CD players | Integrated amps, power amps | High-resolution systems seeking extra refinement |
For a deeper look at how mains cable design affects system performance and where in the chain a power cable upgrade makes the most audible difference, our guide to whether hi-fi mains power cables really make a difference covers the practical conditions that determine the size of the improvement.
Supra Interconnects
Supra interconnects provide high-purity signal transfer between components. With effective shielding, oxygen-free copper conductors, and optimised geometry, they outperform standard RCA cables, delivering greater clarity, better dynamics, and reduced noise. Options such as the Supra EFF-IX RCA Interconnects ensure excellent results for analogue connections, while digital options like the Supra Trico Digital Coax provide stable transmission for digital sources.
Building a Supra System: Where to Start
Because this guide covers four cable categories, it is worth being direct about where an upgrade has the most impact and in what order.
Start with speaker cables if you have a two-channel hi-fi system and are still using the original cables supplied with your amplifier or speakers. Speaker cables carry the highest signal levels in the system and are the most audibly significant wire change you can make. The Supra Classic is the right starting point for systems under £1,000 in component value; the Supra Ply suits systems from £1,000 to £3,000 where analytical detail retrieval is already a system strength.
Add interconnects second if you have a separate source component (turntable, CD player, streamer with analogue outputs, or DAC) connected to an amplifier via RCA. The EFF-IX replaces the weakest link between source and amplification, particularly relevant on phono and DAC connections where the signal level is lowest and most susceptible to noise.
Add a LoRad power cable third, starting with the source component (DAC, streamer, or CD player) rather than the amplifier. Source components with switching power supplies benefit most from the LoRad's EMI/RFI rejection. Use the LoRad 1.5 on DACs and streamers, and the LoRad 2.5 on integrated or power amplifiers where the current draw is higher.
Address HDMI last in a hi-fi context, or first in a home cinema context. For a pure music system, HDMI is rarely present and rarely the bottleneck. For a home cinema with a projector or a long run from AV receiver to display, the AOC HDMI 2.1 is the practical solution for runs over 5m where passive cables risk signal degradation.
Why Choose Supra Cables?
All Supra products are designed and manufactured in Ljungskile, Sweden, with strict quality control and a strong commitment to sustainability. Their cables are built to last, meaning fewer replacements and less waste. For enthusiasts seeking reliability, performance, and eco-friendly design, Supra Cables represent a trusted choice.
At FutureShop, we stock the full Supra range, including HDMI, speaker, power, and interconnects, helping you get the very best from your hi-fi and home cinema systems.
Browse the full Supra Cables range at FutureShop, available with our 60-day money-back guarantee on cables and free cable burn-in service. Not sure which Supra cable to prioritise for your system? Get in touch with our team and we will help you build the right upgrade path for your setup and budget.
