Do Speaker Cables Really Make a Difference? UK Testing
By Robert Jones · 2026-07-23
Alright, let's get down to brass tacks: do speaker cables actually make a difference to your sound? I've spent decades faffing about with gear, and I've got some strong opinions and real-world tests to share from right here in the UK.
# Do Speaker Cables Really Make a Difference? UK Testing Right, everyone's asked it, haven't they? "Do speaker cables make a difference?" It's a question that gets bandied about in every hi-fi shop, on every forum, and at every mate's house when you're showing off your new bits of kit. For over twenty years, I've been plugging things in, listening intently, and pulling my hair out trying to figure out what's snake oil and what's genuinely worth your hard-earned cash. This isn't some armchair review, mind. This is about real-world testing, in various rooms, with various ears, right here in the UK. I’m no stranger to a bit of healthy scepticism. When I first started out, I used bog-standard bell wire for some old Wharfedale Diamonds. Sounded grand to my young ears. Then a mate, who was a bit more into his gear, convinced me to try some thicker, oxygen-free copper stuff. And you know what? I genuinely *thought* I heard a change. Richer bass, clearer highs. But was it real, or just the power of suggestion? That’s the nub of it, isn’t it? Over the years, I ## FAQ ### What's the most important factor for speaker cable? For runs under, say, 5-8 metres, the most important factor is simply having sufficiently thick cable (lower gauge number). This minimises resistance and ensures adequate power delivery. Don't worry too much about exotic materials unless you've got money to burn and a system that can truly show it up. ### Can bad speaker cable damage my amplifier or speakers? Extremely thin or damaged cable, especially over long runs, can cause your amplifier to work harder than it should, potentially leading to overheating or even protection mode. In rare, extreme cases, this could cause damage. Always use appropriate gauge cable for your length of run. ### Is oxygen-free copper (OFC) speaker cable worth it? OFC theoretically offers better conductivity and corrosion resistance. While some claim audible benefits, in practice, the difference between good quality standard copper and OFC is usually negligible for most home setups. It's not a night-and-day improvement for your average listener. ### How long should my speaker cables be? Keep your speaker cables as short as practically possible to minimise signal degradation and resistance. However, it's key that both left and right speaker cables are the *exact same length* to maintain proper stereo imaging and timing. Don't have one 2m and the other 5m! ### What's a good alternative to expensive speaker cable? Good quality 14-gauge (AWG) or 12-gauge (AWG) copper mains cable (often sold as 'Figure 8' or 'Zip cord') can be an excellent, cost-effective alternative for decent runs. Just make sure it's pure copper and not copper-clad aluminium (CCA).