Review on 🔊 Enhance Car Audio Performance with SoundBox Connected 4 Gauge Black Amplifier Amp Power/Ground Wire 25 Feet Superflex Cable 25' by Hassan Barrera

Seems ok, flexible, outer sleeve/plastic cover is really thick but soft. It's not pure copper, it's copper-coated CCA aluminum, so very light. If I had to run it through my firewall, I guess I'd have to reinforce that line somehow. But for normal use, for example from a distribution block to an amplifier, that should be enough. And it's a little smaller than the 4 gauge cable I used to buy at audio stores.