From the right to the left
- 4/0ga welding
- 3/0ga welding
- 2/0ga welding
- 1/0ga welding
- 1/0ga Kicker Hyperflex
- 1/0ga Lighting Audio
- 1/0ga Knu Kollossus
- 2/0ga welding
- 1/0ga welding
The last four pcs of welding wire are from Ebay link and the first two pcs of welding wire are from my local welding supply shop.

I thought this would be a much better comparison w/ the wire zip tied as tight as it will go...
From the left to the right:
- 4/0ga welding
- 3/0ga welding
- 2/0ga welding
- 1/0ga welding
- 1/0ga Kicker Hyperflex
- 1/0ga Lighting Audio
- 1/0ga Knu Kollossus
- 2/0ga welding
- 1/0ga welding
The first four pcs of welding wire are from Ebay link and the last two pcs of welding wire are from my local welding supply shop. As you can see, that pc of 1/0ga orange wire is very small compared to the amp 1/0ga wire. In all fairness to the Knu wire, it has very small strands and compressed more easily than the rest. The Kicker wire has that funky rope lay and did not compress that easily. As you can tell, all three of the amp 1/0ga wire is basically the same size as both 2/0ga welding wire.
From left to right..
- 4/0ga welding wire
- 3/0ga welding wire
- 2/0ga welding wire
- 2/0ga welding wire (two different manufactures)
- 1/0ga welding wire
- 1/0ga Lighting Audio
- 1/0ga Kicker Hyperflex
- 1/0ga Knu Kollossus
Props to Qtrhorse
Props to dinty01 for suggestion