Well got scammed a little on a craigslist sub and amp combo. After getting it wired by a shop they told me that the amp was shot and that one of the 10 inch jl audio w0 was showing 80 ohms instead of 8 ohm. The other is supposedly working. I bought both for $150. Now looking to get another amp and should be able to test it cause the other is wired. I'm guessing most amps wire fairly similar. So I'll just unplug the old non working wires to a new one. I'm still looking craigslist but now I get to test it. Now the speaker part. If it's showing 80 ohms what does that mean. Also can I replace it with the w0v2-4ohms when the other working one is a w0-8ohm.