It's just used to measure the windings, thinner wire has more resistance per foot, thicker wire has less resistance per foot. It's a reliable method for manufacturers use it to monitor how much wire/windings has been put on a pickup.
That's about it, the wire gauge, magnet, and other factors also come into play. It's not a measure of output!!!! If you think it is, why is the Super Distortion 13K and the Super 3 25K, yet they are about the same output?
For more info, read here: http://www.billlawrence.com/Pages/All_About_Tone.htm/Pickupology.htm
Usually (but not always) pickups with higher DC resistance are darker, more midrangey, and compressed. Of course with DiMarzio's asymmetrical windings, you can't really judge much by DC Res.
That's about it, the wire gauge, magnet, and other factors also come into play. It's not a measure of output!!!! If you think it is, why is the Super Distortion 13K and the Super 3 25K, yet they are about the same output?
For more info, read here: http://www.billlawrence.com/Pages/All_About_Tone.htm/Pickupology.htm
Usually (but not always) pickups with higher DC resistance are darker, more midrangey, and compressed. Of course with DiMarzio's asymmetrical windings, you can't really judge much by DC Res.
