I started with the Sun Ray Golds on my SE and I like those fine but they wouldn't work on my F-75. I thought maybe I shorted a wire or something. So I ordered a pair of Rat head phones so I would have something to use while I sent in my Sun Ray's. Anyway I compared the two and with the Sun Ray Pro's, I can run my threshold volume1 point lower than the Rat phones and still hear it. At the same setting on the Rat's, my threshold is inaudible. The sound quality on the Sun Ray's is also better, the Rat's seem flatter, not as poignant sounding. However, the Rat phones wear more comfortably over longer periods of time. After about a continuous 9 hours of detecting, the Sun Ray's kind of smoosh my right ear, I have big ears, so you may not have this happen to you. But the Rat phones don't. The longer cord on the Rats is nice as well, you can stand up with the detector still lying on the ground. But the reasons I paid for over 100 dollar headphones were: 1. sound quality 2. Performance....... and in both categories, Sun Ray wins hands down especially in performance. A difference of 1 point of volume on the threshold may be the difference of a deepy that would pay for the headphones entirely. I just bought a second pair of Sun Ray's for my other SE (wife's). My second, new pair, doesn't work with my F-75 either and I am pretty sure it's the actual head phone jack on the F-75 now, as it also has other problems, I am sending it for repair. I haven't tried the other brands of head phones yet----wonder if they'd let me plug them into my SE and then I could check how low I could get my threshold volume and it still be audible to me. There is something to do at a competition hunt.
