Funny you experinced that you needed that SNL value as i "downgraded" to a cheap eBay pocket-radio and used my Denon c560R in-ear headphones. This gave me protection enough to clearly hear RLM and still experince the awesome sounds
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But your experinces with the RLM signal i agree completely on. It was deeply frustrating, especially under the qualifying seasions. They should make the signal stronger.