Because it's too loud even with smallest volume (set via volume slider). If one sets it one more step lower, then it's muted :P I love the boost of quality, but can't really use the patch since I can't listen music when going to sleep. It's too loud. What value should I adjust and from which .parameters -file? This was for the headphones only. BT HF and Speakers and FM Transmitter are great. Thanks!