Pros: Bass ( you can hear and feel), sound stage, clearity, fit
Cons: inserting and removing
I just received my FS custom earphones. I have their universals earphones (Atrios) so I was expecting similar but more of all the good stuff (Bass). Well I did get what I expected. More wider hard hitting bass that I can hear and physically feel. I can feel my ears being pounded with clear sub bass. when i remove them it feels as if my ears have to recover from a fist of bass smaking them over and over. The meds and highs are clearer and wider then their universals. These earphones have a warm feel and I can easily make them brighter with my EQ but I like the warm feel to them. I do have some expensive BA earphones which I do like but to get the bass I have to raise the volume higher than normal and when I remove them from use I tend to have a high ringing sound a fatigue that I did not get from the Atrios. The custom now does not cause fatigue but I feel my ears took some hard sub bass massaging which takes some time to go away. it is not a complain I like it, I want the bass. Now inserting and removing is a lot of work! with all my earphones (universals) I loved the foamy tips so easy to put them in and get a seal and head out doors. With the custom FS I have to work to get them in and fit them correctly. Boy, It seals very well and can be scarry cause I cannot hear anything besides the music so when someone approaches me I keep getting surprised. Removing them is also work I have to twist them and pull them gently using muscle to get them out. I guess I have to get used to them seems these go a lot deeper then the JH 13 pros. I only burned them in for 5 hrs and there has been a slight change in the sound. I liked how they first sounded and I like the change as well. lets see (hear) what happens after more usage.