I'm currently using the large Grey TF10 silicone flanges to great effect. Gives a great seal without a vacuum seal. I am listening to Rob Zombie live and it sounds really good. Very realistic like you are there. Wyd4 if you are listening to live music or music with good dynamic range I think you will really like the Ref. 1. Just getting a good seal (as in not too tight or too loose) is the key.
10/5/14 at 10:20pm