Insightful reviews. thank you both! I am looking for new in ears and I am undecided. know since yesterday on the B100 and find it very good for a single ba. But the bass is too soft, do it a little bit more. My thoughts went first to the B400. Can the curve in terms of resolution with the b400 keep up? Are both almost on the same price level. Unfortunately, the shipping costs when alclair shop very high, $45 to Germany