In 2009, Sleek Audio officially released the CT6, their first custom earphone. At its introductory price of 300$, the single driver earphone dominated the budget custom earphone world with great sound and a slew of innovations at a great price point. A LOT has happened since then, and while the CT6 remains a great earphone, it has been outclassed by newcomers. Naturally, Sleek Audio couldn’t leave it at the top of their portfolio. Enter the CT7, a completely redesigned custom iem sporting dual drivers, higher sensitivity, better artwork, and one of the rawest, fastest, most impressive sounds I’ve heard at any price.