The result is a very neat unit far better able do drive high-impedance headphones than the output from an unmodified DAC, but still looking as svelte as any commercial product. We like it.
However, to achieve this feat, they typically rely on a high-impedance earphone to produce an audible sound with very little current. These earphones are hard to find, and thus can be expensive.
Closed-Back Design: The closed-back ear cup construction provides superior passive noise isolation, making the headphones ideal for use in noisy environments or for recording sessions where bleed into ...