The Hi-X20 offers exceptionally low noise and total harmonic distortion, especially at low frequencies. The headband and hinges are constructed from metal for stability and robustness, while the earcups are foldable, swiveling, and feature a mounting system to replace the comfortable memory foam earpads when they inevitably wear out. The 10' cable is detachable, further improving the longevity and resilience of these headphones. The Hi-X20 includes the detachable cable, a 1/4" TRS plug adapter, and a carrying bag.
But when measured at lower frequencies—for example, around the 60 Hz thrust of the bass drum—the Hi-X20 headphones are even more impressive, scoring THD values up to 3 times better than several competing products from similar or even considerably more expensive price ranges. This results in clean and detailed bass reproduction.
The ring magnet, combined with a copper-clad aluminum voice coil, reduces the weight of the membrane and the voice coil connected to it, allowing the membrane to move or change direction faster, and providing a more responsive impulse reaction. Expect great bass imaging and low THD (total harmonic distortion) at low frequencies, together with a linear frequency response and open, precise, high-resolution sound that is very revealing and makes error detection easy.