Наушники — Koss Porta Pro Headset

The Porta Pro Headset is an open-backed over-ear headphone from Koss, built around the brand's historic Porta Pro platform with an added inline microphone for calls. The original Porta Pro has been in continuous production since the 1980s, making it one of the longest-running headphone designs in the entire industry, and this headset variant extends that acoustic platform with hands-free calling convenience.

Position in line

It sits alongside the standard Porta Pro and the KPH30i Clear in Koss's accessible over-ear catalogue. This positioning alongside two other well-regarded budget open-backed designs confirms Koss has built a considerable reputation specifically around this style of foldable, lightweight open headphone at an extremely accessible price point.

Key specs that matter

Rated response is 15 Hz to 25 kHz, an unusually wide window for such an accessible price tier. Sensitivity is 101 dB per milliwatt into 60 ohms, an efficient design that reaches comfortable volume easily from any phone or portable source despite the moderately high impedance figure. Connector is 3.5mm with an inline microphone for calls.

Sound and use context

Expect the open, spacious character that has made the original Porta Pro a genuine cult classic across four decades of continuous production - this is widely regarded within the hobby as offering remarkable value, delivering a surprisingly full, engaging sound from an extremely lightweight, foldable design that barely resembles a serious hi-fi component at first glance.

Pairing

The 60 ohm impedance and 101 dB sensitivity are easily driven by any phone or portable source, requiring no dedicated amplification for typical listening levels, and the added microphone works directly with any device's standard headset jack.

Alternatives

The standard Porta Pro shares the identical acoustic platform without the inline microphone, worth choosing instead if hands-free calling is not needed. The KPH30i Clear offers a related open-backed design within Koss's accessible catalogue, worth comparing directly on specific finish and any minor tuning differences before choosing between these historically significant Koss models. Given how enduringly popular the original Porta Pro has proven across four decades, spare parts including replacement ear cushions and headbands remain easy to source, a practical advantage over a less established design that might see availability lapse over time.