Наушники — Pro-Ject Hear it Two

The Hear it Two is a lightweight closed over-ear model in the Pro-Ject catalogue, designed for use with portable players and other low-power sources. Pro-Ject built it around a high efficiency figure and a very low weight, and it is offered in three colours, red, white and black. Pro-Ject summarises its concept in the phrase super loud, super light, super cool, and one of its listed features is more SPL with iPod and similar players.

Key specs that matter

Sound is produced by a 30 mm neodymium dynamic transducer. The frequency response is given as 18 Hz to 22 kHz. Sensitivity is 107 dB at 1 mW, the maximum sound pressure level is 130 dB, and the nominal impedance is 32 ohms. The maximum input power is 50 mW. The headphone weighs 77 g without the cable, and the cable is 1.2 m long and made of HPOFC copper. Termination is a 3.5 mm jack plug.

Engineering and use context

The Hear it Two uses a closed-back layout, which keeps the drivers enclosed and limits how much of the signal escapes into the surroundings. Both the headband length and the ear cushion position can also be changed to suit different head shapes. The earcups can be turned flat for transport, so the headphone packs down for a bag or case. Pro-Ject lists high wearing comfort among its design goals, and the low mass is the main factor behind that aim. The low impedance and high sensitivity are targeted at devices such as the iPod and similar players, whose small built-in amplifiers deliver only limited voltage and current. The maximum input rating limits the power that can be applied safely, which is well within the reach of dedicated headphone amplifiers as well. The HPOFC cable uses high purity oxygen free copper conductors, and its length suits use with a player carried in a pocket. The mini-jack plug goes straight into mobile devices, and an adapter permits connection to a 6.3 mm socket on home equipment.

Pairing

Portable players, phones and laptops with a mini-jack output are the intended partners. On a desk, a small amplifier such as Pro-Ject's Head Box S2 provides far more power than the headphone needs, so its volume control would stay low on its scale. Integrated amplifiers with a headphone jack, including the MaiA S3, also have a suitable output.

Alternatives

The Pro-Ject Hear it One is another wired over-ear headphone from the same brand.