The HL4 combines absolutely top technology and professional sound design. Our standard in-ear series for sound professionals and lovers of uncompromising sound quality.


The HL4 combines absolutely top technology and professional sound design. Our standard in-ear series for sound professionals and lovers of uncompromising sound quality. It offers extremely deep lows with bass boost. This 2-way headphone with high-definition drivers combines crystal clear highs and clean bass.

These are in-ears with standard ear attachments, equipped with optimal fitting domes in different sizes. The acrylic-like material looks like highly polished glass: crystal clear, brilliant, and always eye-catching.

Matte is totally in, even for in-ears. With this option, you’ll have a guaranteed cool factor and be totally on-trend. These professional headphones are produced in a universal design from acrylic-like LPH, and delivered with matching domes. Built of perfect-fitting photopolymer (acrylic-like synthetic material). This headphone has a 2-pin exchangeable cable, and can be equipped with a Hörluchs headset, the Hörluchs wireless option and other cable types upon request.

Defined integration: All components are optimally integrated into the headphone to deliver perfect sound to your ear.
The Hörluchs professional series. High-end technology for anyone in front of, on, or behind the stage. For professionals and sound fanatics. Excellent technology at a fair price.

Technical data

  • Sensitivity at 1 mW: 116 dB SPL
  • Impedance at 1 kHz: 30 Ohm
  • Frequency range: 20 Hz – 25 kHz
  • Maximum output: 125 dB SPL
  • Harmonic distortion at 94 dB SPL: 0,2 %
  • Harmonic distortion at 100 dB SPL: 0,3 %


  • high quality packaging
  • ear plugs silicone: 2xS, 2xM, 2xL
  • ear plugs memory foam: 2xS, 2xM, 2xL
  • fabric bag for easy transport
  • cable according to article description
  • filters for wax protection
  • warranty card
  • user information

Bass boost

Bass! Bass! We need bass! This sonic signature will get you boosted. For fans of deep bass and booming beats. Our bass boost makes you feel like you have a fat mega PA right inside your eardrums. Shake your brain! Do you love not only hearing, but feeling your bass? Then this is your world. Bass boost gives you a pure concert feeling without any loss. Bass unlimited! Whether you're a DJ, bass player, drummer, or just a pure bass fan, this is the choice for you.


Crystal clear highs meet clean bass from two corresponding high-definition drivers in the Hörluchs 2-way in-ears. Linear frequency transmission presents perfectly outstanding resolution. The 2-way driver option allows you to hear the music exactly as it was produced – with optimal balance. Do you rather love forceful and precise bass? Then choose our bass-heavy 2-way sound design.

universal design

Hörluchs’ many years of experience in the medical field pays off for you. Our audiologists and sound designers have used our broad experience with the ear, hearing, and thousands of ear impressions, our extensive knowledge of acoustic behavior and the endless variation of the human ear canal to develop the perfect universal in-ear headphones for you. Our in-ears are designed to fit perfectly inside your ear, similar to a customized earmold. You will receive these headphones with matching earmolds called domes. These are made of smart memory foam or a soft silicone. Each available in three sizes, domes ensure your headphones fit securely and create a seal with your ear.

2-pin exchangeable cable

Our cables make no compromises when it comes to quality. This 2-pin cable is easy to exchange for making repairs; thanks to its excellent quality and rugged design, it is a popular choice among top stars and professionals in the music and entertainment industry. Please note that the 2-pin option was not designed for frequent cable replacements. In the “top” version selected here, you use the bending element included in the cable to guide it up and behind the outer ear. This provides a very secure hold and lets the cable disappear discreetly on your neck. With the 2-pin variation selected here, you can replace the cable with any other 2-pin cable from Hörluchs. We offer headset cables and a wireless option as well.