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LD Systems LDHPA4 4-Channel Headphone Amplifier

The LD Systems LDHPA4 is a compact and powerful 4-channel headphone amplifier designed for recording studios, home studios, podcast setups, rehearsal rooms and professional audio applications. It allows up to four headphones to be connected and individually controlled, making it an ideal solution when multiple users need to monitor the same audio source.

Despite its compact size, the LDHPA4 delivers an impressive 4 x 100 mW headphone output, providing clear and powerful monitoring with high volume and low distortion. With 6.3 mm TRS and RCA inputs, individual volume controls and selectable mono/stereo operation, the LDHPA4 provides a simple and reliable headphone distribution solution for both professional and project studios.

The LD Systems LDHPA4 Professional 4-Channel Headphone Amplifier provides an easy way to distribute an audio signal to multiple headphones without requiring a large rack-mounted system.

Four independent headphone volume controls allow each listener to adjust their own monitoring level. This makes the LDHPA4 particularly useful for musicians during recording sessions, podcast hosts and guests, multimedia production teams, classrooms and other situations where several people need to listen to the same audio source.

The amplifier features flexible 6.3 mm TRS and RCA input connections, making it easy to integrate with mixers, audio interfaces, computers and other professional audio equipment. A mono/stereo selector further increases flexibility for different monitoring applications.

With a frequency response of 20 Hz – 20 kHz and 4 x 100 mW output power, the LDHPA4 delivers powerful and detailed headphone monitoring. Its durable metal enclosure and extremely compact dimensions make it equally suitable for permanent studio installations and portable audio setups.

For users looking for a compact headphone distribution amplifier for four headphones, the LD Systems LDHPA4 offers a practical combination of power, individual level control, flexible connectivity and professional build quality.

• 4-Channel Headphone Amplifier – Connect and distribute audio to up to four headphones simultaneously.
• Individual Headphone Volume Control – Four independent level controls allow every listener to set their preferred monitoring volume.
• Powerful 4 x 100 mW Output – Delivers strong headphone levels while maintaining clean and clear audio reproduction.
• Flexible TRS & RCA Inputs – Features 6.3 mm TRS and RCA connectivity for easy integration with mixers, audio interfaces and other audio sources.
• Mono & Stereo Operation – Selectable mono/stereo mode provides greater flexibility for different monitoring requirements.
• 20 Hz – 20 kHz Frequency Response – Covers the full standard audible frequency range for accurate music, speech and studio monitoring.
• Supports Headphones from 10 Ohms – Suitable for a wide variety of professional and consumer headphones.
• Compact Metal Housing – Durable construction measuring only 94 × 48 × 82 mm, ideal for desktops, studio workstations and portable setups.
• Ideal for Studio & Content Creation – Suitable for recording studios, home studios, podcasting, music production, rehearsal rooms and multimedia applications.
• Power Supply Included – Supplied with an external 24 V DC power adapter for convenient installation.