LD Systems HPA 4 – 4-Channel Headphone Amplifier

The LD Systems HPA 4 is a compact and powerful 4-channel headphone amplifier designed to meet the needs of project and home studios. Despite its small dimensions, it can handle up to four headphones simultaneously, delivering high volume levels without distortion. This makes the HPA 4 an essential tool for musicians, producers, and audio engineers requiring reliable headphone amplification.​

Each of the four channels is equipped with its own volume control, allowing users to set individual listening levels. A switchable stereo/mono function adds versatility, catering to different monitoring preferences. The amplifier’s sturdy metal housing ensures durability, making it suitable for both studio and on-the-go applications.​

With a frequency response ranging from 20 Hz to 20 kHz, the HPA 4 delivers clear and accurate audio reproduction across the full spectrum. Its high output power and low distortion make it ideal for critical listening and monitoring tasks.