AKG HP12U - 12-Channel Rackmount USB Headphone Amplifier with 12 x 1/4-inch Outputs in Black Finish

The AKG HP12U is a 12-channel rackmount USB headphone amplifier that offers a robust and flexible solution for professional audio environments where multiple headphone outputs are required. Designed to seamlessly handle analog and digital inputs, the HP12U allows you to easily monitor your audio equipment without the need to rewire your headphones. Featuring two stereo input channels and six stereo output channels, the HP12U can accommodate up to twelve headphone outputs - each with two 1/4" (6.3mm) outputs per channel. This makes it ideal for large-scale setups, such as recording studios or live sound environments, where multiple users need to monitor audio simultaneously.

The HP12U's versatility is enhanced by its ability to switch between inputs A and B. Input A connects to your computer via USB, turning the HP12U into an external sound card. This feature provides a convenient solution for computer-based audio workstations, eliminating the need for separate audio interfaces. For more expansive systems, you can link multiple HP12U units together to increase the number of channels, making it scalable for any audio setup.

The amplifier is built into a sturdy 1U rackmountable chassis, making it easy to integrate into any standard 19" rack. Each channel features a rotary volume control, allowing precise adjustment of the audio levels for each output. With a frequency response of 20 Hz to 20 kHz and a nominal output of 680 mW per channel into 32 ohms, the HP12U delivers crystal-clear audio with minimal distortion. The six Class A stereo headphone amplifiers ensure that each output channel provides clean, distortion-free sound, even at high volumes. Whether you are in the studio or on stage, the HP12U provides a reliable, high-quality headphone monitoring solution.

Features

• 12-channel headphone amplifier with USB functionality for flexible monitoring
• 2 stereo input channels for analog and digital equipment integration
• 6 stereo output channels, each with 2 x 1/4" (6.3 mm) outputs for up to 12 headphones
• Selectable source input per channel for easy switching between inputs
• USB input for using the amplifier as an external sound card for computer setups
• Volume control on each channel for independent adjustment of headphone levels
• Nominal output of 680 mW per channel into 32 ohms for powerful headphone audio
• Frequency response of 20 Hz - 20 kHz with ±0.3 dB at 100 mW output for accurate sound reproduction
• Sturdy 1U rackmountable metal chassis, perfect for standard 19" racks

Specifications

General

• Channel A: 2 x 1/4" (6.3 mm) TRS inputs with alternate USB input
• Channel B: XLR inputs
• Link outputs: 2 x 1/4" (6.3 mm) TRS
• Headphone Outputs: 12 x 1/4" (6.3 mm) via 6 Class A stereo headphone amplifiers
• Input: Selectable source input per channel
• Volume: Rotary volume control per channel
• Nominal output: 680 mW per channel into 32 ohm
• Frequency response: 20 Hz - 20 kHz +/- 0.3 dB @ 100 mW output
• Design: Sturdy metal 1U 19" rack-mountable design