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PreSonus HP4 Headphone Amplifier
Description
Compact headphone amplifier with four independent outputs, each with its own volume control. It offers power up to 150 mW per channel and a frequency response from 20 Hz to 20 kHz. Includes 1/4" balanced inputs and outputs and master volume control for monitors. It is ideal for studies that require simultaneous monitoring on multiple high-fidelity headphones.
Headphone outputs
- Four independent 1/4" stereo outputs.
- Individual volume control for each output.
- Output power: up to 150 mW per channel.
- Mono/Stereo selector per channel.
Line inputs and outputs
- Balanced line inputs: 2 × TRS 1/4".
- Balanced line outputs for monitors: 2 × TRS 1/4".
- Master volume control for monitoring outputs.
- Mute button for monitor outputs.
Performance and signal quality
- Frequency response: 20 Hz – 20 kHz (±0.5 dB).
- THD+N: Less than 0.003%.
- Signal/Noise Ratio: Greater than –98 dB.
- Maximum input level: +22 dBu.
construction and feeding
- Compact size: 13.97 cm × 13.97 cm × 4.45 cm (width × deep × height).
- Approximate weight: 2.27 kg.
- Power via external source of 16 V AC, 1 A.
