PreSonus HP4 Headphone Amplifier

Are you and your session players and bandmates tired of straining to hear underpowered headphones? These headphone amps are louder than you’re ever likely to need for session and stage use, so be careful with that level control! Yet the sound is clear and clean, with a wide dynamic range. At last, everybody will be able to hear! Technical Specifications Inputs   Connector Type ¼” TRS, balanced THD+N 0.0025%, 1 kHz, unity gain Max Input Level +18 dBu, <0.5% THD+N, unity gain Input Impedance 10 kΩ Frequency Response 20 Hz - 20 kHz, ±0.5dB Monitor Outputs   Connector Type ¼” TRS, asymmetrical, impedance-balanced THD+N 0.0025%, 1 kHz, unity gain Max Output Level +18 dBu, <0.5% THD+N Output Impedance 51Ω Frequency Response 20 Hz - 20 kHz, ±0.5dB Headphone Outputs   Connector Type ¼” TRS, stereo Max Output Power 130 mW/Ch., <0.5% THD+N, 60Ω load Frequency Response 20 Hz - 20 kHz, ±0.5 dB, 60Ω load Headph