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On-Stage HA4000 Pro Headphone Amplifier

On-Stage HA4000 Pro Headphone Amplifier

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With the On Stage HA4000 4-Channel Headphone Amplifier, up to four people can listen to a recorded take at the same time, while being able to adjust their own individual headphone volume. High quality sound is maintained even at full volume. The HA4000 is also great to use during playing or recording, allowing listeners to hear the main mix.


- 4-channel headphone amp with individual level control
- Max Output Level: Plus 22dB
- Signal to Noise Ratio: 98dB
- Input Connector: 3.5mm RCA
- Output Connector: 6.35mm stereo
- Input Impedance: 1000K ohms (unbalanced)
- Output Impedance: Minimum 10 ohms each channel
- Max Gain: 20dB per channel
- Power Supply: 12-18v DC adapter (included)