Behringer MicroAMP HA400 is an ultra-compact 4-channel stereo headphone amplifier designed for audio distribution in studio and stage environments. This unit features four independent stereo amplifier sections, allowing up to four listeners to receive audio simultaneously. Each channel includes an individual output level control knob to adjust volume levels independently. The package includes a external DC 12V power adapter (Model S008ACM1200015) supporting an input voltage range of 100–240V at 50/60Hz. Connections are made via standard 1/4-inch TRS audio jacks, including one main input and four headphone outputs. Designed and conceived by Behringer Germany, this desktop audio amplifier provides signal splitting for audio engineers, performers, and technical setups requiring localized headphone monitoring without audio quality degradation even at high volume levels.

BENEFITS

• Enables four simultaneous headphone connections with separate volume adjustment.

• Includes dedicated DC 12V power supply adapter for operation.

• Provides individual level control knobs for each audio channel.

• Compact metal chassis fits easily into small workspace areas.

• Uses standard 1/4-inch TRS jacks for universal audio compatibility.

• Maintains sound quality across all channels at high volumes.

KEY FEATURES

• Brand: Behringer

• Product Type: Ultra-Compact 4-Channel Stereo Headphone Amplifier

• Model: MicroAMP HA400

• Input Connector: 1 x 1/4" TRS Stereo Input

• Output Connectors: 4 x 1/4" TRS Stereo Outputs

• Channel Controls: 4 Independent Rotary Level Knobs

• Power Supply Included: DC 12V Adapter (Model S008ACM1200015)

• Adapter Input Voltage: 100–240V ~ 50/60Hz 300mA

• Adapter Output Voltage: 12V = 150mA

• Country of Origin: Made in China (Designed by Behringer Germany)