HA4000 is the natural solution for everyone needing to amplify a line signal and redirect it to headphones. The rugged construction allows to use this amplifier in studio recording as well as in live applications. Individual channels DIRECT IN and AUX IN allow to satisfy a wide range of connection needs. HA4000 is able to manage up to 6 stereo inputs, 12 stereo amplified outs and 2 balanced links to connect 2 or more units in Daisy-chain.

• 4 fully-controlled stereo indipendent channels
• Allow connections up to 6 different stereo input
• Allow connections up to 12 headphones
• Linkable to additional HA4000 devices trought balanced XRL Main out
• Channel Volume control and output Vmeter
• Channel Mute control ( L & R )
• 4 channel AUX input
• L/R parallel mode ( split stereo signal into two mono )
• Channel Bass and Treble eq control
• Front & Rear 1/4 TRS input/output connectors
• Standard 1 " rack mounting size ( 1U )

• Audio inputs: XLR and 1/4" TRS connectors
• Audio input impedance: 40 kOhm balanced, 30k Ohm unbalanced
• Max input SPL: 16 dB
• Aux in input impedance : 5 kOhm
• Max Aux in SPL: 22 dB
• Direct In 1/4" TRS stereo connectors
• Main Out : XLR and 1/4" TRS Connectors
• Phones output :1/4" TSR stereo connectors
• Min output load impedance : 8 Ohm
• Power amplifier: 21 dB (8 ohm)
• Frequency response: 20 Hz - 22000 Hz
• Signal to Noise Ratio: > 0 dB ( a 0 dBu )
• Dynamic range : 110 dB
• Distortion ( THD ): 0.006% +4 dBu, 1Khz, gain
• Power supply : 200-240 V AC power, 50-60 Hz
• Dimensions : 1U standard rack - 483.0Χ88.0Χ183.5 mm
• Net Weight : Kg 1.4"