Details
The ALTO HPA4 4-Channel Stereo Headphone Amplifier is a professional headphone amplifier system for studio and stage applications. This universal, multi-purpose device features 4 independent high-power stereo amplifiers in one rack unit, and delivers maximum audio quality - even at high volume levels. No studio should be without the HPA4 or its 6-channel sister model, the HPA6.

Features

• Professional, universal headphone amplification system for studio and live sound applications
• 4 independent stereo high-power amplifiers in 1U rack unit
• Maximum audio quality - even at high volume levels
• 4 independent input/mix sections for 4 stereo mixes
• Stereo AUX IN per channel for additional signal source
• OUTPUT LEVEL control per channel
• MONO and LEFT/RIGHT MUTE buttons per channel for additional flexibility
• 3 headphone outputs per channel on front (1) and rear (2) panels
• Precision 8-segment LED output level display per channel
• DIRECT IN on the front panel for additional stereo signal sources
• Bass and Treble controls on each channel
• Servo-balanced, gold-plated XLR and 1/4" TRS connectors
• High-quality components and exceptionally rugged construction ensure durability Internal power supply