FocusProAudio - Compact 4-Ch Stereo Headphone Amplifier with DC 12V Power Adapter
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About this product
Compact headphone amplifier providing four independent stereo outputs for monitoring. Ideal for studios needing multiple listeners, it delivers clean amplification and reliable performance.
Features
Multi-Listener Monitoring
Supports four headphones simultaneously
Clean Signal Amplification
Delivers clear, distortion-free audio
Compact Studio Design
Saves space in home and professional studios
Simple Power Setup
Includes DC power adapter for easy use
Versatile Audio Distribution
Ideal for group recording and monitoring
Specifications
- Connection TypeWiredHeadphone FitOver-the-Ear
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Compact headphone amplifier providing four independent stereo outputs for monitoring. Ideal for studios needing multiple listeners, it delivers clean amplification and reliable performance.

This headphone amplifier features 4 stereo headphone amps that reproduce crisp, clear audio and monitor level control and mute options for simple operation.

If youre tracking more than one musician at once or if everyone in a group wants to listen to a playback you need a monitor distribution system. The compact flexible PHA40 can power up to four pairs of headphones and up to four independent volumes. Grab this super-compact amp during your sessions to power practically any headphones--four of them at the same time to be exact. This allows four people in your studio to listen to the main mix while recording and each listener can determine their own volume level using the dedicated output level controls. The PHA40 contains 4 high-power stereo amplifiers that maintain the highest sonic quality even at maximum volume levels. These ultra-low-noise operational amplifiers are included for outstanding audio performance. DETAILSCompact Control Unit Stereo Headphone Output Level Adjustment Independent Channel Rotary Volume Controls (4) 1/4 Stereo Headphone TRS Output Connector Jacks 1/4 TRS Source Input Connector Jack Power On LED Indicator Power Supply Included DC 12V/150mA Dimensions (W x D x H): 4.07 x 1.18 x 2.24

The On-Stage HA4000 Four-Channel Headphone Amplifier in Black accepts one stereo input and makes the audio available to four separate stereo headphone outputs, each with its own volume control. Up to four people can listen simultaneously to a single audio source and independently adjust their headphone volume.
Specs
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