On-Stage Stands HA4000 4-Channel Headphone Amplifier

Four-Channel Headphone Amplifier for Shared Listening

The On-Stage Stands HA4000 4-Channel Headphone Amplifier is a compact audio distribution solution designed to let up to four listeners monitor the same audio source at once. Ideal for recording studios, rehearsal spaces, podcast setups, and live playback review, it ensures everyone hears the mix clearly without signal loss or distortion.

Independent Volume Control for Every Listener

Each of the four headphone outputs features its own dedicated volume control, allowing users to set comfortable listening levels without affecting others. This makes the HA4000 especially useful during tracking sessions, group rehearsals, or collaborative editing environments where individual volume preferences vary.

Clean Signal for Playback and Recording Sessions

The HA4000 is designed to deliver clean, consistent audio whether it’s being used for listening back to recorded takes or monitoring a live mix while playing or recording. With a high input impedance and low output impedance per channel, it maintains signal integrity and ensures accurate sound reproduction across all connected headphones.

Simple Connectivity with Standard Audio Gear

Using standard 1/4" TRS stereo headphone outputs, the HA4000 integrates easily into existing audio setups. It connects seamlessly to mixers, audio interfaces, and playback devices, making it a straightforward addition to both professional and home audio systems.

Compact Design Built for Studio and Portable Use

Its small footprint makes the HA4000 easy to place on a desktop, rack shelf, or mobile workstation. Powered by the included DC adapter, it provides reliable performance without complicated setup, making it well suited for studios, practice rooms, and portable recording rigs.

Dependable Performance for Everyday Audio Tasks

With up to 20 dB of gain available per channel, the HA4000 provides ample output for a wide range of headphones. Its solid design and practical feature set make it a dependable tool for musicians, engineers, content creators, and educators who need shared headphone monitoring without added complexity.