Technical condition is perfect.

A few minor discoloration and scratches (see pictures for details).

Original power adapter, manual book, and box are included.

The Mackie HM-4 is an ultra-compact, 4-way headphone amplifier designed to split a single stereo signal into four separate headphone outputs. It is perfect for home studios, podcasts, or group rehearsals.

Key features include:

• Four Independent Channels: Allows you to share one stereo audio source (such as an audio interface or mixer) with up to four pairs of headphones.
• Individual Level Control: Each of the four 1/4" outputs features a dedicated rotary volume knob so each listener can set their preferred listening level.
• Built-Like-A-Tank™ Construction: Housed in a heavy-gauge steel chassis with long-wear potentiometers, built to withstand daily studio use and travel.
• Premium Analog Circuitry: Delivers crystal-clear audio with high headroom and a super-low noise floor.
• Included Power: Powered by the included 12V AC adapter.