Mackie HM-400｜Professional 1U Rackmount 4-Channel Headphone Distribution Amplifier
The Mackie HM-400 is a rackmount headphone amplifier designed specifically for professional recording studios and rehearsal spaces. It provides a powerful and flexible professional monitoring solution, featuring 1 main stereo input and 4 independent headphone amplifier channels within a compact 1U chassis. Each channel further offers 3 headphone outputs, totaling up to 12 outputs. Each musician can customize their multi-track mix monitoring content via independent Aux inputs and balance control, ensuring a clear, low-noise, and perfect audio experience during recording.
Key Product Features
- 1U Rackmount Design, with a rugged, durable "Built-Like-A-Tank™" steel chassis, suitable for professional environments.
- 1 Main Stereo Input, with independent level control and parallel outputs.
- 4 Independent Headphone Amplifier Channels, providing high-quality studio monitoring capabilities.
- Each channel provides 3 Headphone Outputs, totaling up to 12 Output Jacks, meeting multi-person monitoring needs.
- Each output channel is equipped with an independent Stereo Aux Input for personalized mixing.
- Balance Control, allowing mix balance between the main signal and Aux signal.
- Mute and Stereo/2-Ch Mode Switches, providing ultimate monitoring flexibility.
- All channels and main outputs are equipped with 7-Segment LED Level Meters for precise visual monitoring.
- Utilizes High-Quality Analog Circuitry, ensuring low-noise and high dynamic range audio performance.
Technical Specifications
| Input Type | 2 x Balanced/Unbalanced Main In (L/R), 4 x Stereo Aux In |
| Output Type | 2 x Balanced/Unbalanced Main Out (L/R), 12 x Stereo Headphone Outputs |
| Number of Channels | 4 Independent Amplifier Channels |
| Outputs Per Channel | 3 |
| Total Outputs | 12 |
| Controls | Level Control, Balance Control, Mute, Mode Switch |
| Level Display | 7-Segment LED Level Meter (Main Signal & Per Channel) |
| Rack Size | 1U / 19 inches |
| Power | Standard IEC Power Cable |
| Chassis Construction | Built-Like-A-Tank™ All-Steel Chassis |
THINK2 Three Guarantees
- Fast Shipping: In-stock items shipped within 24 working hours.
- Professional Technical Support: Professional audio engineers provide consultation on installation, licensing, compatibility, and basic setup.
- Complete Warranty and After-Sales Service: Manufacturer's warranty plus THINK2 customer support.
※ Shipping times are calculated based on working days; delays may occur on holidays or due to force majeure. Actual warranty terms are subject to the manufacturer's official announcement; THINK2 provides integration and agency assistance.
THINK2 Warranty and Return Policy
- With valid proof of purchase and product serial number, enjoy manufacturer's warranty and THINK2 after-sales service.
- DOA / Non-Human Defect: Within 7 days from the date of purchase, upon confirmed inspection, returns or new product replacements can be processed.
- Exclusions: Human damage, unauthorized disassembly or modification, consumable parts, natural disasters/force majeure, use beyond specifications or not according to instructions, etc.
- Application Process: Contact customer service during business hours and return the product properly packaged as instructed.
- Service Area: Primarily Taiwan; offshore islands/overseas will be handled according to actual logistics.
