Mackie MDB-1A｜Studio-Grade Active DI Box
The Mackie MDB-1A is an active DI box designed specifically for stage performances and studio recording. It perfectly converts your high-impedance instrument signals (such as electric guitars, basses) into clean, low-noise balanced signals, ready for direct connection to a mixer or audio interface. With its superior active circuit design, the MDB-1A offers extremely high headroom and ultra-low distortion, ensuring your instrument's original tone is faithfully reproduced. Whether for live performances or precise recording, it delivers the studio-quality sound you need. Its robust "Built-Like-A-Tank™" metal casing can withstand the most demanding environments, making it an indispensable professional tool for musicians and audio engineers.
Key Product Features
- Professional Active Circuitry: Powered by 48V phantom power, providing ultra-high headroom and low-noise circuit performance.
- Preserves Original Tone: Perfectly handles high-impedance sources, ensuring no loss of sound quality details or dynamics from instruments like guitars and basses.
- High Input Signal Handling: Equipped with a -20dB attenuator (Pad), easily handles high-output signal sources such as active pickups or keyboards, preventing overload distortion.
- Eliminates Noise Interference: Built-in Ground Lift switch effectively resolves annoying hum caused by ground loops.
- Flexible Signal Routing: The 1/4" Thru output can simultaneously send the instrument signal to a stage amplifier, allowing musicians to monitor easily.
- Merge Input Function: The unique Merge switch combines the Input and Thru jacks into a single stereo-to-mono input, convenient for connecting stereo sources.
- Studio-Grade Balanced Output: Provides standard XLR balanced output, ensuring signal integrity over long cable runs.
- Rugged and Durable Design: Mackie's classic "Built-Like-A-Tank™" all-steel chassis is built to withstand the most demanding touring environments.
Technical Specifications
| Type | Active DI Box |
| Channels | Mono |
| Frequency Response | 20 Hz to 20 kHz |
| Dynamic Range | > 100 dB |
| Total Harmonic Distortion (THD) | < 0.005% @ 1 kHz |
| Input | 1 x 1/4" TS (High-Z) |
| Output | 1 x XLR (Balanced), 1 x 1/4" TS (Thru) |
| Switches | -20dB Pad, Ground Lift, Merge In/Thru |
| Power Requirements | +48V Phantom Power |
| Construction | All-steel Chassis |
THINK2 Three Major 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.
- Comprehensive Warranty & After-Sales Service: Original 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/Exchange Policy
- With valid proof of purchase and product serial number, enjoy the original manufacturer's warranty and THINK2 after-sales service.
- DOA / Non-Human Defect: If confirmed by inspection within 7 days of purchase, returns or new product replacements can be processed.
- Exclusions: Human-induced 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 package the item properly for return as instructed.
- Service Area: Primarily Taiwan; outlying islands/overseas will be handled according to actual logistics.
