Mackie MDB-1P｜Professional Passive DI Box
The Mackie MDB-1P is a professional passive DI box designed for stage performances and studio applications. It perfectly converts your high-impedance, unbalanced instrument signals (such as electric guitars, basses, or keyboards) into low-impedance, balanced signals, ensuring pure, noise-free audio quality even over long cable runs. Its rugged "Built-Like-A-Tank™" metal chassis is built to withstand the most demanding touring environments. The MDB-1P requires no external power, making it an ideal tool for instrument signal conversion, noise elimination, and achieving studio-grade sound quality, providing the most reliable connection solution for your audio system.
Key Product Features
- High Dynamic Range, Low-Noise Design: Delivers exceptionally clean audio performance, fully preserving the instrument's original dynamics and tonal details.
- Passive Circuitry: Requires no batteries or phantom power, offering plug-and-play convenience and maximum stability.
- -15dB Pad Switch: Easily handles high-level signals from high-output active pickups or keyboards, preventing overload distortion.
- 1/4" High-Impedance Input and Thru Output: Allows simultaneous signal routing to a mixer and a personal monitor on stage.
- Balanced XLR Output: Provides a standard professional connection, ensuring signal integrity over long cable runs.
- Ground Lift Switch: Effectively eliminates hum and buzz noise caused by ground loops.
- Built-Like-A-Tank™ Construction: Crafted with an incredibly rugged all-steel chassis, designed to withstand demanding touring and daily use.
- Wide Range of Applications: Perfect for professional signal conversion for instruments like electric guitars, electric basses, acoustic instrument pickups, and keyboards.
Technical Specifications
| Type | Passive DI Box |
| Channels | Mono |
| Frequency Response | 20 Hz to 20 kHz |
| Dynamic Range | 121 dB |
| Total Harmonic Distortion (THD) | <0.002% |
| Input | 1 x 1/4" TS (High-Z) |
| Output | 1 x XLR (Balanced), 1 x 1/4" TS (Thru) |
| Pad | -15 dB |
| Ground Lift Switch | Yes (Ground Lift) |
| Power | No Power Required (Passive) |
| Chassis Construction | Built-Like-A-Tank™ 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: Original manufacturer's warranty plus THINK2 customer support.
※ Shipping times are calculated on working days; delays may occur on holidays or due to force majeure. Actual warranty terms are subject to the manufacturer's official announcements; THINK2 provides integration and agency assistance.
THINK2 Warranty and Return Policy
- Enjoy original manufacturer's warranty and THINK2 after-sales service with valid proof of purchase and product serial number.
- 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 return the product properly packaged as instructed.
- Service Area: Primarily Taiwan; offshore islands/overseas will be handled according to actual logistics.
