Mackie MDB-1P

Mackie MDB-1P

• Passive DI box designed for musicians and studios
• No power needed, plug-and-play, pure signal
• One-button ground loop hum elimination
• Prevents high-output instrument signal overload
• Tank-grade robust casing, durable & reliable

Bank/ATM Transfer | 1% discount at checkout on order

NT$3,100

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Mackie MDB-1P｜Essential Single-Channel Passive DI Box for Stage and Studio

Pure Signal, Robust Durability: The Most Reliable DI Solution for Your Instruments

The Mackie MDB-1P is a professional-grade single-channel passive DI Box (Direct Box), featuring high-quality passive analog circuit design. It converts high-impedance unbalanced signals from instruments like electric guitars, basses, or keyboards into clean, uncolored low-impedance balanced signals. Its core function is to solve signal attenuation and noise issues during long-distance signal transmission, ensuring your tone is faithfully delivered to a mixer or audio interface.

Compared to connecting instruments directly to a mixer, the MDB-1P, with its excellent circuit design and transformer, effectively prevents signal attenuation and electromagnetic noise interference caused by long cables. It also resolves annoying ground loop hum through its Ground Lift switch. Whether for live performance or studio applications, this "tank-built" rugged Passive DI is a crucial tool for preserving the purity of your instrument signal.

Quick Facts Product Overview

Brand: Mackie
Model: MDB-1P
Type: Passive DI Box
Channel Support: 1
Pad / Attenuator: -15dB
Applicable Scenarios: Live Performance, Studio, Church Worship, Home Studio, DJ Performance

使用者建議分析(點此展開)

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適合誰購買

Electric guitarists or bassists who need to connect to a PA system on stage while also sending the signal to their own amplifier.
Keyboardists or DJs who need to convert their equipment's unbalanced outputs to balanced signals for stable long-distance transmission.
Home studio creators who want to record high-impedance instruments directly into an audio interface, avoiding impedance mismatch issues.

誰不適合購買

Musicians who need additional gain for passive pickups (e.g., traditional acoustic guitar pickups) (should consider an active DI).
Users who need to process two independent instrument signals simultaneously (should choose the MDB-2P stereo version).

Mackie MDB-1P Core Technologies and Features

High-Quality Passive Analog Circuitry: Requires no batteries or Phantom Power, offering extremely high stability and reliability. Its premium analog circuitry ensures a transparent, linear signal, faithfully reproducing your instrument's original tone.
-15dB Pad / Attenuator Function: When connecting high-output sources like active pickups, keyboards, or mobile phones, this function can be engaged to effectively prevent signal overload distortion (Clipping) when entering a mixer or audio interface.
Ground Lift Switch: Instantly resolves ground loop hum (Hum) caused by ground potential differences between different devices, an essential tool for eliminating noise in live performances.
Thru Output: In addition to the balanced XLR output to the console, it also provides a 1/4" Thru jack, which can send the unprocessed original instrument signal directly to a stage monitor amplifier, allowing musicians to hear their most familiar sound.
Built-like-a-Tank™ Rugged Construction: Features a thick steel casing, making it extremely robust and durable. It can withstand the demands of frequent touring and harsh stage environments, making it the most reliable partner in your gear arsenal.

Technical Specifications (Tech Specs)

Type	Passive DI Box
Channel Support	1
Pad / Attenuator	-15dB
Ground Lift	Yes
Analog Inputs	1 x 1/4" TS (High-Impedance)
Analog Outputs	1 x XLR (Balanced Output), 1 x 1/4" TS (Thru)
Power Source	Passive, no power required
Dimensions	3.8 cm (H) x 8.6 cm (W) x 14.7 cm (D)
Weight	0.36 kg

Mackie MDB-1P Pros and Cons

Pros & Notes (Click to expand)

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Pros

Requires no power, plug-and-play, extremely reliable in any situation.
Built-in -15dB Pad / Attenuator, easily handles high-output sources like active pickups.
Equipped with a Ground Lift switch, quickly resolves common ground loop noise issues in live performances.
"Built-like-a-Tank" steel casing, robust and durable, ideal for touring performances.
High-quality analog circuitry ensures a transparent, uncolored signal, faithfully transmitting the original tone.

Notes to Know

Passive design, may not provide signal boost for passive pickups with weaker output.
Only supports mono signals, not suitable for keyboard instruments requiring stereo output.

Mackie MDB-1P FAQ

Q：What is the main purpose of the Mackie MDB-1P 1-Channel Passive Direct Box?

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A：The MDB-1P is used to convert unbalanced instrument signals from guitars, basses, or keyboards into clean, balanced XLR signals for long-distance transmission to a mixer or audio interface, while avoiding noise interference.

Q：What is the difference between the MDB-1P (Passive) and MDB-1A (Active)?

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A：The MDB-1P is Passive, requires no power, and is suitable for high-output sources like active pickups. The MDB-1A is Active, requires Phantom Power, and can provide a stronger, clearer signal for passive pickups.

Q：Do I need to use the '-15dB' button on the MDB-1P?

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A：When the instrument output signal you've connected is too strong (e.g., active bass or keyboard), causing the mixer input to clip, please engage the -15dB Pad / Attenuator to lower the signal level.

Q：When should I press the 'Ground Lift' switch?

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A：When you hear a humming AC noise, it's usually caused by a ground loop. Pressing the Ground Lift switch can break the ground loop, effectively eliminating this noise.

THINK2 Warranty & Support

Service Highlights

Fast Shipping: In-stock items will be shipped within 24 business hours.
Professional Technical Support: Our certified audio engineers provide consultation for installation, licensing, compatibility, and setup.
Comprehensive Warranty & After-Sales Service: Includes both manufacturer warranty and THINK2 customer support.

※ Shipping times are calculated based on business days. Actual warranty follows the manufacturer’s policy. THINK2 provides integration and support assistance.

Warranty & Return Policy

With valid proof of purchase and product serial number, customers are entitled to manufacturer warranty and THINK2 after-sales service.
DOA / Non-human defects: Within 7 days of purchase, after verification, customers may request return or replacement.
Exclusions: Damages from misuse, unauthorized modification, consumable parts, natural disasters, or improper use beyond instructions.
Application Process: Contact customer service during business hours for return instructions.
Service Coverage: Taiwan region primarily; overseas based on logistics standards.

THINK2 — Authorized Audio Gear Dealer in Taiwan