Mackie MDB-1P Passive Direct Box for Instruments
The Mackie MDB-1P is a passive direct box requiring no batteries or power supply, making it ideal for portable use in studios, live venues, and field recording. The -15 dB pad prevents overloading from loud instruments, while the ground-lift switch controls hum caused by ground loops.Overview
The Mackie MDB-1P is a compact, unpowered passive direct box engineered to connect high-impedance instruments directly to balanced microphone preamp inputs. Requiring no external power source, the MDB-1P is an essential addition to any touring rig, mobile recording setup, or studio maintenance kit.
Key Features
- Converts high-impedance 1/4" TS instrument input to low-impedance balanced XLR 3-pin mic output
- Passive design requires no batteries, phantom power, or external power supply
- -15 dB pad reduces input level from high-output sources, preventing preamp saturation
- Ground-lift switch suppresses hum caused by ground loops in mixed analog/digital environments
- 1/4" thru jack provides simultaneous connection to an amplifier or pedalboard
- Compact form factor fits easily into gig bags, equipment cases, and portable rigs
- Rugged steel chassis designed to survive touring and location recording
Specifications
- Input: 1 × 1/4" TS Unbalanced (High-Impedance)
- Output: 1 × XLR 3-pin Balanced (Mic-Level)
- Thru Output: 1 × 1/4" TS for Amplifier/Pedalboard Routing
- Impedance Conversion: High-Z to Low-Z (Mic-Level)
- Pad: -15 dB
- Power: Passive (None Required)
- Controls: Ground-Lift, Pad Switch
- Weight: 0.36 kg
- Color: Black
- Country of Origin: United States
Why buy from Procure.ae
Procure.ae equips touring musicians, event production teams, and broadcast facilities with portable audio gear across the UAE and GCC. Request a quote for bulk orders and multi-location delivery.
FAQ
When would I use the MDB-1P instead of the active MDB-1A?
The passive MDB-1P is ideal for applications where power availability is limited or when maximum portability is required. The active MDB-1A offers lower output impedance and active buffering, beneficial in longer cable runs or noisy environments.
What is the -15 dB pad for?
The pad attenuates hot input signals from high-output instruments or amplifiers, preventing clipping in your mixing console's microphone preamp.
Description
Overview
The Mackie MDB-1P is a compact, unpowered passive direct box engineered to connect high-impedance instruments directly to balanced microphone preamp inputs. Requiring no external power source, the MDB-1P is an essential addition to any touring rig, mobile recording setup, or studio maintenance kit.
Key Features
- Converts high-impedance 1/4" TS instrument input to low-impedance balanced XLR 3-pin mic output
- Passive design requires no batteries, phantom power, or external power supply
- -15 dB pad reduces input level from high-output sources, preventing preamp saturation
- Ground-lift switch suppresses hum caused by ground loops in mixed analog/digital environments
- 1/4" thru jack provides simultaneous connection to an amplifier or pedalboard
- Compact form factor fits easily into gig bags, equipment cases, and portable rigs
- Rugged steel chassis designed to survive touring and location recording
Specifications
- Input: 1 × 1/4" TS Unbalanced (High-Impedance)
- Output: 1 × XLR 3-pin Balanced (Mic-Level)
- Thru Output: 1 × 1/4" TS for Amplifier/Pedalboard Routing
- Impedance Conversion: High-Z to Low-Z (Mic-Level)
- Pad: -15 dB
- Power: Passive (None Required)
- Controls: Ground-Lift, Pad Switch
- Weight: 0.36 kg
- Color: Black
- Country of Origin: United States
Why buy from Procure.ae
Procure.ae equips touring musicians, event production teams, and broadcast facilities with portable audio gear across the UAE and GCC. Request a quote for bulk orders and multi-location delivery.
FAQ
When would I use the MDB-1P instead of the active MDB-1A?
The passive MDB-1P is ideal for applications where power availability is limited or when maximum portability is required. The active MDB-1A offers lower output impedance and active buffering, beneficial in longer cable runs or noisy environments.
What is the -15 dB pad for?
The pad attenuates hot input signals from high-output instruments or amplifiers, preventing clipping in your mixing console's microphone preamp.
Specifications
Brand
Mackie
Product Type
Passive Direct Box
Storefront L1
Audio Video
Storefront L2
Audio Accessories
Storefront L3
Audio Cables
Weight (Spec)
0.36
Color (Spec)
Black
Country of Origin
United States
Frequently Asked Questions
What types of instruments can I connect to the MDB-1P?
The MDB-1P is designed for instrument-level signals from electric guitars, basses, keyboards, and other high-output instruments that need direct injection into a mixer or audio interface without an amplifier.
When would I use the -15 dB pad feature?
The pad prevents overloading and clipping when connecting very loud instruments or hot signals; engage it if your instrument's output level causes distortion at the mixer.
How does the ground-lift switch reduce hum?
The ground-lift switch disconnects the audio ground loop between your instrument cable and the balanced output, eliminating the 50/60 Hz hum common in studio and live setups.
Is the passive design suitable for portable or touring applications?
Yes; since it requires no batteries or external power, the MDB-1P is lightweight and reliable for studios, live venues, and mobile field recording without power concerns.
What cable types does it use?
It accepts standard 1/4-inch instrument cables on the input and outputs to balanced XLR microphone connections; contact Procure.ae for compatibility with specific cable formats.
Can I daisy-chain multiple direct boxes?
The MDB-1P is a single-channel device ideal as a standalone converter; for multiple instruments, you would need separate units or consult with Procure.ae on system configuration.
What are the typical lead times and delivery options across the UAE and GCC?
Procure.ae sources Mackie equipment across the UAE and wider GCC on a request-a-quote basis; contact the team for current stock and lead times specific to your location.
Does Procure.ae offer installation or setup support in the GCC region?
Procure.ae provides guidance and support for installation and setup; reach out to confirm availability and support options for your project or venue.
What does the MDB-1P include in the box?
Contact Procure.ae to confirm the exact contents; the unit itself is a passive direct box requiring no batteries or power supply.
Is there a warranty on this passive direct box?
Warranty details vary by region and purchase terms; contact Procure.ae for full warranty information covering the UAE and GCC markets.
How does the MDB-1P compare to powered or active direct boxes?
The MDB-1P is passive, so it adds no amplification or noise; it is reliable and portable but lacks the boost of active units, making it best for moderate signal levels.
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