dbx DJD1 2-Channel Passive Direct Box
Description
dbx DJDI 2-Channel Passive Direct Box
The dbx DJDI is a compact, studio-essential direct box built for converting unbalanced instrument and line-level signals into balanced XLR outputs. Its passive design requires no power supply, making it an indispensable tool for tracking sessions, mixing workflows, and any recording situation where you need transparent impedance matching and ground isolation without adding noise or coloration to your signal chain.
Audio Performance & Isolation
Transformer-isolated XLR outputs deliver a noise floor of -104 dBu (measured 22 Hz to 22 kHz with input shorted), while THD + N measures 0.23% typical at +4 dBu and 1 kHz—specifications that ensure pristine signal transfer through your recording chain with minimal artifacts. The ground-lift switch eliminates hum caused by ground loops, essential for maintaining clean tracks and transparent monitoring in any balanced audio workflow.
Recording Integration & I/O
The DJDI accepts two parallel 1/4" unbalanced TS inputs (each at 50 kOhms impedance) and outputs balanced XLR pairs at 600 Ohms impedance, making it ideal for direct instrument recording and line-level sources. An input attenuator prevents clipping when tracking hot sources, while RF filtering on the inputs keeps interference out of your recording. The compact footprint—just 5.51 × 4.72 × 1.57 inches—fits easily into rack spaces, studio shelves, or a portable session kit.
Key Features
- Passive circuit design — no power supply required
- 2 × parallel 1/4" unbalanced TS inputs at 50 kOhms impedance
- 2 × XLR balanced outputs at 600 Ohms impedance
- Transformer-isolated XLR outputs
- Ground-lift switch for hum elimination
- Input attenuator to prevent overloading from high-level signals
- RF filtered inputs
- Noise level: -104 dBu (22 Hz to 22 kHz, input shorted)
- THD + N: 0.23% typical at +4 dBu at 1 kHz
- Compact dimensions: 5.51 × 4.72 × 1.57 inches
The DJDI combines transparent impedance conversion, transformer isolation, and professional-grade specifications in a passive box that adapts to any signal source without introducing noise or requiring external power—a reliable foundation for capturing and mixing great recordings.
More Information
| Condition | New |
|---|---|
| Country of Manufacture | China |
Reviews
At a Glance
The dbx DJD1 is a transparent passive direct box with two parallel 1/4" inputs and balanced XLR outputs, engineered for clean impedance matching in recording sessions and studio workflows. Its transformer isolation and -104 dBu noise floor capture uncolored signals from keyboards, synths, and line-level gear, while ground-lift and input attenuation keep your recordings free from hum and clipping. Choose it for session versatility and honest signal transfer without the need for external power or complex setup.
Who This Is For
Great for
- ✓ Live Sound
- ✓ Studio Recording
- ✓ Signal Conditioning
Frequently Asked Questions
Do I need a power supply to use the DJD1?
No. The DJD1 uses a passive circuit design, so it requires no external power supply or batteries—plug it in and it works.
What is the ground-lift switch for?
The ground-lift switch eliminates hum caused by ground loops, a common problem when connecting balanced and unbalanced gear in live or studio setups.
Can I use the DJD1 with hot line-level signals like keyboards or mixers?
Yes. The DJD1 has an input attenuator to prevent clipping from high-level signals, and both inputs are designed to accept line-level sources at up to 50 kOhms impedance.
How small is the DJD1, and will it fit on my pedalboard?
The DJD1 measures 5.51 × 4.72 × 1.57 inches, making it compact enough to fit into pedalboards, gig bags, or standard rack spaces.
What is the noise floor and distortion specification?
The DJD1 delivers a noise floor of -104 dBu (22 Hz to 22 kHz with input shorted) and THD + N of 0.23% typical at +4 dBu and 1 kHz—specifications that ensure transparent, clean signal transfer.