dbx DJD1 2-Channel Passive Direct Box
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dbx DJD1 2-Channel Passive Direct Box
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- SKU
- DBXDJDI
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 passive 2-channel direct box engineered to deliver clean, transparent impedance matching and ground-loop elimination for studio and home-recording sessions. Engineers and producers use it to safely route unbalanced instrument and line-level sources into a mixing console or audio interface without noise, coloration, or hum, while the input attenuator handles hot signals without clipping. Its transformer isolation and minimal noise floor (−104 dBu) make it ideal for capturing pristine recordings across tracking and overdub sessions.
Who This Is For
Great for
- ✓ Live Performance
- ✓ Touring
- ✓ Studio Sessions
- ✓ Home Recording
Skill level: Intermediate · Advanced · Professional
Frequently Asked Questions
Do I need external power to run the DJD1?
No. The DJD1 is a passive design with no power supply required, making it ideal for portable rigs, pedalboards, and venues where power access is limited or unavailable.
What signals can I connect to this direct box?
The DJD1 accepts two parallel unbalanced TS (1/4 inch) inputs at 50 kOhms impedance each, accommodating instrument-level and line-level signals including guitars, keyboards, mixing consoles, and other audio equipment.
How does the ground-lift switch help with hum?
The ground-lift switch disconnects pin 1 of the XLR output from the input ground, breaking ground loops that cause 50 or 60 Hz hum in your signal—a common problem when connecting multiple pieces of audio gear.
Can the DJD1 handle hot signals without distortion?
Yes. An input attenuator is included to prevent clipping from high-level signals, and the transparent transformer isolation maintains a noise floor of −104 dBu with only 0.23% typical THD+N.
What are the physical dimensions and will it fit my setup?
The DJD1 measures 5.51 × 4.72 × 1.57 inches, compact enough to mount in a 1U rack space, sit on a pedalboard, or fit in a gig bag alongside other gear.
Do I pay sales tax on this order?
We collect sales tax only on orders shipped to California. Orders shipped to any other US state are charged $0 sales tax at checkout when you buy direct from our website. Marketplaces such as eBay, Reverb and Amazon collect sales tax in nearly every state as marketplace facilitators no matter who the seller is, so the same item at the same price costs less bought direct. Free US shipping and 30-day returns are included. Some states ask buyers to self-report use tax on out-of-state purchases.
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