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, road-ready direct box that converts your unbalanced instrument and line-level signals into balanced XLR outputs for seamless integration into any professional sound system. Built on a passive design that requires no power supply, it's a bulletproof addition to your live rig—delivering clean impedance matching and ground isolation that keeps your tone transparent and your signal path quiet, whether you're running keyboards, bass, backing tracks, or multi-channel inputs during gigs and studio sessions.
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 keep your signal clean and transparent through the entire signal chain. The ground-lift switch kills hum caused by ground loops, an essential feature for eliminating unwanted noise in balanced audio workflows.
Reliability & Connectivity for Live Use
The DJDI accepts two parallel 1/4" unbalanced TS inputs (each at 50 kOhms impedance) and outputs balanced XLR pairs at 600 Ohms impedance. An input attenuator prevents clipping when hot signals hit the box, while RF filtering on the inputs shuts out electromagnetic interference that could muddy your tone. The rugged, compact footprint—just 5.51 × 4.72 × 1.57 inches—fits seamlessly into pedalboards, racks, or your gig bag without adding bulk.
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 is the workhorse passive box that delivers rock-solid impedance conversion, transformer isolation, and professional specifications without the need for external power—the perfect tool to keep your live signal clean and your tone intact.
More Information
| Condition | New |
|---|---|
| Country of Manufacture | China |
Reviews
At a Glance
The dbx DJD1 is a compact, passive 2-channel direct box that converts unbalanced instrument and line-level signals into balanced XLR outputs with zero external power required. Live and touring musicians rely on it to eliminate ground loops, prevent signal clipping with its input attenuator, and maintain a transparent, noise-free signal path from guitar rigs, keyboards, or mixing consoles straight into a PA or monitor system. Its transformer isolation, RF filtering, and road-ready compact footprint make it an essential utility for any gigging setup.
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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