DBX dB12 Single-Channel Active Direct Box

This dB12 active direct box from dbx utilizes custom dbx mu-metal-shielded audio transformers, high-quality Neutrik® connectors, and low-noise circuitry to preserve the sonic integrity and true characteristics of the signal source. It includes a pad switch that accommodates instrument, line and even speaker level signals; and a polarity invert switch to set the phase relationship between the direct and microphone-level sound.

As a professional, you don’t have time for interference, so they've included a ground lift switch to solve potential hum and buzz problems due to ground loops. Also, thanks to it's cast metal chassis and custom-wound transformer, your signal is isolated from interference. The box's solid, stable footprint keeps it low and in place, prevented from being dragged around the stage, and the unique contoured underside allows secure stacking of multiple units.

The dbx dB12 direct box offers everything essential for you to connect your music equipment directly to the sound board. Get yours today.

Features

• Rugged Design
• Stackable Chassis with Durable Rubber Foot
• Gold-plated Neutrik® XLR Connector
• Premium Chrome Toggle Switches
• Hi-Z 1/4" Input Jack and parallel 1/4" Thru Jack
• Transformer Isolated
• Premium Shielded Custom dbx Transformer
• Balanced XLR Lo-Z Output
• 3-Way 0/20/40 dB Pad Switch
• Flat/High-Cut Filter Switch
• Output Polarity Invert Switch
• Ground Lift Switch
• 4-Year Warranty

Specifications

• Circuit Type: Active
• Input Section:
  • Input: 1 x instrument/line/speaker level
  • Connector: 1/4" jack
  • Type: Unbalanced, RF filtered
  • Attenuation Pad: Switchable: 0, 20, 40 dB
  • Filter: Switchable: Low Pass @ 6 kHz (40 dB pad position only)
  • Max Input Level:
    • +10 dBu (0 dB pad)
    • +30 dBu (20 dB pad)
    • +33 dBu (40 dB pad)
  • Insert Impedance: 1 MΩ (0 dB), 65 kΩ (20 dB), 70 kΩ (40 dB)
• Output Section:
  • Thru Output: 1 x parallel connection from input jack
    • Connector: 1/4" jack
    • Type: Unbalanced, RF filtered
  • Main Output: 1 x line level
    • Connector: XLR male jack
    • Impedance: 600 Ω typical, balanced
  • Main Output CMRR:
    • 106 dB typical @ 60 Hz
    • 123 dB typical at 1 kHz
    • 108 dB typical at 10 kHz
  • Max Output Level: +8 dBu into 600 Ω
  • Output Polarity: Switchable (normal/invert)
• Performance:
  • Transformer: Custom dbx mu-metal-shielded
  • Bandwidth:
    • 20 Hz to 20 kHz, 0+/-2 dB typical with 600 Ω load
    • 20 Hz to 20 kHz, 0+/-1 dB typical with 2 kΩ or higher load
  • Frequency Response:
    • 16 Hz to 30 kHz, -3 dB with 600 Ω load
    • 10 Hz to 70 kHz, -3 dB with 2 kΩ or higher load
  • Phase Deviation (Input ð Output): +40 deg @ 20 Hz, -20 deg @ 20 kHz into 2 kΩ load
  • Insertion Loss: 1 dB typical
  • Harmonic Distortion (THD+N):
    • 0.03% typical @ 50 Hz, 0 dBu
    • 0.003% typical @ 1 kHz, 0 dBu
    • 0.005% typical @ 10 kHz, 0 dBu
  • Noise Floor: -112 dBu, 22 Hz to 22 kHz, unweighted
  • Dynamic Range: 122 dB, 22 Hz to 22 kHz, unweighted
• Power Supply:
  • Voltage: +48 V Phantom Power
  • Current: < 8 mA
  • Ground: Switchable: Ground/Lift
• Dimensions (H x W x D): 2.20" x 5.44" x 5.82"
• Weight: 1.5 lbs. (0.68 kg)