Utilizing custom dbx mu-metal-shielded audio transformers, high-quality Neutrik® connectors, and low-noise circuitry preserves the sonic integrity and true characteristics of the signal source. DBX DI boxes include a pad switch that accomodates instrument, line and even speaker level signals. Take even more control of your sound by utilizing the polarity invert switch to set the phase relationship between the direct and mic'd sound Utilizing custom dbx mu-metal-shielded audio transformers, high-quality Neutrik® connectors, and low-noise circuitry preserves the sonic integrity and true characteristics of the signal source. Both boxes include a pad switch that accomodates instrument, line and even speaker level signals. Take even more control of your sound by utilizing the polarity invert switch to set the phase relationship between the direct and mic'd sound.

As a professional, you don’t have time for interference, so we’ve included a ground lift switch to solve potential hum and buzz problems due to ground loops. And between the combined shielding of the cast metal chassis and the custom-wound transformer, you can be doubly assured of a clean signal free from interference. All of this sits atop a solid, stable footprint, that will keep the box from being dragged around the stage, and the unique contoured underside allows secure stacking of multiple units.
So whether you need to control the level, placement in the mix, or overall characteristics of 4 independent signals or control the gain leveling on a couple of stereo pairs, the dbx dB12 is for you.

Features
Premium Performance
Rugged Design
Stackable Chassis with Durable Rubber Foot
Gold-plated Neutrik® XLR Connector
Premium Chrome Toggle Switches
Hi-Z 1/4" Input Jack
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!

Additional dB12 Features
Phantom Powered
Green LED Phantom Power Indicator
+48V Phantom Operation
Low-Noise Active Circuitr

1 instrument/line/speaker level
Connector: 1/4" jack
Type: Unbalanced, RF filtered
Impedance: 1M Ohm (0dB pad)
47k Ohm (20dB pad)
47k Ohm (40dB pad)
Max Input Level: +10dBu (0dB pad)
+30dBu (20dB pad)
+50dBu (40dB pad)
OUTPUT SECTION
Thru Output: 1 parallel connection from input jack
Connector: 1/4" jack
Type: Unbalanced, RF filtered

Main Output: 1 line level
Connector: XLR male jack
Type: Balanced
Impedance: 150 Ohm typical
Max Output Level: +8dBu into 600 Ohm
PERFORMANCE
Transformer: Custom dbx mu-metal-shielded
Frequency Response: 20Hz to 20kHz, +/-3dB
30Hz to 20kHz, +0/-1dB
Noise: <-105dB unweighted, 22kHz BW
THD: <0.01%, 20Hz to 20kHz BW
<0.005%, 1kHz, 0dBu output
GENERAL
Current Drain Phantom: < 8mA
Phantom Power Range: +48 volts DC
Dimensions: 5.82" L X 5.44" W X 2.20" H (148 x 138 x 56mm)
Weight: 1.4 lbs / 0.65 kg