More than just a DI. The dbx DI4 Active DI Box gives you four channels of high-quality DI capabilities with the added bonus of being able to function as a stereo line mixer. Each DI channel is equipped with independent 1/4 TS jack inputs as well as handy attenuation and ground lift switches. Your unbalanced signal is then converted providing you with a balanced output from the rear XLR connectors for use with mixers PA systems consoles and more. Each channel also has two extra controls. Knobs for Level and Pan enable you to mix your four signals and send a summed version to your desired location from the RCA Aux Out on the rear panel. This is perfect for creating your own independent monitor mix. The DI4s DI and line mixing capabilities can be used simultaneously providing you with plenty of options from a single rugged 1/2 RU enclosure. 2-in-1 direct box and line mixer Signal conversion and stereo line mixing in one handy enclosure. The dbx DI4 puts four fully independent DI box units in your hands for converting your unbalanced signals into balanced outputs. These balanced signals are suitable for routing into your mixer PA system studio console and more. Each DI channel features a 1/4 unbalanced jack input ground lift switch and attenuation switch on the front. On the back youll find balanced XLR outputs with numbers corresponding to the front channels. Theres also a stereo RCA Aux Out which enables you to send your signals out when creating your own independent monitor mix. This is where the DI4s use as a stereo line mixer comes in. Back on the front panel you can use the units independent level and pan controls on each channel to control the overall mix at the aux output. On top of all of this theres also a headphone output with its own dedicated level control for hassle-free monitoring. Features 4-channel DI box with versatile usability for a variety of audio applications Solves the problem of converting unbalanced signals into balanced output for use with mixers Pas consoles and more Can also function as a multi-channel stereo line mixer for creating your own independent monitor mix Four completely independent DI box units housed in a single 1/2 RU enclosure Independent 20dB pad switch and ground lift switch per channel Independent volume control and pan control per channel for line mixer output Master volume control Headphone output Specifications Audio Inputs: Number of Connectors: 4 Connector: 1/4 TS jack Input Type: Unbalanced Input Impedance: 320k Ohms Peak Input Level: +15dBu Stereo Line Mixer Outputs: Connection: RCA Output Impedance: 600 Ohms Maximum Output Level: +16dBu Outputs: Number of Connectors: 4 Connector: Male XLR Output Type: Balanced XLR Pin Assignment: Pin 2 – hot Maximum Output Level: +15dBu Frequency Response: 20Hz – 20kHz 0dB to -2dB THD+N: 0.0008-percent typical at +4dBu 1kHz Interchannel Crosstalk: <-90dB 20Hz – 20kHz Dynamic Range: 129.5dB (A-weighted) Power Requirements: 9V DC external power adapter Power Consumption: 775mW Power Adapter Model: PS0913DC-04 (UK US JA EU AU) Dimensions: 44.5mm x 230.6mm x 217mm / 1.75 x 8 x 8.5 Weight: 1.75kg / 3.85lbs