Pyle PDC22 is a necessity if you are looking for the higest quality of sound with low distortion noise and eliminate ground loops. A DI unit DI box Direct Box Direct Input Direct Injection or simply DI is an electronic device that connects a high impedance line level unbalanced output signal to a low impedance mic level balanced input usually via XLR connector. DIs are frequently used to connect an electric guitar or electric bass to a mixing consoles microphone input. The DI performs level matching balancing and either active buffering or passive impedance bridging to minimise noise distortion and ground loops. DIs do not perform impedance matching. Pyle has been in business for over 35 years and their manufacturing experience and expertise is easy to see - and hear. DETAILSFeatures: Two High-Quality Direct Boxes In One Convenient Enclosure Enables to Tap Off the Signals from Amplifiers such as Guitar or Power Amplifier Provides the Facility for the Direct Insertion of an Audio Signal into Mixer or Recorder 1/4 Device Connector Ultra-low Noise and Distortion Connects All Kinds of Audio Signals like Guitars Keyboards etc. Suitable for Outboard Signal Processors & High-Powered Speaker Enables to Tap Off the Signals w/out Affecting the Original Sounds Useful for Connecting Unbalanced Signals from Sources like Signals DJ and Sub Mixers Provides a Clean Signal at a Low Level Plug-in Guitar Directly into the PA System Easy to Use Passive Electronic Device Controls Hum and Buzz from Stage with the Ground Lift Heavy Duty 14 Gauge Steel Construction Bi-Directional Impedance Matching What’s In The Box: Premium Direct Injection Audio Box Technical Specs: Frequency Response: 5-35 KHz -3dB Noise Level: -104dBu THD: 0.013% Input Impedance: 50K Ohm Max.Input Level: +8.1 dBu (9V Batt) +11.3 dBu (48V Phantom) Instrument Input: 1/4 Phone Jack unbalanced Parallel (link) Out: 1/4 Phone Jack unbalanced Balanced Output: XLR Connector balanced Ground Lift: Switch-Able Ground Lift Input Attenuation: Switch-Able (0db -20db-40db) Construction Material: All Steel Chassis Product Dimensions: 5.51 x 4.72 x 1.57 -inches Whats In The BoxPremium Direct Injection Audio BoxSpecificationPyle PDC22 is a necessity if you are looking for the higest quality of sound with low distortion noise and eliminate ground loops. A DI unit DI box Direct Box Direct Input Direct Injection or simply DI is an electronic device that connects a high impedance line level unbalanced output signal to a low impedance mic level balanced input usually via XLR connector. DIs are frequently used to connect an electric guitar or electric bass to a mixing consoles microphone input. The DI performs level matching balancing and either active buffering or passive impedance bridging to minimise noise distortion and ground loops. DIs do not perform impedance matching. Pyle has been in business for over 35 years and their manufacturing experience and expertise is easy to see - and hear.