Pyle Premium Direct Injection Audio Box - 2.36" X 4.09" Passive Di Unit Hum Pylepro model: Pdc211/4'' Instrument to balanced Unbalance1/4'' Instrument to balanced unbalanced (1/4''/XLR) direct box construction: All steel chassis ground lift: switch-able ground lift balanced output: 600 balanced XLR jack instrument input: 50K unbalanced TS jack parallel (link) out: 50K unbalanced TS jack input attenuation: switch-able (0dB, -20dB,-40dB) dimension: 4.72'' X 3.01'' X 1.77''The dc-21 is one of the most useful and versatile tools available indispensable in enabling easy interfacing and connection between various audio gear in numerous applications.Pyle PDC21 is a necessity if you are looking for the biggest 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 console's microphone input. The DI performs level matching, balancing, and either active buffering or passive impedance bridging to minimize 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. Product Features OE ? DEVICE CONNECTOR: Provides a variety of DI solutions with its OE inch device connector and detachable AC power cord for live sound recording applications. It allows you to easily connect keyboards, guitars outboard signal processors PROVIDES CLEAN AUDIO: Useful for connecting unbalanced signals from sources submixers, effects processors keyboards to a main PA or recording mixer. This impedance transformer also has buzz hum cancellation ability EASILY CONNECTS INSTRUMENTS: Getting the signal of a musical instrument to the PA system is easier with this direct box. Just connect the electric bass, guitar, keyboard or other processors to the ground lift adapter enjoy pure clean audio VERSATILE DIRECT BOX: Aside from music instruments, the DI unit can also be connected to the line output of a boom box or consumer stereo system if you want to sample old records. The hum eliminator is used for connecting unbalanced devices as well Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!