Tapco Passive DI Box w/ Durable Chassis

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Tapco DB-1P Passive DI Box

Not every instrument is made to connect directly to a mixer. Guitars and basses have a lower output signal level, and their output is not balanced. If you plug them straight into a mixer, you have to jack the preamp level to the max just to get a quiet, wimpy sound. Most keyboards have unbalanced outputs, which means if you try to use long cables, they can pick up all sorts of noise. Direct Injection Boxes solve these and other sticky studio and live difficulties.

DB Series common features
The DB Series direct boxes convert unbalanced line-level signals to balanced mic-level output and provide signal and impedance matching for the direct connection of instruments like guitars, basses and keyboards to amplifiers and mixers. This lets you use send your instrument signal through long cables or audio snakes without picking up interference and without high-frequency loss. A 1/4'' Input jack is provided for connecting instrument or speaker-level signals, and a separate 1/4'' Thru jack allows the unbalanced signal to be sent to an onstage amplifier while the balanced signal is sent to a mixer. A ground Lift switch helps eliminate hum and buzz problems in musical instrument hookups.

DB-1P The DB-1P is a passive direct box that features:

INPUT - Connect the signal source to this 1/4'' unbalanced TS jack.
INST/AMP - Lets you optimize for instrument signals or amplifier outputs.
FLAT/FILTER - Useful for eliminating hiss when connected to an amplifier output.
THRU - This 1/4'' input lets you connect an instrument to an amplifier onstage.
OUTPUT - This balanced XLR jack provides a low-impedance mic-level signal for connecting to a microphone input on a mixer.
GND/LIFT - Helps to eliminate buzz and hum due to ground loops in the sound system.