Check the listing for details. Klark Teknik DI AV 22P 2-channel Passive Direct Box with Midas Transformer. Condition: New. Listed at 70.90 USD. Powerfully Pristine Audio Boasting massive headroom, dynamic range, and sonic clarity, the Klark Teknik DI 22P has you covered. As a passive device, there's no need to connect to phantom power with XLR chords that clutter your stage or studio. Sweetwater techs love the ultra-low noise circuitry that gives the DI 22P a high headroom and a wide dynamic range to silently and effectively capture the instrument, sampler, or other balanced stereo source you've got plugged in. Not to mention, you can also connect stereo sources such as MP3s, CD players, drum submixers, and more. You can also take this passive box with you anywhere: the rubber corner bumpers and thick, rugged aluminum housing give the DI 22P the ability to withstand the bumps and bruises of life on the road or in the studio.