Muslady Professional Single Channel Passive DI-Box Direct Injection Audio Box Balanced & Unbalance Signal Converter with XLR TRS Interfaces for Electric Guitar Bass Live Performance - Walmart.com
Livewire PDI Double-Shielded Heavy-Duty Passive Direct Box | Guitar Center
ART pdb Passive DI Box for Active Electric Guitar, Bass & Keyboards | Music Bliss Malaysia
Amazon.com: Radial Pro DI Passive Direct Box : Musical Instruments
What is a DI? - Radial Engineering
Behringer DI20 Ultra-DI Box | Gear4music
ART Professional Active Stereo DI Box - Dual Channel | SWAMP