Warm Audio WA-DI-P Transformer-Balanced Passive Direct Box

Preserve Your Tone
Warm Audio’s active and passive DI boxes are designed and built to deliver premium performance, from the inside-out. On the inside, you’ll find 100% Class-A circuitry using premium components, but the star of the show is a custom USA-made CineMag transformer, included in both passive and active models. The transformer ensures that any analog color and character from your instrument or signal chain is preserved before hitting any mixers or audio interfaces. On the outside, a selectable -3 - -30dB pad helps dial-in your ideal signal volume and ground/lift switch helps eliminate ground-loop noise. The active version adds 48v phantom power via dual 9v batteries. The active DI can also be switched to passive mode for added versatility.

Pro Direct Sound: Studio & Stage
Warm Audio DI Boxes allow you to run the high-impedance signals from guitar, bass, and keyboards directly into low impedance mic preamps, mixers, interfaces or to send signal over extended cable runs without losing volume, tone, and significant high-frequency information. Warm Audio's road-worthy DI Boxes are the professional solution for this common mismatch, ensuring you won't diminish the tone of your instrument or performance.

Electric Guitar - Direct Electric Guitars
Record electric guitars direct to audio interfaces with both passive & active DIs. Active DIs work great with passive electric guitars that don’t have active pickups.

Electric Bass - Direct Bass Signals
Send clear, balanced signal from bass guitars even while plugged into a bass amp.

Electric Keys & Synths - Keys For Stage & Studio
Take unbalanced keyboard outputs and convert to clear, balanced signals for recording or FOH.

Acoustic Guitar - Direct, Clear Acoustic Guitar
Use passive DIs for active electric-acoustic guitars (with batteries).

• Variable Pad
  The variable pad on the DI boxes is designed to help properly set levels from the DI to the mixer or audio interface. If distortion is audible, engage the bad and begin to apply attenuation until the signal is loud and clear.
  
• Phase Switch
  The Phase switch reverses the polarity of the signal, correcting potentially poorly wired cables and eliminating phase-related noise issues. 
  
• AMP OUT/INSTRUMENT Switch
  The “instrument” setting on the switch works with all types of instruments using ¼” outputs. When using a signal from a guitar amplifier is desired, switch to “amp out” switch to send your amplified guitar signal to the DI and then out via the XLR output. 
  
• Ground Lift
  Eliminate noise like hum and buzz caused by ground-loop issues. As more pieces of equipment connect to various power supplies, the chance of ground-loop hum issues increase.
• Hand-Tested, Elite Build Quality
  Both active and passive DIs are encased in a two-piece aluminum chassis, tough enough to be run over by a truck. Every single Direct Box is meticulously hand tested & inspected at Warm HQ in Austin,TX by real musicians and engineers with passion for superior sound.

• Transformer-Balanced Active Direct Box
• Converts Instruments To Mic-Level Signals Without Signal Degradation
• Ideal Solution For Plugging Your Instrument Direct Into Any Mic Pre
• Rugged Aluminum Construction
• Pad: Variable From -3dB To -30dB
• Measurement: 5-1/4" X 4-15/16" X 1-7/8"
• Custom-Wound CineMag USA Output Transformer
• Top-Quality Class-A Components With Gold-Plated Traces On Circuit Board
• Balanced Output: 600 Ohms, Mic Level
• Input Impedance: 1 Meg Ohms
• Passive THD: .01% From 20Hz To 100 Hz. Less Than .004% From 100 Hz To 20 kHz
• Passive Frequency Response: 20hz To 70 kHz +/- 0.5dB