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Whirlwind PC DI Stereo Line Interface


Product Description

The Whirlwind PC DI is the first direct box designed to interface your unbalanced stereo line sources with professional balanced low impedance equipment. This unit contains 2 separate DIs -- input your signals with one 3.5mm (1/8 in.) mini TRS stereo jack or 2 sets of color coded RCA phono type input and through jacks. Output is via corresponding color coded XLRs. Each section features a ground lift switch to help eliminate hum and a 20dB pad switch for connecting to "hot" signals. Perfect for interfacing with the outputs of CD players, computer sound cards, tape decks, etc.

"If you are using a lap top computer and going into any sound system you will be amazed how this box will improve your sound. I and 50 of my best customers can attest to that," Mike Magdon, Magdon Music, Olyphant, PA.

Each section features
  • Color coded RCA phono in/through jacks
  • Color coded XLR output jacks
  • Ground Lift switch to help eliminate hum and buzz
  • -20dB pad switch for connection to hot input signals
  • Stereo/Mono switch for stereo operation or safely combine both inputs into a mono signal sent to both outputs
  • Uses Whirlwind's TRHL-M transformer with metal shield

Whirlwind pcDI Connections and Switches
Input (RCA phono jacks X 2 and 3.5mm (1/8 inch) stereo TRS jack)
Use to connect the audio outputs of computer sound cards, CD players, tape decks, etc. The RCA phono jacks are color coded – red is usually used as the right side channel in stereo applications. The 3.5mm (1/8 inch) jack is a tip/ring/sleeve type. The tip is common with the + side of the white RCA phono, the ring is common with the + side of the red RCA phono jack and the sleeve is common ground to both.

Thru (RCA phono jack X 2)
Y connections or loop through from the inputs.

Low-Z Balanced Output (XLR jack X 2)
Male XLRs, which provide balanced low impedance (150 Ohms), mic level signals suitable for connection to balanced, low-Z equipment (mixing console, workstation, etc.) The output signal is attenuated approximately 20dB below the input level. These jacks are color coded to match their corresponding inputs.

Pad (Switch X 2)
Most instruments will operate properly when set to the O position. Set to the I position (adds 20dB attenuation to the input signal) for use with very hot signals to reduce the possibility of distortion.

Ground/Lift (Switch X 2)
These switches are usually left in the I position (grounds are connected from input to output). If hum occurs in either channel when using the pcDI, setting that channel’s switch to the O position may help to reduce it. (This disconnects the ground between the input and the corresponding XLR output.)

Stereo/Mono (Switch)
In the Stereo position, each input is sent only to its corresponding output XLR. In the Mono position both inputs are safely summed to BOTH ouput XLRs.

If you are not satisfied with your purchase, please contact us For further info call TOLL FREE 1-888-MAGDON1...1-888-624-3661 Mon - Sat 11am - 4pm Eastern time...Standard shipping rates are for CONTINENTAL USA (LOWER 48) ONLY!

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