Whirlwind TRHL
Transformer Hi-Z to Low-Z


Whirlwind's transformers are the product of our desire to supply the highest quality transformers at ANY price. Constructed to rigid quality-control specifications, they are used in the most demanding recording and live sound applications.

We have designed our transformers from the ground up. New core and housing materials, special windings, Faraday shielding, high level-handling capabilities and frequency response were all considerations in design. As a result, we offer three types that fit any audio transformer application.

The TRHL series is designed to convert high impedance signals to low impedance.


  • Input impedance: 20k ohms
  • Output Impedance: 150 ohms
  • Frequency Response: 20-20k ohms
  • THD @ 1 kHz: 0.05%
  • Number of Inputs: 1
  • Number of Outputs: 1
  • Pri to Sec Loss: 22 dB
  • Metal Can: No
  • Faraday Shield: Yes
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