Coil Audio Transformer Options

$149.99
Stock Item, Usually Ships Same or Next Business Day

Stock Item: Ships from our shelf quickly in almost all cases when ordered before our ship cutoff times.

Direct Ship: Non-stock item, but normally ships quickly from the manufacturer or alternate warehouse.

Built To Order: Item is custom built per the options chosen and quickly shipped out upon completion.

More On The Way: The manufacturer is experiencing delays, but we'll ship quickly upon arrival.

New Item: We have this on order, the manufacturer hasn't shipped but you'll be in line upon arrival.

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Models Available

  • CT-110
  • CT-110HN
  • CT-41
  • CT-11

These transformer options are for Coil Audio tube preamp modules to swap for different needs and tone.

The CT-110 is our nickel/iron microphone input transformer based on a punchy 1960s small signal coil. It's perfect for all-around use and excels at high transient material. Its design gives it a very forward and rich mid-range, with smooth saturation in the highs and lows.

The CT-110HN is our super-mu microphone input transformer based on a rare 1950s hi-fidelity coil. Detail oriented, it adds an excellent top and bottom extension, and smooth, breathy saturation.

The CT-41 is our line output (or input) transformer based on a popular 1960s Peerless design. Frequency response is ruler flat from 20Hz to 30kHz, dipping just below 1db at 60kHz. Its smooth saturation imparts a rich, wooly, and hi-fi sound to anything that runs through it.

The CT-11 is our Universal 1:1 line isolation transformer. Based on another 1950s coil design, it imparts a rich, hi-fi sound to any signal. The impressive frequency response of +/- .5db from 20Hz - 60kHz make it an unbeatable performer for isolation or balancing unbalanced signals and devices.

Our ONE WITH EVERYTHING ZEN WARRANTY extends the standard manufacturer warranty by one year, see our ZEN WARRANTY page for details.