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Jensen Transformers JT-11P-1 Line Input Transformer

1:1 for "Balanced Bridging" Inputs, ideal for balancing any high-impedance unbalanced input

Made in the USA
Jensen Transformers JT-11P-1 1:5 Microphone Step-Up Transformer

Jensen Transformers JT-11P-1 1:5 Microphone Step-Up Transformer

With its Faraday-shielded input transformer, the Jensen Transformers JT-11P-1 can eliminate hum and buzz in line-level signals.  Ultra-low DLP (deviation from linear phase) and time-domain distortion are the result of Bessel-tailored high-frequency and extended low-frequency responses.  The internal Faraday shielding ensures unmatched immunity to hum, buzz, and RF interference (high CMRR).

Whereas transformerless inputs suffer “breakthrough” noise in electrically-hostile environments, inputs using these transformers are unaffected. Ultra-sonic “hard digital edge” artifacts are removed from signals by the controlled high-frequency response of the transformers, resulting in a unmatched sonic clarity.  The JT-11P-1 is enclosed in a MuMETAL® magnetic shielding can to further reduce hum caused by nearby magnetic fields.

Several turns ratios are offered to optimize noise performance with various input stage designs. Extremely high dynamic range can be delivered, up to 140 dB, in real-world system environments. 

With inferior products coming from all over the world, we think it is a genuine treasure to find a company like Jensen Transformers, actually designing and manufacturing some of the finest products in the world, right here in the USA, and we are proud to be able to offer their products. The JT-11P-1 is made in the USA, is backed by the manufacturer's comprehensive one-year warranty, and has a remarkable 20-year warranty on the transformer device itself.

Jensen Transformers' Description

Jensen Transformers JT-11P-1

Line Input Transformer

1:1 for "Balanced Bridging" Inputs

  • Ideal for balancing any high-impedance unbalanced input
  • Wide bandwidth: -3 dB at 0.25 Hz and 95 kHz
  • Recommended for levels up to +20 dBu at 20 Hz
  • High input impedance: 13 kΩ with 10 kΩ load
  • High common-mode rejection: 107 dB at 60 Hz

This transformer is designed for use in wideband line input stages. Distortion remains very low and CMRR remains high, even when driven by high source impedances. The primary is fully balanced and its leads may be reversed to invert polarity, if required. A 30 dB magnetic shield package is standard. 

Jensen Transformers JT-11P-1 front view

JT-11P-1 height is 1.03", diameter is 1.13".

Jensen Transformers JT-11P-1 with mounting bracket

Here the JT-11P-1 is shown with the included mounting L-bracket.
Also available with Threaded Bushing mounting style by special order (below).

Jensen Transformers JT-11P-1, included items

Shown here are the included items

Jensen Transformers JT-11P-1 Data Sheet - click to download PDF

Here is the JT-11P-1 spec sheet.  PDF format.

Purchase Information
Product Description SKU MSRP Your Price Quantity
Jensen Transformers Line Input Transformer, 1:1 for "Balanced Bridging" Inputs, Wire Leads
(as shown)
JT-11P-1 $70.00 $66.50
Jensen Transformers Line Input Transformer, 1:1 for "Balanced Bridging" Inputs, Wire Leads, Threaded Bushing mounting style
(not shown - Special Order Item)
JT-11P-1TB $70.00 $68.99
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