Continue Shopping View Cart
Markertek - The Future of Broadcast Supply

Call 800-522-2025
M-F 8:30am - 7pm EST

Employee-Owned-Banner

Secure LoginClose X

Returning Markertek Customers

New Markertek Customers





Why Create an Account?

Creating a Markertek account now will save you time on future orders. You'll have full access to your order history and a personalized shopping experience.

 
Jensen Transformers
 

Need Assistance?

Get unbiased, vendor-neutral advice from actual broadcast & pro-audio professionals.

  • Online:
  • Contact Us
  • By Phone:
  • Toll Free: 800-522-2025
    (USA, Canada, Mexico, Caribbean)
    International: 845-246-3036
    Fax:: 845-246-1757

    Hours of Operation:
    8:30am - 7:00pm Eastern
    Monday - Friday

View As:

Sort By:

Display:

Jensen Transformers:

Page:

►►
    ◄◄
     
     
     
    • Jensen DIN-2LI Dual 10k to 10k 1:1 Line Input Module

      Jensen DIN-2LI Dual 10k to 10k 1:1 Line Input Module

      The Iso-Max DIN-2LI is a two channel line input isolator designed to eliminate noise in professional balanced audio systems by isolating the input of the connected device. The design begins with a gray molded assembly made from UL94-VO flame retardant Noryl that snaps into place onto a standard 35 mm DIN rail for easy installation in a NEMA enclosure. Connections to and from the module are made via removable screw-down wire terminals. Plug and play easy to use, this passive interface does not...

      Free Ship Banner

      Read More

      Item #: DIN-2LI

      Availability: In Stock

      Our Price: $219.99

      Add to Wishlist
    • Jensen CI-2RR IsoMax Stereo Audio Isolator & Hum Eliminator

      Jensen CI-2RR IsoMax Stereo Audio Isolator & Hum Eliminator

      The Iso Max CI-2RR is a passive two channel RCA audio ground isolator designed to eliminate hum and buzz caused by ground loops in the most demanding audio systems. Eliminates hum and buzz caused by ground loops. Extended frequency response from 10 Hz to 40 kHz Less than 2ø phase deviation at 20 Hz Plug and play easy to use - no power required

      Free Ship Banner

      Read More

      Item #: JEN-CI2RR

      Availability: In Stock

      Our Price: $199.99

      Add to Wishlist
    • Jensen PC-2XR 2 Ch Iso-Max Interface

      Jensen PC-2XR 2 Ch Iso-Max Interface

      Features: Stereo "Pro" to "Consumer" Converter / Isolator Provides over 90dB of common mode isolation at60Hz while converting "Pro" +4dBu signals to"Consumer" -10dBV signals Transformer isolation allows maximum interconnection flexibility, since both sources and loads may be either balanced or unbalanced.

      Free Ship Banner

      Read More

      Item #: JEN-PC2XR

      Availability: Direct Ship From Manufacturer

      Our Price: $299.99

      Add to Wishlist
    • Jensen JT-11P-1 Line Input Transformer

      Jensen JT-11P-1 Line Input Transformer

      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. Features: 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 k Ohm with 10 k...

      Free Ship Banner

      Read More

      Item #: JEN-JT11P1

      Availability: In Stock

      Our Price: $62.95

      Add to Wishlist
    • JENSEN JT-DB-E Direct Box Transformer

      JENSEN JT-DB-E Direct Box Transformer

      When loaded by the 1 kS input impedance typical of mic preamplifiers, this transformer has a 140 kS input impedance, making it ideal for high impedance sources. It can be used with or without an active buffer as a "direct box" for electric guitars or synthesizers. A 30 dB magnetic shield package is standard. Features: Converts unbalanced line levels to balanced mic level output Stops "hum and buzz" problems in musical instrument hook-ups Allows use of long cables without high frequency loss High...

      Free Ship Banner

      Read More

      Item #: JT-DB-E

      Availability: In Stock

      Our Price: $69.00

      Add to Wishlist
    • Jensen MI-XX Single Channel Mic Input Isolator

      Jensen MI-XX Single Channel Mic Input Isolator

      The Iso Max MI-XX is a single channel mic input isolator designed to eliminate noise in professional balanced audio systems by isolating the preamp or mixer channel from the mic input. The MI-XX comes standard with XLR input and output. The design begins with a rugged extruded aluminum shell with a slide-in U body that comes standard with gold plated XLR connectors. Inside, a premium Jensen mic input transformer is equipped with dual Faraday internal shields and external MuMETALr cans to reduce...

      Free Ship Banner

      Read More

      Item #: JEN-MI-XX

      Availability: Direct Ship From Manufacturer

      Our Price: $149.99

      Add to Wishlist
    • Jensen GLX Balanced Line Level Isolator

      Jensen GLX Balanced Line Level Isolator

      The GLX is a balanced line level isolator designed to quickly eliminate hum and buzz problems in an audio system by simply inserting it into the signal path. Measuring just over 4" x 1 «" (10 x 4cm), the compact design begins with two super-duty glass-fi lled nylon XLRs at each end with heavy duty nickel-silver contacts that will not tarnish over time. Unlike other isolators that are made of plastic, the GLX is made from solid 16 gauge steel and fi nished in a tough powder coat. The steel outer...

      Free Ship Banner

      Read More

      Item #: JEN-GLX

      Availability: In Stock

      Our Price: $69.99

      Add to Wishlist
    • Jensen JT-10KB-D Line Input Transformer 4:1 Stepdown For BalancedBridging Inputs

      Jensen JT-10KB-D Line Input Transformer 4:1 Stepdown For BalancedBridging Inputs

      This transformer is designed for use in wideband line input stages. The secondary source impedance of only 225 ohms is an excellent match to ultra-low noise amplifiers. The primary is fully balanced and its leads may be reversed to invert polarity, if required. A 30 dB magnetic shield package is standard. Features: Ideal passive "Pro to Consumer" level converter Wide bandwidth: -3 dB at 0.5 Hz and 180 kHz Recommended for levels up to +21 dBu at 20 Hz High input impedance: 40 k ohms High common-mode...

      Free Ship Banner

      Read More

      Item #: JT-10KB-D

      Availability: In Stock

      Our Price: $64.95

      Add to Wishlist
    • Jensen PB-2XX Stereo Audio Input/Output Isolator

      Jensen PB-2XX Stereo Audio Input/Output Isolator

      The Model PB-2XX is designed to provide over 100dB of common mode isolation at 60Hz and to help eliminate R.F. interference from radio and television stations.Transformer isolation allows maximum interconnection flexibility, since both sources and loads may be either balanced or unbalanced. Low impedance windings make this unit suitable for patch bays and as a general purpose "fix-it" box and allow it to be placed near either the output driving source or the destination input. Features: Ruler...

      Free Ship Banner

      Read More

      Item #: JEN-PB2XX

      Availability: Direct Ship From Manufacturer

      Our Price: $349.99

      Add to Wishlist
    • Jensen DM2-2XX Iso-Max Stereo Line Output Isolator 1 to 1 Ratio XLR IN/Out

      Jensen DM2-2XX Iso-Max Stereo Line Output Isolator 1 to 1 Ratio XLR IN/Out

      Features: Ruler flat frequency response preserves "Audiophile Quality" signals High-Grade Nickel-Iron-Molybdenum alloy cores for extremely low distortion High quality gold plated connectors for long term reliability Available with a choice of XLR, RCA, 1/4" Phone Jack or BNC connectors Unpluggable screw terminal strip for easy "Home" to "Road" changeovers Convenient 7.0" W x 3.5" D x 1.6" H allow rack tray or rail mounting Gold Contact DIP Switches allow for flexibility in grounding...

      Free Ship Banner

      Read More

      Item #: JEN-DM22XX

      Availability: Direct Ship From Manufacturer

      Our Price: $269.99

      Add to Wishlist
    • Jensen MS-2XX Dual Channel Stereo Microphone Splitter / Isolator

      Jensen MS-2XX Dual Channel Stereo Microphone Splitter / Isolator

      Features: Ruler flat frequency response preserves "Audiophile Quality" signals High-Grade Nickel-Iron-Molybdenum alloy cores for extremely low distortion Faraday shielded windings for maximum R.F. interference rejection High quality gold plated connectors for long term reliability Available with a choice of XLR, RCA, 1/4" Phone Jack or BNC connectors Un-pluggable screw terminal strip for easy "Home" to "Road" changeovers Convenient 7.0" W x 3.5" D x 1.6" H allow rack tray or rail mounting Gold...

      Free Ship Banner

      2 Types Available

      Item #: JEN-MS2XX

      Availability: Direct Ship From Manufacturer

      Our Price: $269.99

      Add to Wishlist
    • Jensen CI-RJ2R Two Channel RCA to CAT-5 extender

      Jensen CI-RJ2R Two Channel RCA to CAT-5 extender

      The Iso-Max CI-RJ2R by Jensen is a two channel input isolator that lets you extend unbalanced signals to 100 meters (350’) using standard CAT-5 or CAT-6 balanced twisted pair Ethernet cable. Sold as a ‘transmit and receive’ set, the design begins with two rugged flanged steel enclosures for easy mounting under a desk or inside a rack or NEMA enclosure. Each end is equipped with RCA inputs and outputs with a standard Ethernet RJ45 type connector in between. One merely connects the...

      Free Ship Banner

      Read More

      Item #: JEN-CI-RJ2R

      Availability: Direct Ship From Manufacturer

      Our Price: $209.99

      Add to Wishlist
    • Jensen DIN-PB Two Channel Universal Line Isolator

      Jensen DIN-PB Two Channel Universal Line Isolator

      The Iso-Max DIN-PB is a universal isolator that gives you the freedom to solve noise problems anywhere in the signal chain. The design begins with a gray molded assembly made from UL94-VO flame retardant Noryl that snaps into place onto a standard 35 mm DIN rail for easy installation in a NEMA enclosure. Connections to and from the module are made via removable screw-down wire terminals. Plug and play easy to use, this passive interface does not require any power to work. Inside is a specially...

      Free Ship Banner

      Read More

      Item #: DIN-PB

      Availability: In Stock

      Our Price: $179.99

      Add to Wishlist
    • Jensen JT-6110K-B Line Input Transformer 4:1 Stepdown

      Jensen JT-6110K-B Line Input Transformer 4:1 Stepdown

      4:1 Stepdown for "Balanced Bridging" Inputs This transformer is designed for use in wide band line input stages. The secondary source impedance of only 87 Ohm is an excellent match to ultra-low noise amplifiers. The primary is fully balanced and its leads may be reversed to invert polarity, if required. A 30 dB magnetic shield package is standard. Features: Our highest level handling input transformer Wide bandwidth: -3 dB at 0.15 Hz and 120 kHz Recommended for levels up to +26 dBu at 20 Hz High...

      Free Ship Banner

      Read More

      Item #: JT-6110K-B

      Availability: Direct Ship From Manufacturer

      Our Price: $89.99

      Add to Wishlist
    • Jensen PO-XX Line Output - Single Channel Ground Isolator for High Output Professional Line Level Signal

      Jensen PO-XX Line Output - Single Channel Ground Isolator for High Output Professional Line Level Signal

      The Iso-Max PO-XX is a single channel output isolator for both balanced and unbalanced signals where extreme signal handling is required to drive long cable runs. The design begins with an extruded aluminum case that comes standard with gold plated XLR connectors. Plug and play easy to use, this passive interface does not require any power to work. Inside is a high performance nickel core Jensen transformer that is able to withstand signals in excess of +26 dBu without discernible distortion...

      Free Ship Banner

      Read More

      Item #: JEN-PO-XX

      Availability: Direct Ship From Manufacturer

      Our Price: $149.99

      Add to Wishlist
    • Jensen CI-1RR IsoMax Mono Audio Isolator

      Jensen CI-1RR IsoMax Mono Audio Isolator

      Single Channel Audio Input Isolator Ideal for use with Sub-Woofers and Mono-Block Amplifiers where use of a stereo unit would be impractical Features: Ruler flat frequency response preserves "Audiophile Quality" signals High-Grade Nickel-Iron-Molybdenum alloy cores for extremely low distortion Faraday shielded windings for maximum R.F. interference rejection High quality gold plated connectors for long term reliability

      Free Ship Banner

      Read More

      Item #: JEN-CI1RR

      Availability: In Stock

      Our Price: $129.99

      Add to Wishlist
    • Jensen DIN-2LO-11FL Din Rail 2 Channel Line Output Transformer

      Jensen DIN-2LO-11FL Din Rail 2 Channel Line Output Transformer

      1:1 BIFILAR WINDINGS This module is designed for high performance line output stages. The 50% nickel alloy core gives it excellent distortion and level handling at a cost allowing many applications to enjoy the advantages of an output transformer. Driving signals should be free of DC and source impedance kept as low as possible. Features: Distortion 0.035% typ at 20 Hz and +4 dBu output level Wide bandwidth: !3 dB at 0.2 Hz and 15 MHz Drives 600 S loads to levels up to +21 dBu at 20 Hz Excellent...

      Free Ship Banner

      Read More

      Item #: DIN-2LO-11FL

      Availability: Direct Ship From Manufacturer

      Our Price: $149.99

      Add to Wishlist
    • Jensen Transformers DIN-2MS-2P Dual Mic Splitter Module

      Jensen Transformers DIN-2MS-2P Dual Mic Splitter Module

      2 CHANNEL 2 WAY with DUAL FARADAY SHIELDS Provides additional, isolated balanced output as mic "splitter" Solves "transformerless" preamp RFI and CMRR problems High common-mode rejection: 130 dB at 60 Hz Excellent frequency response and time domain performance Provides support circuitry for phantom powered microphones This module is designed to be driven from a 150 S microphone source and loaded by the typical 1 kS input impedance of microphone preamplifiers. It can be used with balanced...

      Free Ship Banner

      Read More

      Item #: DIN-2MS-2P

      Availability: Direct Ship From Manufacturer

      Our Price: $219.99

      Add to Wishlist
    • Jensen Transformers DIN-DB 12:1 Direct Box

      Jensen Transformers DIN-DB 12:1 Direct Box

      When loaded by the 1.5 k Ohm input impedance typical of mic preamps, this module has a 200 kS input impedance, making it ideal for high impedance sources. It can be used with or without the input and output attenuator pads to accommodate a wide range of signal levels. A 30 dB magnetic shield package is standard. Features: Converts line levels to balanced mic level output Stops "hum and buzz" problems in musical instrument hook-ups Allows use of long cables without high frequency loss High common-mode...

      Free Ship Banner

      Read More

      Item #: DIN-DB

      Availability: Direct Ship From Manufacturer

      Our Price: $139.99

      Add to Wishlist
    • Jensen DIN-LI Din Rail 10k to 10k 1:1 Line Input Module

      Jensen DIN-LI Din Rail 10k to 10k 1:1 Line Input Module

      The Iso-Max DIN-LI is a single channel line input isolator designed to eliminate noise in professional balanced audio systems by isolating the input of the connected device. The design begins with 35 mm DIN rail molded in gray UL94-VO flame retardant Noryl format that snaps into place for easy installation in NEMA enclosures via removable screw-down wire terminal. Plug and play easy to use, this passive interface does not require any power to work. Inside is a Jensen high performance transformer...

      Free Ship Banner

      Read More

      Item #: DIN-LI

      Availability: Direct Ship From Manufacturer

      Our Price: $139.99

      Add to Wishlist
    • Jensen DIN-LO-11DM 600 to 600 1:1 Line Output Module

      Jensen DIN-LO-11DM 600 to 600 1:1 Line Output Module

      This module is designed for very high performance line output stages. Specially processed 80% nickel core alloy is used for lowest possible harmonic distortion of high level low frequency signals. For best performance, driving signals should be free of DC and source impedance kept as low as possible. Features: Distortion 0.004% typ at 20 Hz and +4 dBu output level Wide bandwidth: !3 dB at 0.10 Hz and 15 MHz Drives 600 S loads to levels up to +22 dBu at 20 Hz Excellent time domain performance:...

      Free Ship Banner

      Read More

      Item #: DIN-LO-11DM

      Availability: Direct Ship From Manufacturer

      Our Price: $159.99

      Add to Wishlist
    • Jensen DIN-LO-11FL 600 to 600 1:1 Line Output Module

      Jensen DIN-LO-11FL 600 to 600 1:1 Line Output Module

      +21dBu Level Handling, 0.035% THD This module is designed for high performance line output stages. The 50% nickel alloy core gives it excellent distortion and level handling at a cost allowing many applications to enjoy the advantages of an output transformer. Driving signals should be free of DC and source impedance kept as low as possible. Specifications: Distortion 0.035% typ at 20 Hz and +4 dBu output level Wide bandwidth: !3 dB at 0.2 Hz and 15 MHz Drives 600 S loads to levels up to +21...

      Free Ship Banner

      Read More

      Item #: DIN-LO-11FL

      Availability: Direct Ship From Manufacturer

      Our Price: $99.99

      Add to Wishlist
    • Jensen DIN-MS-2P Microphone Splitter Module

      Jensen DIN-MS-2P Microphone Splitter Module

      Single channel, two way microphone splitter,including circuitry required to implement phantom powering of microphones. This module is designed to be driven from a 150 Ohm microphone source and loaded by the typical 1 k Ohm input impedance of microphone pre-amplifiers. It can be used with balanced or unbalanced sources and/or loads since both primary and secondary are fully balanced. A 30 dB magnetic shield package is standard. Features: Provides additional, isolated balanced output as mic "splitter" Solves...

      Free Ship Banner

      Read More

      Item #: DIN-MS-2P

      Availability: Direct Ship From Manufacturer

      Our Price: $139.99

      Add to Wishlist
    • Jensen DIN-MS-3P 3 Way Mic Splitter w/Phantom Support Circuitry

      Jensen DIN-MS-3P 3 Way Mic Splitter w/Phantom Support Circuitry

      This module is designed for drive from a 150 S microphone source and for each secondary to be loaded by the input impedance of typical microphone preamplifiers. Circuitry is included to facilitate the use of an external phantom power supply. A 30 dB magnetic shield package is standard. Features: Provides 2 additional, isolated balanced outputs as mic "splitter" Stops "ground loop" problems when mic feeds multiple preamps High common-mode rejection: 130 dB at 60 Hz Excellent frequency response...

      Free Ship Banner

      Read More

      Item #: DIN-MS-3P

      Availability: Direct Ship From Manufacturer

      Our Price: $159.99

      Add to Wishlist
    • Jensen CI-2MINI Iso-Max PC Audio Ground Isolator

      Jensen CI-2MINI Iso-Max PC Audio Ground Isolator

      When used in unbalanced audio consumer interfaces, this isolator not only eliminates hum and buzz but also enhances audio quality by reducing "spectral contamination" due to ultrasonic and RF interference. To avoid excessive high frequency losses, no more than 3 feet of cable should be used on its outputs. Features: Eliminates the inherent ground noise coupling mechanism Common-mode ground noise rejection of 95 dB at 60 Hz Wide bandwidth: !3 dB at 0.25 Hz and 50 kHz Handles signals up to 7 volts...

      Free Ship Banner

      Read More

      Item #: JEN-CI2MINI

      Availability: Direct Ship From Manufacturer

      Our Price: $199.99

      Add to Wishlist
     

    Page:

    ►►
      ◄◄
       
       
       
       

      Founded in 1974 Jensen Transformers, Inc., is a manufacturer and developer of high performance audio transformers. Tens of thousands of Jensen transformers are in use today throughout the world, and maintain a flawless reputation for superior quality and reliability. The company has extended its engineering expertise to the production of related electronic products that adhere to the basic philosophy of uncompromised high performance.

      Strict quality controls are maintained over every facet of production from raw materials through final test to ensure that Jensen products are the best available. Each transformer is rigorously tested both before and after encapsulation. Certified testing, including serialized printouts of all measurements on each unit, is available.

      Markertek is an authorized dealer for the entire Jensen Transformers line. If you don't see what you're looking for, contact us and we'll do our best to get it for you.

       
      Please fill out the information below
      Email Address*