JK Audio Interchange LTD Intercom Phone Bridge + Digital Hybrid Interface

SKU: JKINTCHGLTD MFR: INTCHGLTD
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Key Features

  • Enhance your audio with this digital hybrid interface, perfect for broadcast-quality sound.
  • Achieve seamless intercom integration using this phone bridge for crystal-clear communication.
  • Enjoy low latency and high-quality audio for professional studio and recording environments.
  • Connect effortlessly with XLR and RJ-11 interfaces, ensuring compatibility with your setup.
  • Experience reliable driver stability for uninterrupted audio, ideal for live broadcasts.
  • This JK Audio interface offers robust build quality, ensuring durability for demanding use.
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Special Order?Estimated to Ship: 08/17/2025
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JK Audio Interchange LTD Specifications

  • Intercom Channel

    Male & female 3-pin XLR

  • Output Level

    -10 dBu (250 mV RMS) nominal

  • Minimal Terminating Impedance

    200 Ohms

  • Bridging Impedance

    >15 kOhms

  • Pin Assignments

    Pin 1: Common
    Pin 2: Audio +30 VDC (+12 VDC min) 50 mA
    Pin 3: Audio

  • Line Out

    Balanced female XLR

  • Impedance

    200 Ohms

  • Level

    500 mV RMS (-4 dBu nom, +12 dBu max)

  • Headset Interface

    Connection: 1/8" (3.5 mm TRRS)

  • Frequency Response

    Wireless Interface: 50 Hz to 7 kHz (HD Voice)
    Telephone Side: 200 to 3600 Hz

  • Miscellaneous Features

    Ringer: 0.8 B REN

  • Isolation

    1500 VAC

  • Dimensions (L x W x H)

    19 x 5.4 x 1.75" (48.3 x 13.7 x 4.4 cm)

  • Weight

    2.4 kg (5.2 lbs)

  • UPC Code

    814170010925

About JK Audio Interchange LTD

Find the ultimate solution for integrating your phone line with your intercom system using the Interchange LTD Intercom Phone Bridge + Digital Hybrid Interface. This sophisticated 1RU rackmount device is designed to seamlessly connect to analog (POTS) phone lines, offering advanced functionality for professionals in the audio and communications fields.

The Interchange LTD interface boasts a high-quality digital hybrid system that enables the conversion of analog audio signals to pristine digital format, ensuring clear and uninterrupted communication. With its innovative design, this interface is perfect for users who require a versatile and reliable connection between various audio sources and their digital equipment.

Featuring an XLR input, this interface allows for direct connection of microphones or other audio sources, while the RJ-11 (phone line) input facilitates the integration of phones or line-level audio sources. Additionally, the headphone output provides real-time audio monitoring capabilities, making it an essential tool for audio professionals.

The front panel of the Interchange LTD interface is equipped with a DTMF keypad and a headset jack, simplifying the process of making calls or setting up conference connections. Whether you're using a wireless phone, tablet, or computer, remote access to your party-line intercom system is made effortless.

The innovative Listen-Always design of this interface ensures that users can continuously monitor the intercom system, akin to the functionality of a standard belt pack. With high impedance bridging tap, the Listen mode maintains the integrity of the audio signal. The Talk mode can be easily managed via a front panel switch, offering Off, On, or Auto options, with Auto mode complementing the phone hybrid's Auto-Answer feature.

The internal digital hybrid of the Interchange LTD interface is a testament to its sophisticated engineering. It eliminates the common issue of transmit/receive crosstalk found in analog hybrids. The device's DSP diligently monitors both the phone line and audio signals, delivering exceptional separation that typically exceeds 50 dB. This is achieved through a proprietary dual-convergence echo canceller algorithm that requires no setup and avoids sending disruptive noise bursts down the line.

Choose the Interchange LTD Intercom Phone Bridge + Digital Hybrid Interface for a professional and innovative audio solution that offers unparalleled versatility and high-quality performance for your digital audio needs.

JK Audio Interchange LTD Features

  • HD Voice Compatible (7 kHz Wide-Band Speech)
  • Male and Female 3 Pin XLR Intercom Loop Jacks
  • Male XLR Mix Line Out for Monitoring
  • Send and Receive LED Metering
  • Front Panel Screwdriver Level Controls
  • Front Panel Channel Select
  • Front Panel Cell Phone Interface
  • Front Panel TRRS Monitor Headset Jack with Volume Control
  • Listen Always, Talk when Talk-Enabled
  • Auto-Answer
  • 16-bit DSP Technology
  • Front Panel Off-Hook LED
  • Send and Caller Signal Level LEDs
  • DTMF Keypad with Redial
  • Rack Mountable
  • Made in America

Product Documents

User Manual

Key Features

  • Enhance your audio with this digital hybrid interface, perfect for broadcast-quality sound.
  • Achieve seamless intercom integration using this phone bridge for crystal-clear communication.
  • Enjoy low latency and high-quality audio for professional studio and recording environments.
  • Connect effortlessly with XLR and RJ-11 interfaces, ensuring compatibility with your setup.
  • Experience reliable driver stability for uninterrupted audio, ideal for live broadcasts.
  • This JK Audio interface offers robust build quality, ensuring durability for demanding use.

What's in the box:

  • Interchange LTD Intercom Phone Bridge + Digital Hybrid Interface
  • JK Audio 2 Year Limited Warranty