Jensen Transformers Concert-2 Two Channel Direct Box

ITEM #: JEN-CONCERT-2 MFG #: CONCERT-2

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CONCERT-2 - Overview

The Iso-Max Concert-2 is a stereo direct box designed to drive unbalanced instrument signals distances to 100 meters (300') or more without high frequency loss or introducing noise into the signal path.

The design begins with a rugged extruded aluminum enclosure and steel slide-in inner tray with recessed zones at each end to protect the switches and connectors. At one end, left and right ¬" instrument inputs and thru-puts are wired in parallel with a handy 3.5mm mini TRS for laptops and tablets. A -15dB pad decreases input sensitivity for greater signal handling when interfacing line level sources. At the other end, two XLR male outputs with ground lift makes for easy connection.

Inside, two high-performance Jensen JT-DB-EPC transformers provide galvanic isolation as they passively lower the impedance and perform the balancing. A high 140 k? input impedance reduces loading, enabling low-output instruments such as a vintage Fenderr bass to be connected without losing tone. As hi-Z instruments are particularly sensitive to noise, internal Faraday shielding protects against interference from RF. An external MuMETALr can further protects the sensitive internal workings to ensure a quiet interference-free performance even when surrounded by magnetic fields from amplifiers, power supplies and stage light dimmers.

With over +22 dB of signal handling capacity, the Concert-2 direct box gracefully handles extreme signals such as those produced by digital pianos while producing a warm Bessel response that is often referred to as `vintage' sounding. These features combine to make the Concert-2 the ideal choice for studio or live use.

  • Features:

    • Converts unbalanced instrument signal to balanced mic level
    • Eliminates hum and buzz caused by ground loops
    • Ruler flat frequency response from 10 Hz to 100 kHz
    • Plug and play easy to use, no power required
     
  • Specifications:

    • Primary application: Converting Hi-Z signals to balanced mic level
    • Frequency response: 20 Hz to 20 kHz
    • Max signal handling: +24 dBu @ 20 Hz
    • CMRR noise rejection: 80 db @ 60 Hz
    • Standard connectors: 1/4" and 3.5 mini TRS inputs, XLR-M outputs
     
  • Warranty:

    • 3-year, transferable
     

CONCERT-2 - Required Accessories

    California Residents:
    WARNING:
    Cancer and Reproductive Harm - www.P65Warnings.ca.gov