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Jensen Transformers Concert-1 Single-Channel Direct Box

Jensen Transformers Concert-1 Single-Channel Direct Box

Special Order
Expected availability: 7-14 business days

Product Highlights

  • For Studio or Live Stage Applications
  • 1/4" Instrument Input
  • 1/4" Instrument Thru
  • 3.5mm TRS Input for Laptops and Tablets
  • Mixes Input and Thru and Sums to Mono
  • XLR Male Output with Ground Lift
  • 180° Polarity Switch
  • High-Performance Jensen Transformer
  • Rugged Aluminum Enclosure
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Channels: Single Channel

Single Channel Two Channels

Special Order

This item is noncancelable and nonreturnable.

$0 VA Sales Tax Collected on This Item
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Jensen Transformers CONCERT-1 Overview

  • 1Description

The Concert-1 Single-Channel Direct Box from Jensen Transformers is designed to drive an unbalanced instrument signal to distances up to 300' or more without high-frequency loss or introducing noise into the signal path.

This direct box is built with a rugged aluminum enclosure and steel slide-in inner tray with recessed zones at each end to protect the switches and connectors. It features a 1/4" instrument input, a 3.5mm TRS input for a computer, MP3 player, or smartphone, a 1/4" thru output, and a XLR output with ground lift. There is also a 180° polarity switch for each channel.

Inside, a high-performance Jensen JT-DB-EPC transformer provides isolation as it passively lowers the impedance and performs the balancing for the channel.

In addition, with over +22 dB of signal handling capacity, the Concert-1 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-1 Single-Channel Direct Box the ideal choice for studio or live use.

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
In the Box
Jensen Transformers Concert-1 Single-Channel Direct Box
  • Limited 3-Year Warranty
  • Table of Contents
    • 1Description

    Jensen Transformers CONCERT-1 Specs

    Audio Circuit Type Passive Transformer Isolated
    Frequency Response 10 Hz to 40 kHz
    Total Harmonic Distortion (THD) + N 0.05% @ 20 Hz with -10 dBV Input Level
    Input Impedance 140 kOhms
    Maximum Input +21 dBu @ 20 Hz
    Output Impedance 150 Ohms (Balanced)
    Phase Deviation -1.2 / -0° (+4 dB)
    Input Pad -15 dB
    XLR Configuration Pin-1 Ground; Pin-2 Hot (+); Pin-3 Cold (-)
    Power None, Passive
    Material of Construction Steel Frame with an Aluminum Shell
    Connectors Inputs: 1 x 1/4" / 6.3 mm Unbalanced
    1 x 1/8" / 3.5 mm TRS
    Thru: 1 x 1/4" / 6.3 mm
    Output: 1 x XLR Balanced
    Dimensions (L x W x D) 5.0 x 3.3 x 1.8" / 12.7 x 8.4 x 4.6 cm
    Weight 1.55 lb / 0.70 kg

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