Jensen Transformers SP-2SX - 2-Channel Speaker to Line Level Converter (Speakon In / XLR Out)

Jensen Transformers SP-2SX - 2-Channel Speaker to Line Level Converter (Speakon In / XLR Out)

Jensen Transformers SP-2SX - 2-Channel Speaker to Line Level Converter (Speakon In / XLR Out)

B&H # JESP2SX MFR # SP-2SX
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Expected availability: 7-14 business days

Product Highlights

  • Amplifier Output to Balanced Line Level
  • Passive, 2-Channel
  • 2 x Speakon Inputs, 2 x XLR Outputs
  • Two Jensen High-Performance Transformers
  • Eliminates Hum & Buzz from Ground Loops
  • Frequency Response of 5 Hz to 20 kHz
  • Low Distortion Down to 20 Hz
  • 8-Position DIP Switch for Various Amps
  • Passive Design Requires No Power
  • Rugged Steel Enclosure
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This item is noncancelable and nonreturnable

$0.00 Tax Collected Outside NY and NJ

You Pay: $229.99

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  • 1Description

The Jensen Transformers Iso-Max SP-2SX is a 2-channel, "speaker-to-line-level" converter designed to convert a high-power signal from the output of an audio amplifier to a +4 dB, balanced line-level signal. It presents engineers with a range of solutions to expand existing audio systems without having to run additional line-level signals throughout a facility.

The SP-2SX features two Jensen high-performance transformers that provide galvanic isolation between the input and output, to reduce hum and buzz caused by ground loops, and eliminate issues with "bridged" and "Class-D" power amp outputs. The unit delivers a flat frequency-response from 5 Hz to 20 kHz, and can withstand signals in excess of +19 dBu down to 20 Hz, without discernible distortion. The converter offers a series of input pad DIP switches that let you select the range to suit various power amps, including 25V and 70V line driver types.

Easy to set up, with no power required, the SP-2SX comes with a removable screw-down barrier strip for quick installation in NEMA enclosures and 19" racks. The device is equipped with Speakon input connectors, gold-plated XLR output connectors, and a rugged, flanged-steel enclosure that is well-suited to stand up to the rigors of the road.

Key Features
  • Converts high-power signals from an audio amplifier output to +4 dB (nominal) balanced line level signals
  • Use to expand existing systems without having to run additional line-level signals throughout facility
  • Passive, 2-channel
  • Two Jensen high-performance transformers provide galvanic isolation between the input and output
  • Eliminates hum and buzz caused by ground loops
  • Ruler-flat frequency-response from 5 Hz to 20 kHz
  • Handles signals in excess of +19 dBu at 20 Hz, without discernible distortion
  • Input pad DIP switches let you select range to suit various power amps at 25W, 75W, 250W, 750W (maximum into 8 Ohms)
  • Removable screw-down barrier strip for easy installation in NEMA enclosures and 19" racks
  • Speakon input connectors, gold-plated 3-pin XLR-male input connectors
  • Rugged, flanged-steel enclosure 
  • Plug-and-play, easy to use, no power required
UPC: 676101041725
In the Box
Jensen Transformers SP-2SX - 2-Channel Speaker to Line Level Converter (Speakon In / XLR Out)
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description
    Type Audio amplifier output to +4 dB (nominal) balanced line level converter
    Passive line isolator
    Channels 2
    Connectors 2 x Speakon (inputs)
    2 x 3-pin XLR-male, balanced, gold-plated (outputs)
    1 x removable screw-down barrier strip
    Frequency Response 5 Hz to 20 kHz
    Input Impedance Zi, 1 kHz, 1 kHz, 10 V, varies with power selection
    Minimum: 1.1 kOhms
    Maximum: 2.3 kOhms
    Voltage Gain 1 kHz, input voltage = rated maximum
    Minimum: +17.5 dBu
    Typical: +18 dBu
    Maximum: +18.5 dBu
    Magnitude Response 20 Hz, 10 V, ref 1 kHz
    Minimum: -0.15 dB
    Typical: -0.03 dB
    Maximum: ±0.0 dB

    20 kHz, 10 V, ref 1 kHz
    Minimum: -0.35 dB
    Typical: -0.20 dB
    Maximum: ±0.0 dB
    Deviation from Linear Phase 20 Hz to 20 kHz, 10 V
    Typical: +1.4 / -0.0°
    Maximum: ±2.0°
    Distortion (THD) 1 kHz, 15 dB below rated input voltage
    Typical: < 0.001%

    20 Hz, 15 dB below rated input voltage
    Typical: 0.04%
    Maximum: 0.10%

    20 Hz, maximum rated input voltage
    Typical: 0.8%
    Maximum: 1.5%
    Common Mode Rejection Ratio 60 Hz
    Typical: 115 dB

    3 kHz
    Minimum: 80 dB
    Typical: 90 dB
    Output Impedance Zo, 1 kHz
    Typical: 5.3 kOhms
    Amplifier Power Rating 8 Ohms / rated maximum input voltage

    S1 off, S2 off, S3 off
    Maximum: 25 W, 14 V

    S1 on, S2 off, S3 off
    Maximum: 75 W, 25 V

    S1 on, S2 on, S3 off
    Maximum: 250 W, 44 V

    S1 on, S2 on, S3 on
    Maximum: 750 W, 77 V

    Any switch settings, without damage
    Maximum: 77 V
    Temperature Range 32 to 158°F / 0 to 70°C

    (Operation or storage)
    Breakdown Voltage Minimum: 250 V RMS


    (Speaker input to line output ground or chassis, 60 Hz, 1 minute test duration)

    Dimension (L x W x H) 6.94 x 3.50 x 1.71" / 176.30 x 88.90 x 43.40 mm
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