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Radial EngineeringTwin Iso Passive Line-Level Isolator


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Radial Twin Iso

Equipped with the world's finest Jensen Audio Transformers, the Radial Twin-Iso is a no-excuse problem solver that provides exceptional audio performance while eliminating ground loops. It features 2 +4dB line-level floating channels with XLR input and output connectors for easy interfacing. Nickel-laminated Jensen JT-11P1 isolation transformers and insulated XLRs provide 100% isolation. As a unity-gain device it boasts 10Hz–40kHz response and balanced, 10kohm input impedance. Jensens do not introduce problems such as phase shift or group delay, which can cause bass to sound muddy and indistinct. This is of utmost importance when interfacing advanced line array systems where maintaining phase relationships is paramount to achieving the controlled dispersion pattern. Jensen Transformers are legendary for their warm Bessel curve and for their ability to handle transients without overload or ringing.

Twin Iso Features

  • Uses world's finest Jensen Audio Transformers
  • 2x +4dB line-level floating channels
  • Insulated XLR I/O
  • Nickel-laminated Jensen JT-11P1 isolation transformers
  • 10Hz-40kHz response
  • Audio circuit type: Passive line-level isolation, transformer based
  • Number of channels: Stereo (dual mono)
  • Frequency response: 10Hz ~ 50KHz (± 1dB)
  • Dynamic range: 135dB
  • Maximum input: +21dBu @ 1kHz, 1% THD+N
  • Total harmonic distortion: 0.001% @ 1kHz, +4dBu output
  • Phase deviation: 0.5° @ 100Hz; 3° @ 20Hz
  • Input impedance: 600 Ohms, balanced
  • Output impedance: 600 Ohms, balanced
  • Transformer: Radial custom transformer
  • High pass filter: -3dB @ 100Hz (12dB.Oct.) 
  • Ground lift: Disconnects XLR pin-1 at isolated output
  • XLR configuration: AES standard (pin-2 hot)
  • Connectors: ¼", RCA, 3.5mm inputs; XLR-F outputs
  • Construction: 14 gauge steel chassis & outer shell
  • Finish: Baked enamel
  • Size:  (W x H x D) 84 x 127 x 48mm (3.3" x 5.0" x 2")
  • Weight: 0.70 kg (1.55 lbs)
  • Shipping Size: W x H x D: 102 x 76 x 165mm (4" x 3" x 6.5")
  • Shipping Weight: .87 kg (1.92 lbs)
  • Power: Passive, no power required
  • Warranty: Radial 3-year, transferable
Radial Engineering Twin Iso Passive Line-Level Isolator Reviews