Radial Twin-Iso

Two channel balanced line level isolator

Our price:$465.00 GST
Order Code: TWIN-ISO

IN STOCK 1 (more can be backordered)

Destroy hum, buzz and ground loops before they compromise either your show, or your reputation (or both). Radial’s Twin-Iso is a high performance two channel balanced line-level isolator for professional touring, sound installation, broadcast and studio that provides isolation between various pieces of audio equipment such as consoles, amp racks, remote towers and recorders as a means of eliminating hum and buzz caused by ground loops.



  • Two channel balanced line level isolator
  • Jensen Transformers for optimal signal transfer
  • Up +24dB signal handling without distortion
  • Eliminates hum and buzz caused by ground loops

Central to the Twin-Iso are two world-renowned Jensen audio transformers. These high performance devices are exceptionally linear at all frequencies and are capable of handling as much as +24dB without distortion to ensure absolute signal integrity is retained no matter what the program material.

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
Weight:  0.70 kg
Power:  Passive, no power required 
Warranty:  3-year