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EWI ISOBOX-2 Two-channel Line Level Isolation Box and Line Balancer



The EWI ISOBOX-2 is a two-channel line level isolation box and line balancer. Use it to help eliminate hum and buzz caused by long cable runs or to convert unbalanced lines to balanced in high noise environments.


  • XLR and 1/4" inputs accept balanced or unbalanced connections.
  • Balanced XLR output has each ground lift button switch in the both channel.
  • The polarity reverse button in channel 2 is for correcting the opposite polarity signals or mis-wired cables.
  • EWI ISO-T transformer ensure flat frequency response and low distortion.
  • EWI ISOBOX-2 provides two independent channels of line level isolation and/or conversion of signals from unbalanced to balanced.

Warranty: 3 Years

Frequency Response: 20Hz-20kHz ±0.5dB at +10dBm input
Maximum Input Level: +28dBm
Input Impedance: 600 Ohms
Output Impedance: 600 Ohms

To download the ISOBOX-2 manual please click here.

As of 21/4/20 orders $100 and over ship FREE to most areas. Orders $49 and under Postage is $8 and Express Shipping $15. Order $50 to $99 are $15 for express shipping*. This covers one delivery attempt so please provide an address where someone is available to sign for courier delivery between 9am and 5pm weekdays. You can instruct us to ask the courier to leave your parcel unattended in a safe place, although please be aware that if anything happens to the parcel, neither us nor the courier company can be held responsible. Work addresses are a great delivery option. If using a work address please include the business' name.

* for some larger items does not apply to Australian remote island locations, some mainland remote locations (outside Darwin NT and Perth WA metro areas) or outside Australia. If unsure if you are entitled to capped shipping it is best to contact us prior to placing order.

Type: Cables