The Radial Engineering IceCube is a balanced line-level isolator designed to quickly eliminate hum and buzz from an audio system by simply inserting it into the signal path.

Eliminate ground loops quickly

The IceCube is an ideal problem solver for today’s AV technicians and audio engineers, providing an easy way to insert an isolation transformer into the signal path to remove hum and buzz from ground loops, with a ground lift switch for additional noise reduction. Simply connect it between any two line-level devices, such as a mixer and a powered speaker, or a crossover and a power amp. The IceCube will eliminate ground loop noise without limiting the audio bandwidth or introducing phase shift, and it can handle hot signal levels without distortion.

Isolating the DJ mixer from a console

Plug a couple of IceCubes in between the DJ mixer and the main PA to rid the system from hum or buzz caused by ground loops. Standard XLR connections make it easy.

Isolating a crossover from a power amp

Eliminating noise problems can take hours of troubleshooting. The IceCube takes the hassle out of the equation with a plug and play solution that works every time.

Isolating a console from a remote tower

When distant power systems power equipment it often leads to noise, due to voltage fluctuations and ground contamination. The IceCube isolates the system to reduce noise.

Product Specifications:

Audio circuit type: Passive, transformer based

Transformer: Custom made Eclipse

Number of channels: 1

Frequency response: 20Hz ~ 20KHz ( 1dB)

Gain: 0dB / -5.7dB 10K / 600 Load

Clip Level: 25dBu

Total harmonic distortion: <0.0006% 1KHz @ -10dBu

Intermodulation Distortion: 0.002% @ -10dBu

Input Impedance: 8.66k with 10k load

Output Impedance: 600 nominal

Equivalent Input Noise: 110dBu

Maximum Input: 15dBu

Input Connectors: XLR Female

Output Connectors: XLR Male

Construction: 16-gauge steel

Power: Passive, no power required

Conditions: For use in dry locations only between 5C and 40C

Dimensions (L x W x D):4.2″ x 1.32″ x 1.6″ (107mm x 34mm x 41mm)

Weight:0.40lbs (0.18kg)

Shipping Dimensions (L x W x D):8″ x 5″ x 3″ (203mm x 127mm x 76mm)

Shipping Weight:0.55lbs (0.25kg)