The Radial Ice Cube Line Level Isolator is a compact, problem-solving tool designed to eliminate hum and buzz caused by ground loops in line-level audio systems.
Built with Radial’s uncompromising approach to audio quality and durability, the Ice Cube delivers clean, transparent isolation in a small, easy-to-deploy format that’s perfect for studios, live sound rigs, and installed systems. The Radial Ice Cube is a passive line-level isolator that uses a high-quality transformer to provide full electrical isolation between connected devices. By breaking ground loops without affecting frequency response or phase integrity, it solves common noise issues when interfacing mixers, audio interfaces, powered speakers, outboard gear, and playback devices. Featuring XLR input and output connections along with a recessed ground lift switch, the Ice Cube is simple to integrate into virtually any professional audio setup. Its compact steel enclosure makes it ideal for use behind racks, under consoles, or in mobile rigs where space is limited but clean signal flow is essential. With no power required, the Ice Cube is a reliable, plug-and-play solution for keeping line-level audio pristine.
Radial Ice Cube Line Level Isolator Features
- Eliminates hum & buzz caused by ground loops
- Exceptionally linear response from 20Hz to 18kHz
- Able to handle pro output levels without choking
- Plug & play easy to use with XLR in & out
Radial Ice Cube Line Level Isolator Applications
- Isolating the DJ mixer from a console - Plug a couple of Radial Ice Cubes 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 Radial 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 Radial IceCube isolates the system to reduce noise.
Radial Ice Cube Line Level Isolator Specifications
- Technical Specs:
- Audio Circuit Type: Passive, transformer based
- Frequency Response: 20Hz ~ 20KHz (± 1dB)
- Dynamic Range: >135dB
- Maximum Input: 15dBu
- Gain: 0dB / -5.7dB 10K / 600 ? Load
- Clip Level: 25dBu
- Equivalent Input Noise: 110dBu
- Intermodulation Distortion: 0.002% @ -10dBu
- Total Harmonic Distortion: <0.0006% 1KHz @ -10dBu
- Input Impedance: 8.66k with 10k load
- Output Impedance: 600 ? nominal
- Features:
- Transformer: Custom made Eclipse
- Ground Lift: Disconnects pin-1 at XLR output
- XLR Configuration: AES standard: Pin-1(Gnd), Pin-2(+), Pin-3(-)
- Connectors: XLR-FEMALE input; XLR-MALE output
- General:
- Construction: 16 gauge steel chassis & outer shell
- Finish: Durable powder coat
- Size: (L x W x D) 4.2" x 1.32" x 1.6" (107mm x 34mm x 41mm)
- Weight: 0.40lbs (0.18kg)
- Shipping Size: (L x W x D) 8" x 5" x 3" (203mm x 127mm x 76mm)
- Shipping Weight: 0.55lbs (0.25kg)
- Power: Passive, no power required
- Conditions: For use in dry locations only between 5°C and 40°C
Radial Ice Cube Line Level Isolator Includes
- Radial Ice Cube Line Level Isolator
- User Guide
- Manufacturer Warranty

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