GLX Balanced line level isolator

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The Iso-Max GLX is a balanced line level isolator designed to quickly eliminate hum and buzz problems in an audio system by simply inserting it into the signal path.

  • 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

The GLX™ is a balanced line level isolator designed to quickly eliminate hum and buzz problems in an audio system by simply inserting it into the signal path.

Measuring just over 4” x 1 ½” (10 x 4cm), the compact design begins with two super-duty glass-filled nylon XLRs at each end with heavy duty nickel-silver contacts that will not tarnish over time. Unlike other isolators that are made of plastic, the GLX is made from solid 16 gauge steel and finished in a tough powder coat. The steel outer shell is not only more durable, it provides excellent shielding against electromagnetic fields radiated by power cables, dimmers, motors and power supplies – delivering consistently quieter results when deployed. This is augmented with a ‘set & forget’ ground lift switch to eliminate hum and buzz caused by ground loops.

Inside the GLX, a high performance transformer isolates the input from the output and blocks ground loop current. While small transformers rarely perform well below 100Hz, the GLX is exceptionally linear from 20Hz to 18kHz. It is also able to withstand up to +10dB at 20Hz with less than 0.01% distortion. It is a quick and easy problem solver that will eliminate noise without limiting the bandwidth or introducing phase shift, harsh sound or unpleasant artifacts.

These features combine to make the GLX an ideal problem solver for the AV technician and audio engineer working in the fast-paced world of live touring, AV rentals and system integration.

Applications

Isolating the DJ mixer from a console

Plug a couple of GLXs 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 GLX 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 GLX isolates the system to reduce noise.

Specifications

Specifications    
Audio circuit type: Passive, transformer based
Frequency response: 20Hz ~ 20KHz (± 1dB)
Dynamic range: >135dB
Maximum input: 15dBu
Gain: 0dB / -5.7dB 10K / 600 Ω 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 Ω nominal
   
Features  
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

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