DIN-2LI Two channel line input module

219.99 Request

The Iso•Max DIN-2LI is a two channel line input isolator designed to eliminate noise in professional balanced audio systems by isolating the input of the connected device.

  • Eliminates hum and buzz caused by ground loops
  • Delivers exceptionally low distortion down to 20 Hz
  • Ruler flat frequency response from 5 Hz to 40 kHz
  • Plug and play easy to use, no power required

The design begins with a gray molded assembly made from UL94-VO flame retardant Noryl that snaps into place onto a standard 35 mm DIN rail for easy installation in a NEMA enclosure. Connections to and from the module are made via removable screw-down wire terminals. Plug and play easy to use, this passive interface does not require any power to work. Inside are two Jensen high performance transformers that are able to withstand signal levels to +19 dBu at 20 Hz without discernible distortion. These provide galvanic isolation between the input and output to eliminate hum and buzz caused by ground loops, rejecting noise by as much as 124 dB. To further optimize the performance, a choice of connection point options enable the user to determine the most appropriate grounding scheme to suit the installation.

You simply connect the DIN-2LI between the source and the input destination to eliminate ground loops, electromagnetic interference (EMI) and RFI problems. The DIN-2LI will quietly go to work without introducing distortion, phase shift or artifact of any kind.

Applications

DIN-2LI with a PA system

Eliminating noise in a PA system can sometimes take hours of trouble shooting, particularly when the mixer, amplifiers and speakers are distanced apart. Simply connect the DIN-2LI at the input of your amplifier to instantly eliminate ground loop hum and buzz.

DIN-2LI in the studio

Recording and broadcast studios require a noise-free signal transfer while delivering the most accurate sound possible. The Iso•Max DIN-2LI eliminates ground loops and lowers RF without introducing distortion, phase shift or artifact.

Isolating one console from another

Whether you are isolating two consoles in a festival or experiencing noise when connecting to a drive rack, the DIN-2LI is easily inserted into the signal chain to break the ground loop and eliminate noise as it easily handles huge bass transients without distortion.

Specifications

All levels are input unless noted

PARAMETER CONDITIONS MINIMUM TYPICAL MAXIMUM
Input impedance, Zi 1 kHz, +4 dBu, test circuit 1 13.0 kΩ 14.1 kΩ 15.0 kΩ
Voltage Gain 1 kHz, +4 dBu, test circuit 1 -3.2 dB -3.0 dB -2.8 dB
Magnitude response, ref 1 kHz 20 Hz, +4 dBu, test circuit 1, Rs = 600 Ω -0.15 dB -0.03 dB ±0.0 dB
Magnitude response, ref 1 kHz 20 Hz, +4 dBu, test circuit 1, Rs = 600 Ω -0.35 dB -0.20 dB ±0.0 dB
Deviation from linear phase (DLP) 20 Hz, 20 kHz, +4 dBu, test circuit 1, Rs = 600 Ω   +1.4/-0° ±2.0°
Distortion (THD) 1 kHz, +4 dBu, test circuit 1, Rs = 600 Ω   <0.001%  
Distortion (THD) 20 Hz, +4 dBu, test circuit 1, Rs = 600 Ω   0.04% 0.10%
Maximum 20 Hz input level 1% THD, test circuit 1, Rs = 600 Ω +17 dBu +19 dBu  
Common – mode rejection ratio (CMRR) 600 Ω balanced source 60 Hz, test circuit 2   124 dB  
Common – mode rejection ratio (CMRR) 600 Ω balanced source 3 kHz, test circuit 2 85 dB 95 dB  
Common – mode rejection ratio (CMRR) 600 Ω unbalanced source 60 Hz, test circuit 3   95 dB  
Common – mode rejection ratio (CMRR) 600 Ω unbalanced source 3 kHz, test circuit 3   85 dB  
Output impedance, Zo 1 kHz, test circuit 1, Rs = 600 Ω   3.2 kΩ  
Optimal cable length input      
Optimal cable length output      
Turns ratio   0.999:1 1.000:1 1.001:1
Temperature range operation or storage 0°C   70°C
Breakdown voltage primary or secondary to shield and case, 60 Hz, 1 minute test duration 250 V RMS    

Graphs

Phase Distortion
Frequency Response
THD vs Level at Low Frequencies
THD vs Frequency at Various Levels
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