Furman IT-REF 20I 20 Amp Symmetrical Power Filter

(1 customer review)
UPC: 654061027867UPC: 654061027867

Available on backorder

Furman Canada

The Furman IT-REF 20I 20 Amp Symmetrical Power Filter features total isolation between the filtered-high current outlets, and the isolated symmetrical power AC outlet banks. This positively breaks noise inducing ground loops, hum bars.

Features of the Furman IT-REF 20I 20 Amp Symmetrical Power Filter:

  • Symmetrical balanced power with dual screen technology cancels hum-inducing noise from audio and video
  • Five discrete power banks eliminate inter-component interference
  • Power Factor technology provides surplus current for power-starved amplifiers
  • Virtually maintenance-free AC surge suppression
  • Detachable surge suppression module for telco and cable / satellite connectors



  • Family Reference Series
  • Line Voltage 120 (Volts)
  • Number of Outlets 12
  • Number of Isolated Banks 5
  • Outlet Descriptions 8 (symmetrical balanced outlets)
    4 (Power Factor Technology outlets • 9 amps RMS reserve reactive load over 80 amps pk. charge)
  • Rack Mountable Yes
  • Rack Ears Included Yes
  • Front Panel Meter(s)No
  • Front Media Light(s)No
  • Control On/Off switch on front panel.
  • Voltage Regulation No
  • Compliance C-ETL
  • USB Charging N/A
  • Low Voltage Trigger N/A
  • Dimensions 5.75″ H x 17″ W x 16.25″ D (Standard 3 RU height without feet)
  • Weight 81 lbs
  • Power Consumption 8.5 Watts for display and control circuits independent of actual load

AC Protection

  • AC Protection Technology Extreme Voltage Shutdown
    Series Multi-Stage Protection
    Non-sacrificial protection with zero ground contamination
  • Under-Voltage Shut off N/A
  • Over-Voltage Shut off 140V ±3V
  • Maximum Current Rating 20 (Amps)
  • Initial Clamping Level 188 VAC peak @ 3,000 Amps


  • Filtration Technology LiFT, Discrete Symmetrical Power with Dual Screen Technology
  • Filtration Rating Transverse (Differential) Mode:
    > 40 dB from 10 kHz – 100 kHz
    > 80 dB from 100 kHz – 1GHz
    (Linear attenuation curve from 0.05 – 100 ohms line impedance)
    Common Mode (video outlets):
    > 75 dB, 10 Hz – 50 kHz
    > 40 dB 50 kHz – 1 MHz
  • Signal Line Protection Tel
    3 Cable/Satellite
Weight 90.7 lbs
Dimensions 24 × 23.4 × 13.1 in



Furman Power products are the most trusted in the world by artists, A/V professionals, the recording industry and technology integration firms for premium power conditioning, protection, regulation, sequencing and distribution. Furman Canada has earned its reputation of trust around the world thanks to the billions of dollars of equipment saved from power problems and because of our innovative, leading technologies that maximize an A/V system’s power and performance. For our customers, operating a system without the safe, clean power delivered by a Furman unit is simply out of the question. For fans, we put our mind, heart and soul into every product we build, because that’s what our customers do with their entertainment and systems.


Nortek Security & Control LLC is a global leader in smart connected devices and systems for residential and commercial customers, serving the security, access, AI, health & wellness, control and power/AV markets. Nortek Control and its partners have deployed more than 5 million connected systems and over 25 million security and home control sensors and peripherals. Through its family of brands, the company designs solutions for national telecoms, big-box retailers, OEM partners, service providers, dealers, technology integrators and consumers. Headquartered in Carlsbad, Calif., Nortek Control has over 50 years of innovation and is dedicated to addressing the lifestyle and business needs of millions of customers every day.

GTR Direct is a proud dealer for Furman Canada
Furman Canada

1 review for Furman IT-REF 20I 20 Amp Symmetrical Power Filter

  1. Chris Black

    Great product

Add a review

Your email address will not be published. Required fields are marked *


This is the title