$349.00 per ea

Quantity Price
ea $349.00
2+ $319.00
4+ $296.00
per ea
All prices shown are (inc. GST)


The Redback Impedance Meter is an absolute necessity for all PA system installers. An impedance meter is critical for accurately measuring low impedance loudspeaker systems, incorporating multiple speakers and crossovers, and for measuring commercial 70V or 100V line speaker systems, which may include many speakers with line transformers and several hundred meters of cable. Trying to measure this type of load is virtually impossible with a standard multimeter. The Redback® Q 2004 measures and calculates loads for both 100V and 70V line systems up to 10,000 Watts in power. Most impedance meters on the market display the impedance in ohms, leaving the installer to calculate the system wattage. This rechargeable impedance meter for ‘dummies’ designed and manufactured by Redback calculates and displays speaker loads in watts and Ohms. An inbuilt system check mode produces a 1KHz test tone into the connected speaker line, enabling the operator to check all speakers on the line are working.

The Redback Q2004 is the first impedance meter model to feature a rechargeable internal lithium battery, make it easy to keep the unit charged up and ready to use when you need it.


  • Suitable for 70V and 100V line speaker systems up to 10kW
  • Also measures 4-16Ω low impedance speaker loads
  • OLED display
  • 1Ω to 20KΩ test range
  • Auto ranging
  • Display accuracy +/-10%
  • Push button operation
  • System check mode (20, 60 or unlimited minutes)
  • Rechargeable internal lithium battery
  • Low battery indication
  • Buzzer and haptic feedback options
  • USB charging lead supplied
  • Test leads supplied
  • Soft carry case included

100% developed, designed & assembled in Australia.
Since 1976 Redback PA products have been manufactured in Perth, Western Australia by Altronics. With over 45 years experience in the commercial audio industry, we offer consultants, installers and end users reliable products of high build quality with local product support. Read more about our Australian Made products

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Warranty & Returns


We offer 2 years warranty on this product from its date of purchase. This is available from Altronics stores, online purchases or Altronics resellers. In accordance with our full warranty terms we will repair, replace or refund if goods you have purchased from us are defective.


Not withstanding our warranty policy, if you are dissatisfied with our goods or service you may return the goods within 14 days of our despatch date. Simply contact us for a return authorisation number and we will refund your purchase in full, less transport costs on receipt of goods. All returned goods must be in as sold condition including all packaging, instructions, invoices etc.

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