Sound test interface I Audio Test & Measurement

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AIO-S Module

Enquiry Item

The Line-level Test Module (AIO-L) is designed for making basic acoustic or electrical measurements of a device under test (DUT). AIO-L is a configuration option for the AIO Test System and requires the AIO chassis to operate.


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Product Features

Hardware Features

  • Two mic/line inputs
  • CCP/IEPE/ICP microphone power
  • TEDS reader for microphone data
  • Two 10 W class-D amplifier outputs
  • Internal 0.1 Ω impedance sense resistor
  • Additional inputs for voltage and current monitoring



The Echo AIO ™ is a modular audio test platform ideally suited for high-volume production-line testing and QA/QC verification. The AIO combines the functionality of multiple standalone devices into a single, integrated unit, making test stations both more reliable and less expensive.



Two low-noise inputs accommodate a very wide range of input voltages, from dynamic microphones to line-level inputs. Features include adjustable gain, constant current power, and TEDS readers.

Screenshot 2023-08-10 144637-s



Two high-quality 10 Watt class-D floating amplifier outputs, one with impedance measurement.

Screenshot 2023-08-10 144803-s2


Two additional inputs are used to measure load impedance via the remote voltage sense terminals and an internal 0.1 Ω sense resistor. These inputs appear as additional audio input channels.

Product Applications

Key Applications

  • Speaker measurements with impedance
  • Drivers


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