AIO-A

The Acoustic Test Module (AIO-A) is designed for making basic acoustic measurements of a device under test (DUT)—typically a speaker or driver. Ideal for use with measurement microphones, ear simulators, artificial heads, speakers, actuators, and mouth simulators. AIO-A is a configuration option for the AIO Test System and requires the AIO chassis to operate.

Hardware Features

Four mic/line inputs
CCP/IEPE/ICP microphone power
TEDS reader for microphone data
Two 10 W class-D amplifier outputs

Key Applications

Speakers
Headphones & earbuds
Mobile devices
Microphones

h

Download the AIO-A Module Data Sheet (PDF)

Performance

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.

MIC / LINE INPUTS

Four 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.

MIC / LINE INPUTS

Four 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.

AMPLIFIER OUTPUTS

Two high-quality 10 Watt class-D floating amplifier outputs with output protection.

AMPLIFIER OUTPUTS

Two high-quality 10 Watt class-D floating amplifier outputs with output protection.

specifications

specs

Sample rates 44.1 kHz – 192 kHz

USBUSB 2.0 audio class compliant

Supported operating systems Windows 10 or later, macOS

Audio APIs ASIO, WASAPI, Core Audio

AC power 90 – 264 VAC, 50/60 Hz, 60 W

Input bandwidth:94 kHz (-3dB @ 192k SR)

Input impedance: 1 MΩ

Input gain selectable: 1x, 10x, and 100x

Voltage, full scale: 8.75 Vpk (1x gain, +15.8dBV)

Voltage, limit: 15 Vpk (do not exceed)

Dynamic range (20 kHz BW): > 112 dB

THD+N : < -95 dB (1x gain, 150 Hz – 20 kHz)

Frequency response: ±0.01 dB 20 Hz – 20 kHz (48k SR)

±0.01 dB 10 Hz – 44 kHz (96k SR)

±0.1 dB 10 Hz – 76 kHz (192k SR)

Noise, residual: 17uV

Phase Error:<0.05 ° @ 20 kHz

Constant current supply: CCP/IEPE/ICP, 4 mA

Crosstalk: <-122 dB (20 Hz – 20 kHz)

Coupling:AC

TEDS: IEEE 1451.4 Class 1

Output Impedance:190 mΩ

Output Coupling: AC

Load, minimum:4 Ω

Voltage, full scale: 9.475 Vrms (8 Ω load)

DC Offset, residual: < ±6 mV

Power Output:10W @ < 0.2% THD+N (8 Ω load, 20 Hz – 20 kHz)

6W @ < 0.3% THD+N (4 Ω load, 20 Hz – 20 kHz)

Frequency response:±0.2 dB 10 Hz – 20 kHz ( 8 Ω load)

Output Bandwidth:44 kHz (-3 dB @ 192k SR)

Dynamic Range:100 dB (20 kHz BW)

Noise, residual: 100 μV

IMD:< -53 dB (0.5 mW, SMPTE 4:1)

Crosstalk: <-70dB (20 Hz – 20 kHz), -95 dB @ 1 kHZ

Phase error: < ±1.2° @ 20 kHz

Single unit 17.5” (44.4 cm) x 8.75” (22.2 cm) x 1.75” (4.4 cm), 7.2 lbs (3.3 kg)

Single unit boxed with cables 21” (53 cm) x 10” (25.4 cm) x 5” (12.7 cm), 8.75 lbs (4 kg)

Carton (4 units) 22” (55.8 cm) x 22” (55.8 cm) x 12.6” (32 cm), 42.5 lbs (19.3 kg)

configurations

	Inner Module	Outer Module	Mic/Line Inputs	Line Outputs	Headphone Outputs	Amp Outputs	Impedance	Digital	5VDC Fixed	Battery Simulator	GPIO	PTH
AIO-A1	AIO-A		4			2
AIO-A2	AIO-A	AIO-A	8			4
AIO-AL	AIO-A	AIO-L	8	2		2
AIO-AH	AIO-A	AIO-H	6		2	2	1
AIO-AS	AIO-A	AIO-S	6			4	1
AIO-AC	AIO-A	AIO-C	4			2			Yes	Yes	8/8	Yes
AIO-AT	AIO-A	AIO-T	4			2		TDM 10/10