1. Introduction
The Echo AIO-S2 is a 4-channel acoustic interface designed for production-line testing and QA/QC verification. Combining four 10W amplifier outputs and two mic/line analog inputs in a single unit, the AIO-S2 is an integrated, cost-effective, and reliable high-throughput audio test solution. Two of the amplifier outputs includes a 0.1 ohm sense resistor to facilitate impedance measurements. Four additional line inputs are dedicated to voltage monitoring (VMON) and current monitoring (IMON) for impedance measurements.
Each analog input can be individually configured as a line level input or as a measurement microphone input. Microphone inputs include an IEPE microphone conditioning amplifier with integrated constant current power supply (CCP).
The AIO-S2 presents a standard USB audio sound card interface and is compatible with most audio test software including APx Flex.
2. Features
4 IEPE microphone / line inputs with TEDS
2 amplifier outputs
2 amplifier outputs with impedance measurement
USB 2.0 audio with locking connector
Quiet fanless design
3. Specifications
INTERFACE
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Sample rates
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48 kHz, 96 kHz, and 192 kHz
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USB
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USB 2.0 audio class compliant
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Supported operating systems
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Windows 7 or later; macOS |
Audio APIs
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ASIO, WASAPI, CoreAudio |
AC Power
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Universal power supply; 90 - 264 VAC at 50 or 60 Hz |
MICROPHONE/LINE INPUTS
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Input bandwidth
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72 kHz
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Input impedance
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1 MΩ
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Input gain
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1x, 10x, and 100x
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Full-scale input voltage (1x gain)
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8.75 Vpk
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Maximum input voltage
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15 Vpk (do not exceed)
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Dynamic range (1x gain, A-weighted)
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> 110 dB
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THD+N (1x gain, A-weighted)
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< -95 dB (20 Hz – 20 kHz)
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Frequency response
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±0.5 dB (20 Hz – 20 kHz)
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Constant current supply
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4 mA, 21 V excitation voltage
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TEDS
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IEEE 1451.4 Class 1
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AMPLIFIER OUTPUTS
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Output power (THD+N < .1%)
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10 W continuous at 1 kHz
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Maximum output voltage
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13.5 Vpk
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Frequency response
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±0.5 dB (20 Hz – 20 kHz)
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IMPEDANCE MEASUREMENT
THDN (1x gain, A-weighted)
Frequency response
Full-scale input voltage
Full-scale input current
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< -95 dB (20 Hz – 20 kHz)
±0.5 dB (20 Hz – 20 kHz)
17.5 Vpk
8.75 Apk
The SPKR connector is both an amplified output and a voltage/current monitoring input for impedance measurement.
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DIMENSION & WEIGHT
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44.4cm x 22.2cm x 4.4cm; 3.3kg |
4. Download
AIO-S2 Datasheet
5. Contact
Unit 2209, Golden Park Tower, 2 Pham Van Bach Street, Yen Hoa, Cau Giay District, Ha Noi, Vietnam
tel.: +84 (24) 38229808
fax: +84 (24) 38229553
cell: +84 90 336 8648
email: tuonglam@syscovn.com