Echo ATS Acoustic Test System

The Echo ATS™ Test System is a compact audio test platform ideally suited for high-volume continuous mass production. The ATS combines the functionality of multiple standalone devices into a single, integrated unit, making test stations both more reliable and less expensive.

The ATS has flexible, software configurable analog and digital I/O options allowing it to be used to test many types of devices or easily switch which devices are being tested.

The ATS is USB 2.0 audio class compliant, so it works just like a sound card. Standard audio drivers provide seamless support with industry-leading audio test software.

The design of the ATS draws on our decades of experience creating high-quality consumer and professional audio interfaces as well as its predecessor, the AIO modular test interface.

Applications

• Speakers & headphones
• Mobile devices
• Car audio
• Microphones
• Analog and digital audio
• And more…

Features

• High accuracy
• Cost effective
• Silent—no fan!
• Standard USB audio interface
• Wide test & measurement software compatibility
• ASIO, WASAPI, Core, & ALSA Audio protocols.

8 MIC/LINE Inputs

• 5 Gain Settings (0dB – 40dB)
• 4mA Constant current supply (CCP/IEPE/ICP)
• TEDS reader
• AC/DC Coupling

4 Class-D Amplifier Outputs

• 10W Peak, 5W Continuous
• Impedance Measurement (Output 1)

2 Line Level/Headphone Outputs

• Balanced Line Level
  • Impedance Measurement (Output 1)
• Unbalanced Headphone
  • Same signal on (+) and (-)
  • Single output for both Left and Right Channels

Output Configuration

Outputs 1-2 are individually switchable between Class-D, Line, or Headphone configuration. Outputs 3-4 are Class-D only.

Digital I/O (SPDIF or SYNC)

• Switchable between SPDIF or Word Clock for external synchronization

GPIO

• 4 TTL level inputs
• 4 open drain outputs capable of sinking 250mA

Compact Design

• Dimensions: 11” (28 cm) × 8.4” (21.3 cm) × 2.1” (5.4 cm)
• Weight: 4.35lbs (1.97 kg)
• Internal AC/DC Supply (40W, 100-240VAC)
• Bottom mounting holes for stability

Microphone / Line Inputs

• Input impedance: 100 KΩ
• Input coupling: AC/DC
• Input gain: +0dB, +10dB, +20dB, +30dB, +40dB
• Voltage, full scale (1x gain): 8.75 Vpk (+15.8 dBV)
• Frequency response:
  • ±0.01 dB (20 Hz – 20 kHz) (48k SR)
  • ±0.01 dB (20 Hz – 40 kHz) (96k SR)
  • ±0.1 dB (20 Hz – 80 kHz) (192k SR)
• Input bandwidth (-3 dB @ 192k SR): 93 kHz
• Dynamic range (20 kHz BW): 114 dB
• THD+N (1x gain, 48kSR): < -110 dBA
• Constant current supply: CCP/IEPE/ICP, 4 mA, 24V
• TEDS reader: IEEE 1451.4 Class 1

Amplifier / Speaker Outputs

• Output coupling: AC
• Load, minimum: 4 Ω
• Voltage, full scale: 9.475 Vrms (8 Ω load)
• Power output (20 Hz – 20 kHz, all channels driven):
  • 10 W @ <0.2% THD+N (8 Ω load)
  • 6 W @ <0.3% THD+N (4 Ω load)
• Frequency response: ±0.2 dB (10 Hz – 20 kHz) (8 Ω load)
• Output bandwidth (-3 dB @ 192k SR): 44 kHz
• Dynamic range (20 kHz BW): 100 dB
• Impedance measurement accuracy: ≤ 0.5% (20 Hz – 20 kHz)

Line Outputs

• Output coupling: DC
• Voltage, maximum: 8 Vrms (+18 dBV) (balanced)
  * Power should be limited to 63mW
• Frequency response:
  • ±0.01 dB (10 Hz – 21 kHz) (48k SR)
  • ±0.01 dB (10 Hz – 43 kHz) (96k SR)
  • ±1 dB (10 Hz – 75 kHz) (192k SR)
• Output bandwidth (-3 dB @ 192k SR): 90 kHz
• Dynamic range (20 kHz BW): 120 dB
• THD+N (20 kHz BW): < -102 dB (20 Hz – 20 kHz)
• Impedance measurement accuracy: ≤ 1% (20 Hz – 20 kHz)

Headphone Outputs

• Output coupling: DC
• Load, minimum: 16 Ω
• Voltage, maximum: 3 Vrms (+9.5 dBV) (unbalanced)
  * Power should be limited to 63mW
• Frequency response:
  • ±0.01 dB (10 Hz – 21 kHz) (48k SR)
  • ±0.01 dB (10 Hz – 43 kHz) (96k SR)
  • ±1 dB (10 Hz – 75 kHz) (192k SR)
• Output bandwidth (-3 dB @ 192k SR): 89 kHz
• Dynamic range (20 kHz BW): 112 dB

Echo ATS User Manual