Both units offer digital and analog audio in and out channels, USB control, and a power indicator. All other typical soundcard controls that are not used for audio test applications have been eliminated. The goal is easy operation and calibration with no room for error. The units are supplied fully calibrated. They are also compact, rugged, and rack mountable.
AudioConnect offers two channels in and two channels out (analog and digital S/PDIF) and a 44.1-kHz/48-kHz sampling rate. It is packed with additional features to simplify your audio test setup, including SCM microphone power with 0-dB/20-dB gain, a headphone amplifier and USB hub, which enables daisy-chaining of USB components and a logical place to keep the SoundCheck dongle.
Its sister analyzer interface, AudioConnect 4x4, is a high-precision audio interface offering four channels in and four channels out (analog and digital AES/EBU 24 bit and up to 192 kHz). This audio interface offers a high SNR and a wide frequency response, making it suitable for the most demanding measurement applications. The sampling rate can be set by the user at any value up to 200 kHz.
Full technical specifications for these two new Listen hardware interfaces for SoundCheck are listed here
|
Analog I/O |
AudioConnect |
AudioConnect 4x4 |
|
Number |
2 inputs, 2 outputs |
4 inputs, 4 outputs |
|
Type |
Balanced or unbalanced |
Balanced or unbalanced |
|
Level |
10 VP In / 1.5 VP Out |
10.5 Vp In/10.8 Vp Out |
|
Input Impedance |
5.4 kΩ |
Balanced: 24 kΩ; Unbalanced: 12 kΩ |
|
Output Impedance |
≤5 Ω |
Balanced: 100 Ω; Unbalanced: 50 Ω |
|
Output Drive |
19.5 dBu full-scale output into 2-kΩ load |
600-Ω impedance; 0.2 μF capacitance |
|
A/D and D/A Type |
16 and 24 bit |
24-bit multi-level, delta-sigma |
|
Analog In Performance |
|
|
|
Frequency Response |
20 Hz to 20 kHz, ±0.25 dB |
20 Hz to 20 kHz, ±0.1 dB |
|
Dynamic Range |
110 dB |
117 dB, A-weighted |
|
Channel Crosstalk |
–110 dB, 1 kHz signal |
–120 dB maximum, 1 kHz signal, –1 dBFS |
|
THD/THD+N |
THD at 1 kHz: 0.001% typical |
–107 dB (0.00045%) at –1 DBFS –106 dB (0.00050%) at –6 DBFS 1 kHz signal, 22 Hz to 22 kHz BW |
|
Analog Out Performance |
|
|
|
Frequency Response |
20 Hz to 20 kHz, ± 0.25 dB |
20 Hz to 20 kHz, ±0.1 dB |
|
Dynamic Range |
114 dB |
117 dB, A-weighted |
|
Channel Crosstalk |
–110 dB, 1 kHz signal |
–120 dB max., 1 kHz signal, –1 dBFS |
|
THD/THD+N |
THD at 1 kHz: 0.001% typical |
THD+N: –107 dB (0.00045%) at –1 DBFS –106 dB (0.00050%) at –6 DBFS 1 kHz signal, 22 Hz to 22 kHz BW |
|
Digital I/O |
|
|
|
Number |
2 inputs, 2 outputs |
4 inputs, 4 outputs |
|
Type |
S/PDIF |
24 bit AES/EBU format |
|
Sample rates |
44.1 kHz / 48 kHz |
All standard rates and variable rates up to 192 kHz |
|
Connections |
|
|
|
Digital I/O ports |
BNC |
25-pin female D-sub connectors. Yamaha pinout |
|
Analog I/O ports |
0.25” TRS |
25-pin female D-sub connectors. Tascam pinout |
|
Additional Functionality |
|
|
|
Microphone inputs |
2, microdot connector, SCM/Electret bias |
N/A |
|
Microphone Gain |
Unity/20 dB |
N/A |
|
Headphone Power |
> 50 mW into 8 Ω |
N/A |
|
Headphone Output Impedance |
< 3 Ω |
N/A |
|
USB Hub |
1 internal and 1 external USB port |
N/A |
For more information, visit www.listeninc.com
