The GT-20-PSA is a versatile audio matrix switcher with 20 analog ports that can be configured as inputs or outputs. It features multi-channel DSP and Acoustic Echo Cancellation (AEC) for superior sound quality. The unit includes a mini-USB connection, a built-in poweramplifier (2x60W @ 8Ω and 1x120W @ 70V/100V), and a 4x4 Dante interface. It also supports HDMI embedding/de-embedding, USB, and S/PDIF. Its intuitive graphic interface makes system configuration easy and straightforward.
| Category | GT-20-PSA Specification |
| Analog Audio Outputs |
20 Balanced Mono Audio on 3-pin terminal blocks |
| USB Output | 1 female mini USB connector |
| HDMI Output | 1 female HDMI connector |
| S/PDIF Output | 1 RCA connector |
| 120W Amplifier | On a 4-pin large terminal block |
| RS-232 Port | 3-pin terminal block connector |
| Ethernet Port | RJ-45 female connector |
| HDMI Input | 1 female HDMI connector |
| S/PDIF Input | 1 RCA connector |
| USB Input | 1 female mini USB connector |
| Line/Mic Level Input Impedance |
Unbalanced: 7.6kΩ, Balanced: 3.8kΩ, Microphone: 3.8kΩ |
| Nominal Level | Unbalanced: 0dBV (0.77Vrms), Balanced: +6.8dBu (1.54Vrms) |
| Maximum Level (Balanced) |
Test |
| Sensitivity | Unbalanced: Full power @ 0dBV (0.77Vrms), Balanced: Full power @ +6dBu (1.54Vrms) |
| Phantom Power | 48 VDC on/off per input |
| Line Level Output Impedance |
Unbalanced: 50Ω, Balanced: 50Ω |
| Frequency Response |
20Hz − 20kHz @ ±1dB |
| S/N Ratio | >100 dB, 20Hz − 20kHz, at unity gain (unweighted) |
| Audio THD + Noise | <0.01%, 20 Hz − 20 kHz, at unity gain |
| Line Level Input Crosstalk |
<−85 dB, 20Hz to 20kHz |
| User Interface | Front Panel LEDs: 1 status, 20 audio ports, 4 Dante I/O, HDMI embed, HDMI de-embed, 2 S/PDIF I/O, USB I/O, and 2 amplifier channels |
| Control (RS-232) | Baud Rate: 115200, Data Bits: 8, Stop Bits: 1 |
| Operating Temperature |
0° to +40°C (32° to 104°F) |
| Storage |
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