2023
| 11 | New Product : Monitoring speaker development in progress (Motive - MV4, wired/wireless) |
| 09 | New Product : NTEC short/open monitoring relay group (NRT40, NRT25, NRT16) |
| 08 | New Product : NTEC short/open monitoring and manual control relay group (NRG16M) |
| 07 | New Product : Development of PLC modules to improve communication speed and stability |
| 06 | New Product : NTEC system renewal (NRT40, NEI42, NDM16) |
| 02 | ISO14001:2004 |
| 02 | ISO9001:2008 |
2022
| 12 | New Product : NTEC (Novel Sound Technology) web control based PA system extension development |
| 08 | New Product : NTEC Audio Matrix (NAM12) |
| 07 | New Product : NTEC system renewal (NCS01, NRG16, NRT16) |
| 03 | Designated as an excellent product by the Public Procurement Service: Smart broadcasting system with high-efficiency sound technology (designation number: 2022025) |
| 01 | Designated as an overseas procurement market entry company (G-PASS) |
2021
| 12 | New Product : High-efficiency amplifier (PRODIGI500Q : 1H, 2000W, eff 93%) |
| 08 | New Product : High-efficiency amplifier (PRODIGI300Q : 1H, 1200W, eff 93%) |
| 06 | Start Development : Upgrade version of NTEC(PA system based on web control) |
| 03 | Green technology certification : High-efficiency power amplifier technology (1H, 3000W, eff 93%) |
| 03 | Green technology product : Power amplifier for public address (1H, 3000W, eff 93%) |
2020
| 08 | Patent registration : Broadcasting output system and method |
| 08 | Good Software certification (1st class) : Smart remote control broadcasting system V1.0 |
| 05 | Patent registration : High-efficiency amplifier with integrated power supply and amplification part |
| 04 | New Product : High-efficiency amplifier (PRODIGI750Q : 1H, 3000W, eff 93%) |
| 03 | Copyright registration : NUFI(NTEC User Friendly Interface) |
| 02 | New Product : NTEC(Novel sound Technology), PA system based on web control |
| 01 | Patent registration : Short circuit proctor, Line short Protector |
2019
| 09 | Paten |
