TEAC NT-505 firmware update 2021/11/24 v1.3：
Added on the V1.30 (November 24, 2021)：
SOUND SELECT added to the setting menu.
User can select the sound setting from 4 sound modes.
SOUND 1: Live (default)
SOUND 2: Rich harmonics
SOUND 3: Fast attack
SOUND 4: Neutral
https://teac.jp/int/product/nt-505/download
