PAM-120A / 340A / 480A is a high output P.A amplifier that power output terminal is designed with transless method, 100v/70v......... so it makes high quality sound and features optional tuner, CD, wireless mic, etc available together. It is possible to be announced in selected zones or all zones using speaker selection switch and connecting with remote amplifier makes it possible to broadcast via remote control. Also, it's convenient to use in a diverse environment by offering a variety of functions such as priority broadcasting, CHIME, EM, etc.