supply of pa amplifier 250w (ssa 250dp) to the following, make : ahuja or studio master. input : 6 mic, 2aux. output : preamp out & line out. power input : 230v ac & 24v dc. digital player : usb, sd, mmc reader.speaker out : 4 ohm, 8 ohm, 70v, 100v. warranty : minimum one year from the date of receipt.