Audio wired PA system

[ariendj]

im looking for a wired PS system which will be used along with

1. 1 wired microphone
2. 2 wired microphone
3. 1 keyboard
4. audio out from laptop or PC

point 1 will be in most situations
point 2,3,4 occasionally

• as pointed out,will require more than 1 audio-in port

• please give suggestions at a budget below 20k.
• audience range will be from 30-50 in most occasions and max at 100 on 1 or 2 occasions.