Yeah i know that Mr RB, but i was woundering if i can use a computer psu for 12v and then an aux for signal
Yes given that 160 LED's running at 20 Ma each would only need around 3.2 amps.
The problem as mentioned before is the total parts required. Somewhere around 800 - 900 individual components.
Using 6 channel comparators IC's you would need 27 of them with each channel plus LED taking some 5 additional components.