Amp size

[Killjoy]

So I have 2 18 in competition kicker l7 and want to know what the best amp to use is and will a head unit with 50 watt max output be able to power it 

[Joshdashef]

2 minutes ago, Killjoy said:

So I have 2 18 in competition kicker l7 and want to know what the best amp to use is and will a head unit with 50 watt max output be able to power it 

The RCA coming out of the headunit goes into the amplifier. It will power any amp. However. The headunit/radio it self has an amplifier built into it that outputs a set rms rating which can go directly to a speaker, not a sub, and power it just fine