how to run p99rs do i really need 4 different amps and sub ?

[mio 10+ year member]

Hi do i need really 4 different amps for my p99rs right now i do have
morel virtus nano 602 front 3 way system and rear jl audio 5 series and mosconi 120x4 amplifier 480w total

so i need more amplifiers and sub or i will be able to run ok and fine p99rs i also have for each speakers cross overs from morel and jl audio...
so 4 cross overs too.

in my countrie audio installers told me that since head unit have
4RCA High Voltage 5V Pre-Outs - i need 4 different amplifiers or 4 of the same but 4 amps min.

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