My question is... why? His tone is a generic high gain tone, with mindless sweep picking. That said, you're only option is going to be a modeller of some kind; Roland Microcube, Randall RG, along those lines.
the amp doesnt matter when it comes to herman li's effects laden tone

so $200 would be sufficient, but you'll need a lot of $$$ for the enhanment pedal and studio magic

lawl jkjk
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Quote by Dempsey68
get a cheap marshall... my MG15DFX has a button that simulates the sound of one of the expensive tube marshall amps.
Quote by creativlogic
Any suggestions on a $200-$300 Combo amp for a sound similar to Herman Li?

looool wah+whammy pedal costs more than your enitre budget, his sound is pritty crappy but i agree with the randall rg idea
get a line six spyder
Quote by envoykrawkwar7

that was an epic win
best thing ive read all day

[feel free to sig this statement]

Esp Ltd Ninja 600
Esp Ltd F-50
les paul elite
5watt jcm800 clone
Roland jc-55
Crate V33
Ibanez tubescreamer ts9
Keeley ds-1
Valvetronix is my favourite modeling amp. That being said, a small Crate Palomino tube amp and an OD/EQ would put you in that range of gain, with real tone to fall back on if you ever end up wanting it.