Which high powered class d amp ?

[gasolin75]

What amp would you recommend and why?

FX-AUDIO FX1002A TDA7498E Class D Amplifier 2x100W / 4 Ohm Black - Audiophonics

Do i need to make any upgrade,modifications?
FX-AUDIO FX1002A TDA7498+TL082 what's wrong?

Or this amp volt+ with stepped attenuators VOLT+ With Stepped Attenuator

Any upgrade modifications i should do ?