What is an Ampless rig?
That's where the ampless rig comes in – the concept of a full guitar setup for home, stage or studio – but without a big box of an amp.
Do amps need pedals?
Some amplifiers even have built-in effects and/or patches to achieve different sounds. A common effect to be found in amplifiers nowadays is reverb. ... So although pedals are certainly not necessary, they can make your sound much more interesting, dynamic and give your guitar a great variety of characteristic sounds.