Effects like Reverbs and Delays SMOOTHENS your voice... pero karamihan MAHAL when talking about price... especially the RACKMOUNTS...
But you can use GUITAR EFFECTS if you have...
Kung wala pa rin, DVD player na lang, Yung may " ECHO " ... get a PL55 Cable, from SEND ng MIXER, pasok mo sa MIC in ng DVD Player, adjust some ECHO on the player, connect an RCA ( from DVD Player's Audio L/R out ) to PL55 Cable then RETURN it to MIXER.... ayan may EFX ka na...INSTANT!