@Soon
If you're looking for authentic SRV tone live (You could always re-amp for a studio tone) then according to this article you will need several things, but the two that might apply to you are:
1. Multiple AFXs replicate the many combinations of amps that SRV used simultaneously, plus an incredibly good ear to figure out which combo he used in the studio or live or whatever you're trying to match.
OR
2. More practice as the article mentions anecdotal evidence of Stevie sounding like Stevie when using other player's rigs.
If you're looking for authentic SRV tone live (You could always re-amp for a studio tone) then according to this article you will need several things, but the two that might apply to you are:
1. Multiple AFXs replicate the many combinations of amps that SRV used simultaneously, plus an incredibly good ear to figure out which combo he used in the studio or live or whatever you're trying to match.
OR
2. More practice as the article mentions anecdotal evidence of Stevie sounding like Stevie when using other player's rigs.