I dont know, but, if your talking about the Bass Driver DI (there are a number of Tech21 sansamp units), then i must admit i love mine, im only going to sell it for one of two reasons:
1) If i get an RBI, its the Bass Driver in rackmount form with an added mid dial
2) If i get a programable Bass Driver, its the same as what i have now but essentially 3 channels you can set!
So, well, i really like mine anyways
