K&K is coming out with a new preamp soon. It will be called the tri star and for you guitar players with the K&K three pickup this will allow you to change volume of any and all of the three transducers so you will be able to finely balance your sound. It will be an onboard pre so will mount inside your guitar.
They are also working on a new mandolin preamp with tone controls more inline with the mandolin and should help with all that annoying pick noise. This will follow the tristar.