#1
I was wondering if sending a quality DI box into an FX pedal improves the sound, or is the presence of the FX pedal negating the need for one?

I was thinking specifically about distortion pedals or Tech 21's amp modelling pedals like the California or VT Bass which aren't DI boxes in any way themselves.

Many thanks!!!
#2
It depends on the exact effect pedal you are using. If you are using a rackmount studio effects unit which is not designed for guitars, you should put a DI in front of it.

Apparently, Tubescreamers (and i assume most similar pedals) work as a DI because of the input buffer.
A metal band?
Gear:
A Guitar with an LFR > Korg Pitchblack > Behringer EQ > Hardwire CM-2 Overdrive Boss SD-1 > Hardwire CR-7 Chorus>
Orange Tiny Terror >
LzR Engineering 212 cab

My other amp can run Crysis
#3
Cheers for the quick reply! I suppose stuff like amp modellers are the same in that case