I've got a song I'm mixing with 10 drum tracks right now, the usual including one OH and one Room track. (I've discovered parallel compression thru this forum, adding a bus send from each track to a parallel drum compression bus, and it works great !  thanks !)  Then I went ahead and thought I'd try the same to add reverb, so a parallel reverb bus was explored...  may or may not keep that, but it does also "sorta" work (with this method you can change each send to affect how much reverb each drum gets, but you always have the main dry signal from the master bus in the output as well). 
Anyhow, now I'm thinking that I'd like to be able to EQ the whole of the drum kit with one EQ to balance it for any given song. I can add an EQ to the master bus (which is supposed to be a no-no...  supposed to keep plugins off the master bus..., right, as we're mixing here, not mastering?) but that doesn't pick out the drums specifically.
Any suggestions on how to be able to EQ all the drum tracks with one single EQ when you use a parallel compression bus and perhaps other parallel drum buses?
Any other good ideas for mixing drum tracks?

I might not be helping you at all, but, I would do subtractive eq on a track basis, and perhaps boost on bus (if needed). If the drums are not loud enough, lower the rest (of the buses, or on track basis), to taste.
Best of luck.

Hi Chevy,
There aren't any hard and fast rules, but it's common practice to sum all the drums, including parallel paths, to a single drum bus and put FX there. Also, there's nothing at all that says you can't put fx on the 2-bus...in fact, it's pretty common. For example, I spread my instrument stems across my SSL and run them through a bus comp and eq before capturing back into Sonar. That setup is super common among folks who still work in analog or hybrid setups. Don't squash them too much and leave some room for the M.E., but a little comp and eq on the 2 isn't going to hurt anything as long as you're judicious about it's use.
 
Dean

Route all of your drums to it's own drum bus.
 
Do all of your EQ & compression on the individual tracks - you can add a global EQ on the drum bus IF it's needed. You can also add a further compression stage on the bus
 
Insert sends on your drum tracks to the drum reverb bus. 
 
Whatever reverb you choose, make sure it's set to 100% wet. Several plugins offer separate faders for the wet/dry level, in which case turn the dry level all the way down.
 
I quite often split out my toms to a tom bus so i can treat them all in one go, then route this to the drum bus.
I find it also helps to route kick & bass to a Bass bus. Muting this should totally remove the low end form your mix - anything else which pokes out should be EQ'ed appropriately to get rid of any LF build up

I'm not entirely sure on your philosophy but here's what I do "normally":

- EQ, gate/compress all individual drumtracks as necessary and route them all to a bus for easier total level control.
- Create sends on all tracks to another bus which I compress heavily, the parallel compression bus basically. I tend to use pre fader sends and listen to the bus to make a mix but you can also use post fader sends at unity gain to follow whatever mix you make with your faders. If I have a real room mic recording, sometimes that's the only thing I will send to the parallel compression bus. If I don't have one, often I'll add a small room reverb to the bus before I hit the compressor.
- Create a separate bus with a 100% wet reverb on it and send from individual tracks as necessary (usually snare and toms at least). I usually label this "drum reverb" but it's otherwise separate from any bus routing or parallel compression.
- Route the regular drumbus and the compressed one to a new bus for final adjustments to the total drumsound.

This final drumbus gets sent to the master bus.

Yep

Bristol_Jonesey
Route all of your drums to it's own drum bus.
 
Do all of your EQ & compression on the individual tracks - you can add a global EQ on the drum bus IF it's needed. You can also add a further compression stage on the bus
 
Insert sends on your drum tracks to the drum reverb bus. 
 
Whatever reverb you choose, make sure it's set to 100% wet. Several plugins offer separate faders for the wet/dry level, in which case turn the dry level all the way down.
 
I quite often split out my toms to a tom bus so i can treat them all in one go, then route this to the drum bus.
I find it also helps to route kick & bass to a Bass bus. Muting this should totally remove the low end form your mix - anything else which pokes out should be EQ'ed appropriately to get rid of any LF build up

Good advice

Why not route all the drum buses to another single bus which contains the overall eq and outputs to the master bus?

Bristol_Jonesey
Route all of your drums to it's own drum bus.
 
Do all of your EQ & compression on the individual tracks - you can add a global EQ on the drum bus IF it's needed. You can also add a further compression stage on the bus
 
Insert sends on your drum tracks to the drum reverb bus. 
 
Whatever reverb you choose, make sure it's set to 100% wet. Several plugins offer separate faders for the wet/dry level, in which case turn the dry level all the way down.
 
I quite often split out my toms to a tom bus so i can treat them all in one go, then route this to the drum bus.
I find it also helps to route kick & bass to a Bass bus. Muting this should totally remove the low end form your mix - anything else which pokes out should be EQ'ed appropriately to get rid of any LF build up

Ok...  sorry for being slow on the pickup...  have done very little bus routing... are you saying by "Route all of your drums to it's own drum bus", do you mean route all the drum tracks pre-fader thru insert sends to a new drum bus?  And then just pull the actual drum track volumes down to zero (using the sends for balance) ?  If you don't pull the track volumes down, it seems you will always have the dry tracks playing at the same time as the drum bus tracks, and EQ'ing the drum buss will just be a parallel EQ bus. 

Here's a video from a mix series I did recently about me mixing drums, It's how I approached this song, each song can take different approaches. If you watch the first video in the series it concentrates on setting up a session including routing.
Drum Mix video ---> https://youtu.be/738p71Ly-Nc
Session set-up video ----> https://youtu.be/LF6EngBNhxM