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Parallel Cabinet

I am thinking of running a Parallel cabinet to my mesa Boogie Subway Ultra lite series. I am currently running the Subway wd800 Through the subway 115 and 210. The 115 is rated for 400 watts at 8 ohms and the 210 is 600 at 8 ohms. I was originally going to add on another 210 to get the 410 at 200 per cabinet but I am really digging the sound of the 115 on it's own.
I also have a 410 powerhouse cabinet I keep for Larger gigs. I hooked up the 115 with it both running at 400 watts and there was a slight difference but i think the 115 was present but not as much as the 410.
My question is, I know they say to run 410 together but would 2 115 running parallel at 200 watts each and a 210 running at 400 be compatible sound wise or will the 2 115 drown out the 210? Worse comes to worse i could just get both and run 2 210 and 2 115 all at 200 watts each.
What would be a good combo in this situation?
Just to clarify, I don't use the powerhouse 410 as much because of the weight on it. I usually move my equipment alone to gigs so the subway series was the best solution to transport everything without breaking my back.
 
With the amp set to 2 ohm load position, it should work fine, but sounds like a lot of work for not much if any real gain.
 
With the amp set to 2 ohm load position, it should work fine, but sounds like a lot of work for not much if any real gain.
You are absolutely right. I love the sound from it but want to add something. Maybe i should just go with 2 115 at 400 each.. The sound will be different than 210 and 115. Will i like it more or less is the true question..
 
You are absolutely right. I love the sound from it but want to add something. Maybe i should just go with 2 115 at 400 each.. The sound will be different than 210 and 115. Will i like it more or less is the true question..
Why stop there? Get the 215 and run it with your 115 for a 315 stack. That's what I do and it's glorious.
 
This is an option as well :)
IMG_2969.jpeg
 
would 2 115 running parallel at 200 watts each and a 210 running at 400 be compatible sound wise or will the 2 115 drown out the 210?

Subway 115 and 210 are both 8 ohm cabs. So if they are connected in parallel they will share available power pretty much equally.

At 800W, each cab will get ~267W
At 600W, each cab will get 200W

Sensitivity a 1W/1m
115 = 98.5dB
210 = 98.1

The difference in SPL will remain 0.4dB as long as each cab gets the same power.

Calculated SPL per cab at 267W
115 = ~122.8dB
210 = ~122.4
Calculated SPL per cab at 200W
115 = ~121.5dB
210 = ~121.1dB

Notice the difference in SPL is still 0.4dB.

Three cabs is likely overkill. If you feel motivated, try it and judge for yourself.