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[Dave Garoutte]

I'm trying to choose the best method when only using one single sub.

That's what my configuration was for.
I think you are over thinking this; it's actually fairly straight forward.
Just L and R sends, no aux sub.

Run full range left and right channel into the A and B inputs of both your amps.
Use the internal crossovers for the outputs for tops and subs.
On the left amp, the left channel goes to the top. (L to L)
On the right amp, the right channel goes to the top. (R to R)
On both amps, the left and right channels are summed internally and sent to the sub with the other output channel than the tops. (L+R to sub).

You will get stereo mains and mono subs, whether you are running one sub on either side or two subs.
You would mute the sub out you aren't using.

[Debbie Dunkley]

That's what my configuration was for.
I think you are over thinking this; it's actually fairly straight forward.
Just L and R sends, no aux sub.

Run full range left and right channel into the A and B inputs of both your amps.
Use the internal crossovers for the outputs for tops and subs.
On the left amp, the left channel goes to the top. (L to L)
On the right amp, the right channel goes to the top. (R to R)
On both amps, the left and right channels are summed internally and sent to the sub with the other output channel than the tops. (L+R to sub).

You will get stereo mains and mono subs, whether you are running one sub on either side or two subs.
You would mute the sub out you aren't using.

Thanks Dave....I see that now.
Couldn't get my head around it - maybe I needed a diagram....
Or maybe it is because  I had to make the decision to have my little 13 year old dog go to sleep today and I am not thinking clearly - it has been a very very sad day for our family.
I'm super cut up right now and wanted to distract myself by thinking about my rig - sorry I should have understood this earlier..

[Dave Garoutte]

Thanks Dave....I see that now.
Couldn't get my head around it - maybe I needed a diagram....
Or maybe it is because  I had to make the decision to have my little 13 year old dog go to sleep today and I am not thinking clearly - it has been a very very sad day for our family.
I'm super cut up right now and wanted to distract myself by thinking about my rig - sorry I should have understood this earlier..

 
So sorry.  It sucks losing a pet.

[Bob Faulkner]

Thanks Dave....I see that now.
Couldn't get my head around it - maybe I needed a diagram....
Or maybe it is because  I had to make the decision to have my little 13 year old dog go to sleep today and I am not thinking clearly - it has been a very very sad day for our family.
I'm super cut up right now and wanted to distract myself by thinking about my rig - sorry I should have understood this earlier..

Sorry to see this Debbie... I understand.  It is one of the most stressful decisions some of us have to make. 

[Nathan Riddle]

Thanks Dave....I see that now.
Couldn't get my head around it - maybe I needed a diagram....
Or maybe it is because  I had to make the decision to have my little 13 year old dog go to sleep today and I am not thinking clearly - it has been a very very sad day for our family.
I'm super cut up right now and wanted to distract myself by thinking about my rig - sorry I should have understood this earlier..

Debbie, sorry for the loss.

If distractions are helpful then we're here to help.

But by all means; put this on the back burner if it feels necessary.

All the best,
Nathan

That's what my configuration was for.
I think you are over thinking this; it's actually fairly straight forward.
Just L and R sends, no aux sub.

Run full range left and right channel into the A and B inputs of both your amps.
Use the internal crossovers for the outputs for tops and subs.
On the left amp, the left channel goes to the top. (L to L)
On the right amp, the right channel goes to the top. (R to R)
On both amps, the left and right channels are summed internally and sent to the sub with the other output channel than the tops. (L+R to sub).

You will get stereo mains and mono subs, whether you are running one sub on either side or two subs.
You would mute the sub out you aren't using.

^^ this is what I was trying to get at earlier.

Except forgo the 4 cables constantly. You only need two cables when running stereo.
You need 3 cables when running one sub.

If I'm thinking this through properly...
This actually works out well as you don't need multiple presets or to even think about maintaining sub/top ratio.
The +6dB gained from summing L+R makes up for the loss of the 2nd sub.

It becomes automatic.
No messing with console settings or summing the alt outs.
No aux subs.
No 100ballion presets.
KISSaint

In Armonia+
Config > Input > Ch. Settings > [Make analog first]
Config > Matrix > Ch. 2 (sub) > [analog 2 level up]

Single sub:
Stage Right (house left)
mixer_L-out > T602(Left)_Ch1 > Main L

Stage Left (house right)
mixer_R-out > T602(Right)_Ch1 > Main R
mixer_L-out > T602(Right)_Ch2 > Sub (summed R & L)

Stereo Subs:
Stage Right (house left)
mixer_L-out > T602(Left)_Ch1 > Main L + Sub L

Stage Left (house right)
mixer_R-out > T602(Right)_Ch1 > Main R + Sub R

[Robert Lunceford]

Have you considered running a single PRX sub with the SM80s for your smaller jobs?

[Paul Miller]

Debbie I'm so sorry you had to put your dog to sleep. This Danley business can wait, just take care of yourself. I'll be keeping you and little doggo Dunkley in my thoughts.

[Scott Olewiler]

With all those factors I would just use the crossovers in the amp and run the rig in stereo.  As I mentioned earlier I am sure you have all your inputs high passed appropriately to keep the mud out of your mix so the aux fed some seems like a diminishing return once this entire picture is factored in.

I agree with the Scott's assessment of diminishing returns on all of this.

Debbie,

Understanding your desire to not lose any content when only using one sub, but are you actually panning anything that has a lot of sub content in it in the first place? Except for a stereo keyboard, or pre recorded stuff; I don't see that you're really going to lose much sonically only using one sub in a stereo configuration.

I'm thinking that most things that are typically panned would be high passed enough to either not be in the subs, or in the case of small room;  where you typically would be only using one sub aren't in the FOH enough to notice, like drums.

Before you get too complicated and start running all these addition cables to your amps you might want to set up your next gig in stereo, then try try turning off one sub in the stereo configuration,of course  turning  it up to compensate for the lost volume and then see what you're actually losing sonically.

Depending how you typically set you HPFs, you may find you're not losing anything.

[Debbie Dunkley]

I agree with the Scott's assessment of diminishing returns on all of this.

Debbie,

Understanding your desire to not lose any content when only using one sub, but are you actually panning anything that has a lot of sub content in it in the first place? Except for a stereo keyboard, or pre recorded stuff; I don't see that you're really going to lose much sonically only using one sub in a stereo configuration.

I'm thinking that most things that are typically panned would be high passed enough to either not be in the subs, or in the case of small room;  where you typically would be only using one sub aren't in the FOH enough to notice, like drums.

Before you get too complicated and start running all these addition cables to your amps you might want to set up your next gig in stereo, then try try turning off one sub in the stereo configuration,of course  turning  it up to compensate for the lost volume and then see what you're actually losing sonically.

Depending how you typically set you HPFs, you may find you're not losing anything.

Thanks Scott - good idea and good points.  That would be an easy and fast test for me - will do.


BTW - Thank you everyone for all the kind comments regarding my sweet little Bella. She certainly stole my heart.
I have owned dogs and cats all my life and have loved and still love each and every single one of them but sometimes one takes all of your heart - Bella was the one.

[John Sulek]

Sorry to hear about the loss of your beloved dog.

When you feel up to being distracted by gear...
One other benefit of doing the sub signal summing internally in the amps is that you would still have your alt output free for record/delay/etc.
Dave's pencil cad drawing is the best explanation yet.
No extra cabling required, as no matter how you do this (summed at mixer/aux fed/summed at amps), there will be two signal cables required to each amp. With your D snake and console on opposite sides they are just short jumpers.

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