Hi.
Is there any simple way to calculate (or even educated guess) how much loss speakers makes when connected in series?
If i have 3 speakers connected as series, the first prolly consumes power from other two? Not much…or much?
I made a uncool picture to present the thing.
Hi, that is parallel not series so total ohms would be around 2,6 ohms
Total watts wil be the watts of your speakers added together.
I don’t think you will experience loss in some form, but definitely not an expert on this…
Yeah, on picture it certainly looks parallel, but i mean serie. Too lazy to draw new picture 
Okay. I’m brushing up on my Ohm’s law, because I’ve been trying to understand this for setting up rigs.
As pointed out, your picture shows them in parallel. If you want them in series, make sure they’re in series.
None of those speakers make power. They have zero watts. What they have is a peak power handling capacity.
Each speaker is effectively a resistor with a set load value. If they are connected in series, the total load is the sum of all their loads. So if each is 8 ohms resistance, in series, they would provide 24 ohms of resistance.
Your amplifier makes X watts at Y ohms of resistance. If that amp produces 1000 watts across 4 ohms, it will make roughly 170 watts at 24 ohms resistance.
Note that this is my THEORETICAL understanding, and any guidance it may give you is worth what you are paying for it.
That’s not really how electricity works, but I’m not sure it’s relevant. This looks like an example of the xy problem* and you’ll probably get better responses if you explain what you’re hoping to accomplish with these speakers in series.
Nothing uncool about that diagram, a bit more graphic than schematic, but it is trying to graphically show how you might be wanting to do something with your set-up.
In addition to Ohm’s Law (OL) as mentioned, it would be prudent to also learn the Power Law since it interacts 2 of the 3 variables of OL.:
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I had to cram this back when I got my ham license. I do not have it to memory anymore and unless I needed it for my work, I just keep the charts handy for when the need arises.
Understanding of those two and an entry level understanding of basic electricity will take you far if tinkering.
on edit:
@Ek_Bass no disrespect, I do not know your knowledge base, but heed the comment by BillN above because your question does not make sense with respect to the terms you are using (asking) for the answer in which you are seeking.
Along with the law principles above, correct term usage will assist in others getting you a better answer.
Sorry, I tend to be nerdy on this stuff as it was passed on to me by my father, whose ham call sign I inherited ( he got it in the mid 30’s as a teenager)… and he made me learn basic theory with accuracy and precision, as well as the importance of the terminology.
Well, I got to know a little about the information written in my own language.
So, if I connect, for example, 3 100w/8ohm speakers in series, the first one does not “eat” power from the others, but all of them get the same power, which is power (w)/number of speakers because they are all 8ohm. Simplified.
For some reason I had understood that, for example, a 300w 15" subwoofer could be used to distribute sound by connecting the wires to it first and then it would, as it were, take “bass power” from the smaller speakers.
I live and learn 
The speakers will all see an equal distribution of the amount of wattage the amp can put out at 24 ohms. One speaker doesn’t “eat” output from the others. How the volume from each speaker is balanced would depend upon it’s sensitivity as measured in dB. For instance; a speaker with 100dB sensitivity will produce more volume than one with 96dB sensitivity from the same wattage output.
Now I have some questions.
What is the wattage output of your amp @ 8 ohms?
Are all three speakers identical in size and sensitivity?
Are you aware that by increasing the ohms the amps output will be reduced? For instance. My amp produces 350w @ 4 ohms but only 175w @ 8 ohms. As you increase the ohm load the output will continue to be reduced. What are you trying to accomplish in doing this?
For example; An amp producing it’s full 1000w at 4 ohms will only produce 166.67w @ 24 ohms. Each speaker will see an identical output of 55.56w. They will share the wattage equally and their volume output will be equal ONLY IF all speakers are the same size and have equal sensitivity.
Leaving this quote from @itsratso here. Let us know more about what you’re hoping to accomplish.
I hope this helps.
gee thanx Eric!
That sums it up very well from a less technical more practical standpoint.
Most of us add cabs in order to take full advantage of our amps output at 4 ohms vs 8 ohms but we’re adding cabs or extension cabs for combos to increase our available wattage not decrease it which is why I wondered why you would want to run a 24 ohm load and how the amp will handle that.
Some amps will handle loads down to 2.0-2.67 ohms to accommodate more speakers but doing so doesn’t increase wattage it just increases speaker area and therefore volume and/or dispersion. But as the post by itsratso warns don’t do it with any amp that can’t run a load under 4 ohms. It will not appreciate the effort and you may end up frying the amp to a crisp. Be kind to your gear and it will be kind to you.
Okay. I think I understand where your confusion is. The power ratings on speakers is the amount of power they can HANDLE, not the amount of power they provide. They do not provide any power. The AMPLIFIER provides power.
Speakers have a wattage rating so that you do not accidentally blow them out by overpowering them. E.g. If you hook up a “200 watt” speaker to a 300w amp and turn it all the way up - you will probably blow up the speaker by overpowering it.
If you have a combo speaker/amp, it has power, but it is the amplifier portion that provides that power. You could open it up and rewire additional speakers into the circuit, but you will just be distributing the power differently.
Also, I suspect you may not understand the difference between series and parallel. Here is a quick, literally back-of-the-napkin diagram.
I woke up this morning a little “spaced” out…
I swear these are the images that I interpreted before reading:
@BeerBaron Perhaps he is trying to ask about a crossover?
@Ek_Bass see snip below, is this what you are trying to ask?
The snipped definition above uses the word “music.” I would refer to it as the term “input signal.”
What Is A Speaker Crossover And How It Works - Speakergy.
(sorry, I tend to get nerdy, hope it does not come across as condescending… I do not mean for it to be that way.)
