Will it work?

[nate12346]

I scored 3 incredible home theater speakers and am in the design stages of making a custom setup for my b2.

My question is, can I wire up the left and right normally and then link a positive from the left and a negative from the right to make a center mono channel?

I dont care about ohms or watts. I just want to know if it will work yes or no before I try it and possibly fry my amp

 

[pangborn83]

I dont care about ohms or watts. I just want to know if it will work yes or no before I try it and possibly fry my amp

Improper speakers (those without the correct ohm ratting) will fry an amp. If the amp is 4ohm stabble that is what you need. Home audio speakers are not usually 4 ohm and unless wired to yeild 4ohm will most likely damage the amplifier in a short period.

 

[4x4fun]

you want to run channels 1 and 2 and bridge bridge the two channels .......thats a fire waiting to happen

will it work yes, your running one circuit in parrell. and sharing a ground on the other. it would put out music, would it make a mono channel.....prolly not.......would it distroy three nice speakers and the amp its connect to.......mos def

 

[nate12346]

Improper speakers (those without the correct ohm ratting) will fry an amp. If the amp is 4ohm stabble that is what you need. Home audio speakers are not usually 4 ohm and unless wired to yeild 4ohm will most likely damage the amplifier in a short period.

I already know that but thanks though. That's why I said I don't care about ohms or watts. It has already been taken care of by searching...:

How do I calculate Ohms:

If you connect your amp to one speaker, the ohms rating is equal to that speaker's ohms rating. An 8 ohms speaker would have a rating of 8 ohms.

If you wire two or more speakers in series, you add the ohms rating together to get the total ohms. I know what series & parallel wiring is from grade school science. It's hard to describe without diagrams, so I'll keep my description minimal. You can refer to the diagrams in the articles from my bibliography if you need more help.

My grade school science book had the example of christmas lights. When you wire the lights in series, you connect the + terminal of one light to the - terminal of the next light. The electricity flows through one light, and then on to the next. If any of the lights goes out, or any of the connections breaks, all of the lights go out. The connection is broken.

This increases the total resistance, reducing the total acoustical output. That is, because the electricity has to flow through each speaker one at a time, each speaker adds it's resistance to the whole. The formula is as follows:

Speaker A + Speaker B = Total Ohms Rating
8 Ohms + 8 Ohms = 16 Ohms

Two 8 Ohms speakers wired in series will have a total rating of 16 ohms.

How do I calculate Ohms - Parallel Wiring

Parallel wiring is something entirely different. If one of the Christmas lights goes out, none of the others goes out. Visually, this looks like a ladder, with each light in the center of a rung. Remove one of the rungs, and the electricity still flows to the next rung via the sides of the ladder.

This reduces the total resistance increasing the total output. That is, because electricity flows through all of the speakers simultaneously, each speaker added reduces the resistance of the chain. If you visualize all of the negative electrons on one side trying to get to the other, they'll have an easier time because there are so many possible paths for them to go by.

Resistance = (Speaker A x Speaker B) / (Speaker A + Speaker B)
Resistance = (8 Ohms x 8 Ohms) / (8 Ohms + 8 Ohms)
Resistance = 64 / 16
Resistance = 4 Ohms

Another calculation I've seen, which may be the same formula stated a different way, or may be more accurate or less accurate is:

Resistance = 1 / (1/Speaker A + 1/Speaker B)
Resistance = 1 / (1 / 8 Ohms + 1 / 8 Ohms)
Resistance = 1 / (2/8)
Resistance = 1 / .25
Resistance = 4 Ohms


you want to run channels 1 and 2 and bridge bridge the two channels .......thats a fire waiting to happen

will it work yes, your running one circuit in parrell. and sharing a ground on the other. it would put out music, would it make a mono channel.....prolly not.......would it distroy three nice speakers and the amp its connect to.......mos def

That is what I wanted to know
thanks 4x4

 

[4x4fun]

That is what I wanted to know
thanks 4x4

if your going to try this let me know how it works out. theres alot that can go wrong with this depending on your amp it might work for a while. i never though about doing this. idk how an amp will take the mixmatch load on the circuitry. you seem to have looked it up alot. make sure channels 1 and 2 are correctly wired and terminating, then bridge them. it will all depend on how your amp is made. if it were me, i would make sure the + that will "run" both speakers is the + that u would use to normally bridge the amp. and make the double - the -for the bridge as well

things that could go wrong: it could make a short, and melt and or catch on fire.

it could not work at all

have an unstable ohm load, and blow a channel or both,

blow all the speakers,

and or any combination of the above.

 

[4x4fun]

side note, AllanD is a techy on here, who is prolly your best bet as far as how the circuitry will handle this.......if this is interesting enuff for him to come out of his hole and grace us with his presence.

 

[Alex FX4]

Hes done his homework. the amp could car less as long as the total resistance is equal to 4 ohms.

 

[4x4fun]

Hes done his homework. the amp could car less as long as the total resistance is equal to 4 ohms.

not true

it could all equal 2 ohms and be just fine as well. having said that.
not knowing how the internals of the amp are created taking electrons from one circuit and moving them to another, could have bad results. not to mention, he hasnt said what amp he is useing or and ohms loads he has.

 

[Alex FX4]

not true

it could all equal 2 ohms and be just fine as well. having said that.
not knowing how the internals of the amp are created taking electrons from one circuit and moving them to another, could have bad results. not to mention, he hasnt said what amp he is useing or and ohms loads he has.

i assumed the amp was a 4ohm amp. it all depends on the channels the amp has. He used the word speaker so i assumed its one channel. in a one channel amp a 4ohm speaker is the same as a bunch of speakers wired in parallel equalling 4 ohms total. If you combine channels you need to double the resistance so in this case 8 ohms. combining channels will cause distorion becuase the waves from one channel usually dont perfectly match the second even if its the same signal on both channels. You will get a notched wave pattern and it wont sound good.

 

[4x4fun]

i assumed the amp was a 4ohm amp. it all depends on the channels the amp has. He used the word speaker so i assumed its one channel. in a one channel amp a 4ohm speaker is the same as a bunch of speakers wired in parallel equalling 4 ohms total. If you combine channels you need to double the resistance so in this case 8 ohms. combining channels will cause distorion becuase the waves from one channel usually dont perfectly match the second even if its the same signal on both channels. You will get a notched wave pattern and it wont sound good.

please reread the op

 

[Alex FX4]

please reread the op

i see sorry about that. and to the op. you can do this but it wont work good as i said. You will need to double the the amps ohm requirement and all three speakers will be in parallel so im not sure you can get it very high. You will get distortion no matter what and it will sound bad.