question! daisey chaining speakers

[bigbluesman]

Hi fellas,
If I run one 8 ohm main speaker from 1 amp, then plug a cord in the 2nd jack of that speaker and run it to the other 8 ohm main (they have 2 jacks in the back), are they in series or parrelel, and how many ohms do i have now? The more i read about it, the confused i get!

 

[D-Rock]

Are we talking from a combo amp to a speaker cab?
Can you be more specific with the gear being used?

 

[bigbluesman]

yes sorry... i have a powered mixer and 2 yamaha 8 ohm15&horn cabs. The powered mixer has a seperate amp for each main. I'v done that, but I like running them off of 1 amp better. so, I want to run a cord to 1 of the cabs, then out of that cab to the other.

 

[guitarslinger]

they're parallel.

two 8's = a four ohm load.

 

[bigbluesman]

ok so i guess if that amp supports 4 and 8 ohms, then im ok doing this, but i cant add anything esle to it....right?

 

[D-Rock]

they're parallel.

two 8's = a four ohm load.

But if you are chaining two cabs together then that would be series (?)

 

[guitarslinger]

they're parallel.

two 8's = a four ohm load.

But if you are chaining two cabs together then that would be series (?)

You are wrong.

The 2nd jack on the "middle" cab is wired in parallel with the "middle" cab's main jack.

I know it seems crazy, but I'm right.

 

[D-Rock]

they're parallel.

two 8's = a four ohm load.

But if you are chaining two cabs together then that would be series (?)

You are wrong.

The 2nd jack on the "middle" cab is wired in parallel with the "middle" cab's main jack.

I know it seems crazy, but I'm right.

Yup, you're confusing me.
Not sure about this middle cab stuff....
This is how I read his question:
1 speaker cable from amp to 1st cab @ 8 ohms.
1 speaker cable from 1st cab out to input of 2nd cab at 8 ohms.
So I see two 8 ohm cabs daisy chained together in series = 16 ohms.

Maybe it's the whole powered mixer thing that's throwing me off.

 

[guitarslinger]

they're parallel.

two 8's = a four ohm load.

But if you are chaining two cabs together then that would be series (?)

You are wrong.

The 2nd jack on the "middle" cab is wired in parallel with the "middle" cab's main jack.

I know it seems crazy, but I'm right.

Yup, you're confusing me.
Not sure about this middle cab stuff....
This is how I read his question:
1 speaker cable from amp to 1st cab @ 8 ohms.
1 speaker cable from 1st cab out to input of 2nd cab at 8 ohms.
So I see two 8 ohm cabs daisy chained together in series = 16 ohms.

Maybe it's the whole powered mixer thing that's throwing me off.

trust me, the speakers from the two cabs are not WIRED in series when you daisy chain speakers.

by middle cab, I mean the first cab the mixer sees in the chain.

 

[D-Rock]

So what if he had two speaker outs on the amp, and ran a cable from each intro each cab seperately?

 

[guitarslinger]

So what if he had two speaker outs on the amp, and ran a cable from each intro each cab seperately?

it would still be in parallel.

I just made this,

I hope it helps.

 

[JTyson]

Gene's right
Unless they specifically state otherwise on the jack, industry standard for chaining jacks is parrallel
been that way since Hendrix

 

[D-Rock]

Oh yeah, I'm not questioning Gene's logic, I'm just trying to wrap my head around it

 

[bigbluesman]

Very helpfull ! Thank you very much!

 

[Buckeyedog]

D-rock, believe me I struggled with it as well!! Gene is right though. Think of the other jack out of the first cab as a "parallel" out. That jack does NOT take the signal that has run through all the speakers first, then out to the other cab. It still basically splits the signal and runs to the other cab. I argued that with my old band mates and the PA. I lost!!

 

[stephen sawall]

Is it the same with guitar cabs ? I have never daisy chained guitar cabs myself.

 

[JTyson]

From what I have seen, if it is an unmarked 2nd jack, it usually is. They are almost always marked otherwise if it is not the case
I'm sure there are exceptions running around out there, but have not seen any myself in 30+ years

 

[bigbluesman]

I'v found that this works better in smaller venues for me..Its much easier to manage the sound from the stage. I wanted to make sure this would not damage my powered mixer. The book says it is rated 400 watts at 4 ohms and 300 watts at 8 ohms..So, I guess its cool....thanks

 

[sandman]

Listen to Guitarslinger !!! There is only one time in his life that he thought he was wrong...but he was mistaken

 

[guitarslinger]

Listen to Guitarslinger !!! There is only one time in his life that he thought he was wrong...but he was mistaken