ProSoundWeb Community

Please login or register.

Login with username, password and session length
Advanced search  

Pages: [1]   Go Down

Author Topic: PA SPEAKERS  (Read 1213 times)

Mike_Bax

  • Newbie
  • *
  • Offline Offline
  • Posts: 2
PA SPEAKERS
« on: February 17, 2013, 05:18:24 pm »

Now, this always confuses the hell outta me!!!!!!

I have 2 pairs of PA Speakers, with standard wiring (so I guess that if they get linked, they would end up in series?)

pair 1, Peavey EuroSys III, 150w rated 8ohm
pair 2, Marshall 6115H, 175w rated 8 ohm

Now, if I (on each side of the PA), ran into one of the Eurosys, then out into a Marshall, what would this give me?
About 300w at 4 ohm each side?

Like I said, ohms law may as well be another language to me.
Logged

James A. Griffin

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 758
Re: PA SPEAKERS
« Reply #1 on: February 17, 2013, 05:29:40 pm »

No, they won't be in series, they will be in parallel.  Yes, it will come out to 4 ohms (sorta).

But there is much to be concerned about when combining two such disparate boxes in hopes that the result is going to be attractive or even useful.
Logged
I need to determine where in this swamp of unbalanced formulas squatteth the Toad of Truth

Mike_Bax

  • Newbie
  • *
  • Offline Offline
  • Posts: 2
Re: PA SPEAKERS
« Reply #2 on: February 17, 2013, 05:40:03 pm »

Thanks for the quick reply. Would you explain your answer further please?

Would I be getting about 300w at 4 ohm each side?

Its a temporary measure, until I have the money for better speakers.
Logged

duane massey

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 992
Re: PA SPEAKERS
« Reply #3 on: February 17, 2013, 08:05:29 pm »

You aren't "getting" anything. The wattage rating on the speaker is the amount of power they are rated to safely handle. If the speakers are not identical in efficiency they will not have equal spl levels (volume or output), and they will probably have different sonic footprints as well. There are any number of potential problems involved, but I'll make it simple: if you are satisfied (or can live with) the results, great. If not, upgrade to 1 pair of speakers that will suit your needs.
Logged
Duane Massey
Technician, musician, stubborn old guy
Houston, Texas

Ivan Beaver

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 3573
  • Atlanta GA
Re: PA SPEAKERS
« Reply #4 on: February 17, 2013, 08:39:43 pm »

. If the speakers are not identical in efficiency they will not have equal spl levels (volume or output), and they will probably have different sonic footprints as well. There are any number of potential problems involved, but I'll make it simple: if you are satisfied (or can live with) the results, great. If not, upgrade to 1 pair of speakers that will suit your needs.
With loudspeakers-the fewer the better (ONE is ideal)-even if they are of the same model number.
Logged
A complex question is easily answered by a simple-easy to understand WRONG answer!

Ivan Beaver
Danley Sound Labs

PHYSICS- NOT FADS!

dick rees

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 5303
  • St Paul MN
Re: PA SPEAKERS
« Reply #5 on: February 17, 2013, 08:54:11 pm »


Now, if I (on each side of the PA), ran into one of the Eurosys, then out into a Marshall, what would this give me?


On the positive side, having one each per side would allow you to cover a wider area than just the Euro's or the Marshalls.  But .........

You will not get a discernible increase in output.  AND mis-matched speakers side by side will sound inferior to simply using one or the other pair.

The only possible way to make them "play nice" together might......MIGHT....be to run a "dual PA" where you would put the backing program through one set and the vocals through the other.
Logged
Pay no attention to the man behind the curtain...

Jay Barracato

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1325
  • Solomons, MD
Re: Re: PA SPEAKERS
« Reply #6 on: February 17, 2013, 10:57:56 pm »

On the positive side, having one each per side would allow you to cover a wider area than just the Euro's or the Marshalls.  But .........

You will not get a discernible increase in output.  AND mis-matched speakers side by side will sound inferior to simply using one or the other pair.

The only possible way to make them "play nice" together might......MIGHT....be to run a "dual PA" where you would put the backing program through one set and the vocals through the other.

If the op is asking series versus parallel  he probably doesn't have the amp channels to do dual stereo so he will need enough cable to go cross stage twice for dual mono.
Logged
Jay Barracato

Bob Leonard

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 4214
  • Boston, MA USA
Re: PA SPEAKERS
« Reply #7 on: February 18, 2013, 07:56:20 am »

On the positive side, having one each per side would allow you to cover a wider area than just the Euro's or the Marshalls.  But .........

You will not get a discernible increase in output.  AND mis-matched speakers side by side will sound inferior to simply using one or the other pair.

The only possible way to make them "play nice" together might......MIGHT....be to run a "dual PA" where you would put the backing program through one set and the vocals through the other.

Bingo, dual PA.  ;)
Logged
BOSTON STRONG........

Now touring nursing homes in a neighborhood near you..
Pages: [1]   Go Up
 


Page created in 0.115 seconds with 23 queries.