NEWBIE 4 ohm 500 speakers and 8 Ohm 1200 mixer

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Ben Thomas

Freshman
Aug 27, 2012
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Hi Guys....I am so new here and to sound in general. I am the singer in a band and my vocal is being out powered. I need some advice. I have a Berhinger 5000 eurolive 20 track desk which is 8 Ohms and 2 4 ohm 500 watt (2000 peak) speakers. I am sure that the thing should be louder as I had a 250 watt rig in my old band which is much louder and cleaer. I don't think I can bridge them because of the Ohms. Can anyone help and give me some advice? Is there a decent affordable power amp that would help me drive my speakers (96dcb). Sorry this is not review but with some help I would love to review my rig :)
 
Re: NEWBIE 4 ohm 500 speakers and 8 Ohm 1200 mixer

Hello Ben, kudos to being in the 10% of people that actually post with their full name on the first try.

My question is specifics - what model numbers are the speakers and the powered mixer?

Am I understanding correctly that the powered mixer does not provide enough power to get your speakers loud enough?

Once we get specifics, we can guide you to a solution. The solution may not be more power.
 
Re: NEWBIE 4 ohm 500 speakers and 8 Ohm 1200 mixer

Thank you for a prompt reply, this has been driving me crazy. Here are the products:

Speaker (X2) Berhinger VP 2520 (X2)

Desk: Berhringer EUROLIVE 5000

They are easy enough to find on a simple Google search but the specifics are to hard for me to define :)

Thanks once again
 
Re: NEWBIE 4 ohm 500 speakers and 8 Ohm 1200 mixer

Ben Thomas said:
Thank you for a prompt reply, this has been driving me crazy. Here are the products:

Speaker (X2) Berhinger VP 2520 (X2)

Desk: Berhringer EUROLIVE 5000

They are easy enough to find on a simple Google search but the specifics are to hard for me to define :)

Thanks once again
Click to expand...

There appear to be two main results for the mixer in Google searching:

This or This

The speakers look loud enough, if that means anything at all. Over which sort of band is he trying to be heard?
 
Re: NEWBIE 4 ohm 500 speakers and 8 Ohm 1200 mixer

Its the first link there buddy, we are a rock band, but I know for a fact its not firing at 500 per side...ive got it maxed out and its only just on par with the rest of the band's volume (pub/bar gigs) The mixer is a beauty but im worried that its only sending 250 to each speaker as the volume mimics my old 250 watt set up, there is no sound difference.
 
Re: NEWBIE 4 ohm 500 speakers and 8 Ohm 1200 mixer

First, I'm going to say that the difference between 250 watts and 500 watts is only 3dB - probably not enough to notice unless you're doing a direct A/B comparison.

That said, I've found your problem:

attachment.php


Essentially, you're only providing 130 watts to each of your speakers, and that's likely an overestimated figure. A speaker rated 500 watts RMS and 2000 peak is usually safely powered with an amp rated for about 1000 watts per channel (double RMS wattage). So if you could find an amp that does 1000/channel @4 ohms, you'd definitely get a LOT more performance out of those speakers. The difference between 130 watts and 1000 watts is about 8.9dB, a very plainly audible increase.

There should be plenty of cheap amps available, check the Marketplace.
 
Re: NEWBIE 4 ohm 500 speakers and 8 Ohm 1200 mixer

You have been a super star mate. I will get looking right away, Im been the moaning singer for the last few gigs, our guitarist thought a power amp would work and thanks for confirming that.

I will post a full review on this rig :)

Thanks again

Ben
 
Re: NEWBIE 4 ohm 500 speakers and 8 Ohm 1200 mixer

That looks great but I am in the UK. Sorry to ask so many questions, but just to clarify, my speakers are 500 watts per speaker, but I am looking for an amp with 1000 watts per channel @ 4 Ohms

Thanks again for your help.
 
Re: NEWBIE 4 ohm 500 speakers and 8 Ohm 1200 mixer

Your speakers are 500w RMS, 1000w Program, and 2000w peak. The program rating is what you use to size an amp to speakers. So 1000w per channel at 4 ohms is what you need.

If that isn't enough - have the guitar players turn down or sidefire the amps or mic them backstage. Have bassist turn down if needed, and if really small rooms, maybe even a plexi shield or similar around the drums. Sometimes the need isn't more of the 'good' sound, but less of the 'bad' sound.
 
Re: NEWBIE 4 ohm 500 speakers and 8 Ohm 1200 mixer

Silas Pradetto said:
That said, I've found your problem:

attachment.php


Essentially, you're only providing 130 watts to each of your speakers, and that's likely an overestimated figure. A speaker rated 500 watts RMS and 2000 peak is usually safely powered with an amp rated for about 1000 watts per channel (double RMS wattage). So if you could find an amp that does 1000/channel @4 ohms, you'd definitely get a LOT more performance out of those speakers. The difference between 130 watts and 1000 watts is about 8.9dB, a very plainly audible increase.
Click to expand...
The attached image is not coming through, however according to http://www.behringer.com/assets/PMP1000_P0566_M_EN.pdf while the amp output of the PMP1000 is 130W per channel into 4 Ohms, the output of the PMP3000 and the PMP5000 that they apparently have is 450W per channel into 4 Ohms (RMS at 1kHz). Then you're back to 1,000W versus 450W and a 3.5dB difference.

Is there any way to get an idea of the levels you are getting from the system and how much louder you think it needs to be? That might help in determining if what you have should work and if not, what may be required.
 
Re: NEWBIE 4 ohm 500 speakers and 8 Ohm 1200 mixer

Brad,

Sorry in delay of reply. It is so quiet, the drums out power the vocal and I'm driving the thing on full. I have just bought this Behringer iNUKE NU3000 Power Amp at Gear4Music.com so I will be able to hear this with 880 watts in each side.

May I ask for some advice on the best way to now rig this up. That's the 5000 mixer, the Inuke power amp and 2x4 Ohm (500 watt speakers)

Thanks

Ben
 
Re: NEWBIE 4 ohm 500 speakers and 8 Ohm 1200 mixer

In short, the set up I have had is sounding awful, i'm up FULL and clipping and the vocal isn't clear at all. It sounds OK a little quieter but then it can't be heard. It's driving me crazy :-(
 
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