Karaoke Forums

A friend has for sale 2 15" sound barrier passive speakers, plus 2 speaker stands...also a 12 channel Behringer Mixer powered, 1200 watts I think, not sure yet..i can't find out a lot about the speakers, I did find the spec's and there not bad at all, rated at 400 watts....he wants $300.00 for all...not really the way I wanted to go but really hard to turn down...what do ya'll think? I couldn't find a price anywhere on the speakers... he's going to let me borrow them to try-um out so I guess we'll see..
anyone ever heard of these speakers?

Not knowing model numbers, hard to say. Never heard of the speakers in question. Are any of these them?
http://www.soundbarrier.com/professiona ... aspx?id=73

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Had a pair of those speakers. Great sound out of them from my system. I would still use them today if they hadn't been stolen from me.

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The Line Array Experiment is over. Nothing to see here. Move along.

hi danny, yea i'm thinking I may wind up owning these...ty a lot

ok this is the speaker but i'm guessing an older model, it's 500 watts...http://www.soundbarrier.com/professiona ... spx?id=417

and this is the mixer...http://www.sweetwater.com/store/detail/ ... 7AodE0cAOQ

Hate the mixer, but $300 for the speakers would be an ok deal with the mixer thrown in.

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If your links are correct, the mixing amp actually puts out 90 watts per channel @ 8 ohms, no where close to 1200 watts, and the speakers are rated to 325 watts/8ohms program. Behringer uses some tricky ratings in their ads, usually the bridged 4 ohm rating, but if you look at the manual, you'll find the 8ohm rating with both channels driven is 90 watts per channel.

The mixing amp is wayyyy underpowered for anything other than home use in a small room, and you are going to have muddy sound in those speakers at any appreciable volume due to the low power of the amp.

Offer the guy $200 for the speakers, then go get a mixing amp that matches the speaker specs. That mixing amp is pretty worthless.

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C Mc
KJ, FL

ty alot lon...kinda glad its pretty much junk...but the speakers do show great spec's IF you can believe um...ty again

the mixer if I remember right was 150 watts @ 8 ohms 300 @ 4 ohms

so do ya'll believe the speakers are worth something, I know you can't believe all spec's but without hearing them that's what you pretty much have to go on..

I was really wanting EV speakers are RCF..not sure about now but before he got this mixer he gave me a price of 150.00 for speakers and 2 stands..

Is it for sure the PMP1000? The specs are in the user's guide. 90 watts per channel @ 8 ohms RMS. Sorry, the REAL specs don't lie!

http://www.behringer.com/assets/PMP1000_P0566_M_EN.pdf

What are you using these speakers for? Home use, or are you hosting shows? They don't really list any meaningful specs, like SPL or THD, and just going by the specs they do list doesn't really tell you anything about quality. I can make a speaker with those specs at home, but it doesn't make them good.

In the end, most people have never heard of them, none of the national retailers carry them, and they seem to be hiding some of the more meaningful specs. All that = suspect speakers in my book.

You get what you pay for in Pro Audio. Any way you look at it, these are budget speakers, and they are going to sound like budget speakers.

If you can save up for some EVs or RCFs, do so, they are going to be much much better quality.

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C Mc
KJ, FL

yes this is the mixer..http://www.sweetwater.com/store/detail/ ... 7AodE0cAOQ
again it read on the back, 150 watts @ 8 ohm...

more then likely me doing a single are maybe a little karaoke in mid to small rooms...100 to 150 people..

a little confused on matching the amp to the speaker, not under powering I understand but at casino's here they run like 20,000 watts...could someone explain that?

That's the thing. Just saying 20,000 watts doesn't mean all that much. The way musicians and karaoke guys talk about wattage, it usually means at a continuous/program rating and an 8 ohm resistance. The way some companies (and maybe the casino) advertise to the unwitted public, they often talk in the minimum resistance they can (2ohms/4ohms) to get the numbers up and more impressive, or use the peak speaker ratings rather than the program speaker ratings, which are more accurate.

Either way, the casino SHOULD be saying that if you add up the continuous/program rating of all of their amps at the rated resistance they are running the speakers, then their entire system puts out 20,000 watts of power.

As a reference, my karaoke system has a total of 2,500 watts of continuous power at 8 ohms. My two FOH speakers are run at an 8 ohm load of 600 watts each, my monitor speaker is run at an 8 ohm load of 500 watts, and my two subs are run at an 8 ohm load of 400 watts each.

That same 2,500 watts @ 8 ohms would be approximately 5,000 watts @ 4 ohms if I could conceivable daisy chain everything, which I can not. 5,000 watts @ 4 ohms and 2,500 watts @ 8 ohms in this scenerio are the same output, and sound the same. Some amps will accept a 2 ohm load, so conceivably, I could even say I have a 10,000 watt system, and just not tell anybody that is the rating at a 2 ohm load. Anyone who knows anything about pro audio, however, would call my system a 2,500 watt system. Behringer might call it a 20,000 watt system, and just leave out that that is the peak rating at 2 ohms, which is ridiculous, but is basically what they do.

AGAIN, no matter what it lists ANYWHERE else, Behringer is required by the FCC to list the TRUE ratings in the specifications at the end of their user's guide, and the PMH1000 is rated to 90 watts continuous @ 8 ohms with both channels driven. The 150 watt number is the PEAK 8 ohm rating, meaning it will handle 150 watts peak per channel @ 8 ohms before distortion, but that still equates to 90 watts continuous, which again is how everyone who knows what those numbers means quotes ratings.

90 watts per channel is not nearly enough for 100-200 people pro shows. The 325 watt speakers, if fully powered, really isn't enough for 100 people. With your stated intended goal of a pro show for 100+ people, I personally wouldn't go any less than 400 watts/channel @ 8 ohms, with matched speakers. 500 watts/channel is really the industry standard, so even 400 will be below average. Save up your $$$ and do it right the first time, and you can ride that gear for a longggg time. The system you are looking at is NOT the answer though. It's low budget, low quality, entry level stuff.

Hope that helps.

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C Mc
KJ, FL

Speakers usually have three ratings. RMS/PROGRAM/PEAK. So say an 8 ohm speaker is rated at 250/500/1000, your amp should be capable of pushing around 500 watts per channel into 8 ohms to give it maximum efficiency and sound quality.
If those speakers you are looking at are rated correct, let's say the 500 watts is it's program power, the amp should be pushing 500 watts per channel as well. That little mixer amp will power them, but to a point where you will need to turn them up, it's going to go beyond the amps capability, resulting in clipping of the amp which send dirty signal to the speaker, resulting in lack of bass, very piercing high end & most likely eventually blowing them out.
Arena PA systems like that at the casino use multiple amps, multiple speakers an usually tri and quad amping on occasion meaning 1 speaker will actually have it's own amp for each driver inside. So maybe an amp pushing 200 watts for the high frequency, a 750 watts for the midrange, a 1000 watt for the mid/low driver & 2000 watts for the sub. So that is 4000 watts to 1 side alone. Multiply that by how many speaker stacks there are and you can easily pump up to 20,000 watts.

My karaoke system puts out close to 2600 watts total. 1000 on the sub, 1000 on the mids & 600 on the highs.

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ty both of you for some great advise, what you both say makes since, I was looking at some used MEYERS speakers but the weight is just to much, I think there 250 watts...again ty a lot both of you..