Question about Peavey New Peavey Sp3 15" 3 Way PA Speaker

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I have the old 3way 600 watt pa speakers x 2,which amp would you suggest, for this speakers.Because I m having trouble with my amps,that keep on clipping and burning out.

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DO NOT run amps into clipping. Also, while the speakers are rated at 600 Watts, you don't want to use an amp that delivers that much RMS. Use about 300 Watts per side. Unfortunately you did not mention the brand of amps you are using. I will also caution you that the speakers have protection networks that if you are getting supersonic feedback that you can't hear that can burn out the amps. DO NOT boost the highs if the mics can "hear" the speakers or the reverberations from them. Solid connection of speaker cables is important. Intermittent connections can fry amplifiers... I won't go into the technical reason for this other than to say the amp's feedback circutis get confused when the load shifts.

You might also have the speakers checked since they can have an intermittent that is popping the amps. If you happen to be using BERHINGER PMP amps, please read my tip about the grounding hazard where the sleeve of channel A is hot and the tip the cold that I have in the Fixya tips.

Posted on Mar 25, 2011

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We heard a loud pop... then saw a flash of light set off by the internal speakers. What causes this? Are these speakers out of phase? What's causes this?


These are rated peak 600 Watts... your amp should NOT be bigger than 200 Watts RMS per speaker cabinet driving these to prevent burning out the speakers. The pop MAY have driven the speakers to full excursion and temporarily shorted the speaker voice coil. Test the DC resistance of the speaker... if you find it is under about 3.7 ohms you have damaged the speakers and continued use may damage your amplifier.. Often people will unplug a guitar cable causing a loud pop in the PA system and that CAN damage the speakers if the amp is too big.

Aug 16, 2011 | Kustom KSC215H PA Cabinet

1 Answer

What type of amp do I need for apair of rfdj1 12" dj 600w band speakers?


The 600 watt rating is FAKE like most of our advertising and will be either 600 watts PEAK or 600 watts PROGRAM. If it is Peak, use an amplifier with no more than 100 watts a side RMS... If it is program rating use an amp with no more than 150 watts a side RMS but that is pushing it for speaker safety. Also pay attention to the spec of the amp as to what it will output at the impedance of the speakers. I read the spec on the speakers... they are rated 150 watts RMS, NOT 600 watts... Use an amp rated at 150 watts RMS MAXIMUM at 4 ohms per side. Also don't turn up the bass excessively or you be buying new speakers. Twelve inch speakers would be adequate for a 20 by 20 room at SAFE listening levels. If you want driving bass, you need to get an 18 inch subwoofer.

Jul 14, 2011 | Rockford Fosgate Rfdj1 12" 2-way Passive...

1 Answer

Brand New Ampeg Ba 600 210. Only Used durin 2 shows. Sound is awesome. Go to use it this weekend and absolutely no sound at all coming through the speakers. Compression, eq and Everything else working when...


Another person posting on here I suggested opening his unit and he had blown speakers. I think these that are DOA after previous use may be blown during the previous shutdown of the amp driving them and those with built in amps are blown when mixer is powered down putting out a large pulse. Hopefull the amp is blown rather than the speakers... cheaper to repair. Open and check for a fuse, but dont' replace it until you find out the cause of it blowing as additional damage can occur.

May 15, 2011 | Ampeg BA600-210 Bass Combo (with )

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My 200hd head is not putting out the full 200 watts i have a behringer 8x10 cab and before this head used to power this cab fine now even with the volume cranked you cant even feel the bass i have...


I am not sure how you are measuring the power output to verify it is less than 200 watts. With a true RMS voltmeter you should see 28.28 volts RMS across a net speaker load of 4 ohms. If you use only one 8 ohm speaker, you will get 120 watts. If you are getting the 28 volts there is nothing wrong with the amp. You MAY have blown the speakers OR not generating much bass due to processing in an EQ. I assume you are using at least 15 inch speakers if you want to feel bass. Look up your speakers specs... you will need speakers capable of 32 Hz to feel much. With this amp your speakers should have aa total rating not less than 400 to 600 peak watts or around 300 watts RMS continuous power rating. Using a lot of high end EQ will keep the amp busy at the high end and reduce the power available at the bass end.

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So the wattage of the is 32 watts and voltage is 12.8v. is it?


This makes no sense... 32 Watts and 12.8 volts... something to do with this speaker that is rated at 500 Watts???

If you are trying to calculate something for a car amp you don't understand how they work... that is the only thing I can think given the 12.8 volt thing you stated. Most high power car amps BOOST the incoming battery voltage up with a switching power supply. For instance, they might boost to 48 volts and that applied to a 4 ohm speaker would be 12 amps PEAK maximums. BUT the RMS power is one half that or about 288 Watts in round figures before considering losses.

Many car amps are designed to run with 2 ohm speakers... JUST SO THEY CAN CLAIM massive power values in their ads so you will buy them!

Jan 21, 2011 | Peavey SP2 PA Passive Speaker

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I have been using two Peavey Pro 15 Mk ii 300 Watt Passive 15" Speakers with two additional speakers on the output side and i notice one of the peavey speakes wasnt working! i then realised i had the...


Passive speakers with 1/4 inch jacks do not define either as input as they are wired in parallel...

Assuming the speakers you added were each no less than 8 ohms this should NOT have overloaded your amp.If you have no sound you have probably blown your amp some way.

Note some amps can be blown if they are on and EITHER side of the speaker cable touches a ground. If the amp is running and a 1/4 inch plug is pulled, it shorts and can blow the amp.

Jan 17, 2011 | Peavey PR15 400w PA Speakers

1 Answer

JBL JRX115 producing very muffled sound even though graphics on mixer at normally used settings. Someone suggested we may have "popped" the horns. Is this potentially the problem. We have been running...


The speakers are rated 250 Watts. Driving with 600 Watt amps requires one to be careful of how much the volume is turned up to avoid damage. You MAY have damaged more than just the compression drivers on the horns but the voice coils on the 15 inch speakers as well. Further use could also damage the amplifiers. You did not mention what brand amps and it is possible they have a problem.

You best replace the units with ones rated for the power of the amps as restoring them on short notice for a gig is not practical.

Sep 12, 2010 | JBL Music

1 Answer

I have a Crate PA-8 4 ohm 150 watt PA head that I run to four Peavy 10" PA speakers (two per side in series). It was very good, clean sound, but the speakers were cheap and may have been pushed too hard -...


150 watts should be easily handled by four Peavey speakers in the connection you described.. If the Peavey's are 8 ohms, then your total load was 8 ohms for the series/parallel arrangement which is well within the 2 ohm drive capability of the Crate according to specs.

I question if you really mean the speakers were in series? This requires a special cable to do this. Now if you mean they were "daisy chained" like the amp went to one speaker and another cable connected that speaker to another, then you REALLY had ALL speakers in parallel electrically which would be at the 2 ohm low limit of the amp... In either case, with only 1/4 of the 150 Watts to each, the speakers should NOT have been damaged. The amp MAY have been damaged. Try each speaker individually at a REASONABLE level to test.

If you plug into the effects loop out jack,OFTEN the connection to the internal power amp is broken so you might have to arrange a special cable as a wye to go back into the power amp as well as your external amp. In any case pwere ALL interconnected amps, etc from the same power source/receptacle for system safety.

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1 Answer

I have a crate PA 8 and it makes a crackling noise when I play through it. I hooked the speakers to my other amp and they sound good, I hooked the PA to my marshall cab and it still has the noise, so I...


Hi

The problem is with the amplifier itself. Crackling is usually capacitor related and you will need to have the amp checked over to properly identify the cause.

Some amps are also prone to pick up static from other electrical items which can also cause these problems. I had a crackling issue with an old Crate amp of mine which turned out it was due to being too near a computer/monitor so it is worth eliminating these things as a possible cause before having the amp checked.

Hope this helps. Thanks for using FixYa.

Oct 28, 2009 | Crate FlexWave FW15 Guitar Amp Combo, 15...

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