Question about Earthquake Sound IW-803 Main / Stereo Speaker

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Iw-803 earthquake sound in wall speaker throws amp into protection mode at high volume.. removed all speaker components ( woofer, mid, tweet) and just hooked up crossover - still shots at high volume....

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Many amplifiers protect against a short and against an open. They are looking for speaker resistance within limits. Your wire to the speaker may be too long or too thin. You may have hooked up more than 1 speaker per output causing too low resistance. Keep your wires short as possible and use 12 or larger gauge wire if you are driving large wattage speakers. Check the ohm rating on your speakers and compare them with what the amplifier calls for. Hope this helps

Posted on Jan 03, 2011

  • mpegcto Jan 03, 2011

    system been running for years - just started and i removed speakers and connected crossover directly to amp - but good point i should load the xover to make sure...

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Posted on Jan 02, 2017

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1 Answer

I have alpine sps600c & am installing them in a 2001 Nissan frontier w/ 6 disc 6 speaker (2 ea in each ront door, 2 in back (crew cab). Do I wire my tweeters to existing tweeter output, or...


Did you change out the factory deck? If not, wire the tweets to the existing wiring. If you already have tweets they have been crossedover already. However, if you replaced the deck, you may need to run new wire to the doors and use the crossover that came with your component set. Hope this helps

Sep 05, 2011 | Alpine SPS-600C Car Component System

1 Answer

Stuck in protect mode. reset not fixing it


look for crosses/shorted speaker wires, particyularly, look for loose strands at the ends of the speaker cables to ensure that they are not crossed and shorting the amp out.

if the cables are fine, then check the speakers to see if they are blown. you should be able to gently push the cone of the woofer(s) (the biggest, bass speakers) in gently with your hand for about an inch, with no resistance, before it bottoms out. if there is any resistance while the cone is moving downward, like a scratching or a rubbing inside the speaker, then your vioce coils are fried, causing a short circuit and throwing off the "protect" light.

to test the tweeters (smaller, high frequency speakers) for damage to the voice coils, disconnect them completely from the rest of the speaker, and see if that doesnt cause "protect" to go off. you can also push in on tweeters, but they wont "give" as much as woofers, making it hard to tell if there is any resistance going on inside.

if the problem is not with the speaker wiring or the speakers themselves, then the amp is broken.

Nov 25, 2010 | Kenwood KDC-MP242

1 Answer

My Yamaha SW118 keeps cutting out (volume reduces to v low level) even when driven by 500W amp. Doesn't seem to be the amp but not sure if the speaker has it's own internal protection. Can anyone advise?


Poly Switch
All full-range loudspeakers are fitted with a self-resetting
poly switch that protects the high-frequency driver from
damage caused by excessive power.
If a loudspeaker cabinet loses high-frequency output, immediately
remove power from the unit and wait for two to three
minutes. They should allow the poly switch to reset. Reapply
power and check the performance of the high-frequency
driver before continuing with the power reduced to a
level that does not cause the poly switch to interrupt the signal.
On the SW115V/SW118V/SW218V sub woofer, the Poly
Switch protects the woofer and a similar routine should be
followed if its output is lost.

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3 Answers

My nitro bmw-486 amp is in protect mode how can I


Disconnect all speaker connections and rca cables. Leave power, ground and remote wires intact. Try turning on again. If you still have a protection light your amp is faulty. Hopefully you have warranty De .A thumbs up would be greatly appreciated if this answer is helpful to you. nitro-bmw-486-amp-in-protect-mode-lv2kkrmxrai4iihdvw4m3np2-1-0.jpg

Feb 24, 2010 | Nitro BMW-486 Car Audio Amplifier

2 Answers

By attaching amplifier with speakers and dont attach woofer there is increase in volume or not? my audiio system model no. KDR-506AND MY SPEAKER MODEL NO. 6922


No, it night seem like it because there will not be any low fequency noise from the sub to match. But, if your bass overpowers the rest of the sound you will need to put an external amp to your mids/tweets

Jan 29, 2010 | JVC AM FM CD DET FACE CAR STEREO

1 Answer

How to wire a sony 1200 watt amp


I believe what your trying to do is to run 2 12" subs and some other satillite speakers? We used to do that all the time.. That is called running the amp in "mixed mono" that's where the mids & tweets are run in stereo while the subs are bridged mono. This configuration is what made Rockford Fosgate "The Bomb" back in the day. To do what you want your subs have got to be 8 ohms, NOT 4, Dual Voice Coil 4 ohms would be OK. Before i tell you how it can be done let me tell you what will happen... For one thing you will be "making" your own cross overs for the subs and mids and tweets. Forget about using the cross overs on the amp. 2ndly you will lose about 1/3 to 1/2 of the amps power because the crossovers are so inefficient, so don't even think your going to get anywhere near 1200 watts from the amp. More like 300, and that's on a good day. But if you still want to do it you go to your Radio Shack and get 1ea 6.0 mHy (milhenry) coil and two 47 mfd (microfared) capacitors, or something close to that value. So you would wire your mids & tweets normal in stereo and on the + line to each mid wire in the 47 mfd capacitor. That is your h/p crossover which will crossover your mids @ appx 130hz. Now on your subs. You want to wire them in parellel (both +s twisted together and both -s twisted together so it looks like there is just one woofer with a + and a -) Than from the L+ of the amp run a wire to the coil and from the coil to the + of the woofers, than using the R- of the amp to the -s of the woofers. Do not use any of the amps built in crossovers leave it on full. Good luck. Mark @ Sounds Good to Me Tempe, AZ

Aug 25, 2009 | Car Audio & Video

1 Answer

Need help


Have you connected an extra pair of speakers?. (Thereby loading the amp stage beyond it's capacity)
Are the speakers connected to the unit the original ones the system came with or different? ( Speaker impedance, usually displayed at the back of the speaker cabinet must not be less than amp's specifications....6 ohms, 8 ohms)
If you're driving the unit excessively you're lucky this piece is equipped with protect mode, else your speakers and amp would have been fried by now.
One last possibility comes to mind: High volume causes vibration causing loosely fitted mains plug to rattle in wall socket calling "protect" due to improper feed voltage. Move the unit to another wall socket and ensure a tight fit into mains receptacle.

May 20, 2008 | Sony STR-DE197 Receiver

1 Answer

Car speaker installation


Yes... for sure you can use the woofers wiring, BUT if you are keeping the factory radio you might have reduced volume and or quality due to the inefficency of some newer model higher power needing components... let us know if you are amping or not, and if not.. try and do so..

May 19, 2008 | Audio Pro 15PLB76 15 Inch 800 Watt Woofer...

2 Answers

Bass sounds flat when volume is increased


probably your power is too short, increase your gauge wire, and your ground wire of the amplifier has to be shortly as possible, and the positive has to be enough to support peak power, you can also put a big capacitor on the positive wire to give some more power while the bass peak.

Apr 26, 2008 | Earthquake Sound PH-D2 Car Audio Amplifier

1 Answer

Bi-amp


After examining a picture of a 5802 ( I have been servicing adcom for over 20 years ), these are not bi amp posts, but bi wire posts.

Bi-amp means that 2 amps are being used, one for highs, one for lows. This means that you have no crossovers in the speakers, instead, you have an electronic crossover between the amps and the pre-amp. The highs and lows are separated in the electronic crossover. One amp handles the lows, one handles the highs.

Bi-wire means that you have the crossovers still inside the speakers. The amp handles the full range of music ( highs-mids-lows ). Different kinds of speaker wire produce different results. If you have bi-Wire terminals on your speaker, they come with shorting wires, that tie the tweeter + to the woofer + on the back of the speaker, and the tweeter - to the woofer - . When the shorting wires are removed completely, you have now electrically separated the tweeter and woofer from each other, while maintinaing the crossovers ( inside the speaker ) for each.When this is done, you can now bi-wire the speakers and amp, and use different kinds of wire for the lower frequencies and the upper frequencies, depending on your ears ( everyone hears a little differently, thats why there are so may makers of components, and wire ).

Why do we have crossovers?.....the tweeter voice coils ( the things that make the sound ) are made of hair thin wire. This wire cannot handle much power and if you were to put bass in to a tweeter, you would burn the tweeter out almost instantly. A tweeter is a very light, fast moving device which can react very quickly to high frequency sounds ( symbols, triangles, guitar strings....). Woofers are more rugged. They have voice coils made of heavier wire and are designed for larger movements that Bass demands. Subsequently, woofers aren't very good for high frequencies because they are slower devices.

So what do we do ?.....Keep the lows away from the tweter and the highs away from the woofer.....thats the job of the crossover.

In the event that your speaker has the crossover OUTSIDE the speaker box, you should check ( as always ) with the manufacturer of the speaker to see how it can be changed to suit your needs. Remember to always read and follow your owners manual. Good luck....Rob

Feb 22, 2008 | Audio Players & Recorders

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