Question about Yamaha SW118-IV 18" Subwoofer Speaker

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Blown 18' need specs on replacement 18' speaker

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Sherwood r525 repair

You need to look at the devices on the heat sink. They will probably need replacing. You can check (if they are transistors) with an ohm meter if they are working. Connecting it accross the terminals of each device will probably show a short circuit. Just like if you had touched the probes together. If so there will be some blown fuses somewhere.

Feb 25, 2013 | Audio Players & Recorders

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No sound thru horn.

Either components in the SoundGard circuit are blown or the horn driver... VERY SLIGHT chance wires have become disconnected. Open unit an inspect. Use ohmmeter to check the polyfuse and the lamp for open circuit indicating they are blown. Your amplifier should be rated at NO MORE than 150 Watts RMS continuous for safety of the horn. Speaker ratings are based on advertising... so don't believe the specs on power handling... If you dig into the specs you will find for the horn a max of 150 Watts continuous.

Aug 08, 2011 | Peavey New Peavey Sp3 15" 3 Way PA Speaker

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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...

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Both 8 amp fuses blown

Disconnect the speakers and replace the fuses with the proper specs ONE time and hope. Amps only have so many lives. If it blows them again take it to a tech to get fixed.

Otherwise, if it survived evaluate what you know about the event that blew the fuses and try not to repeat it.

Attach ONE speaker to one channel and see how that works out; then the other. You may have just blown the speakers or they may cause the fuses to blow again.

Jan 16, 2011 | Sony STR-DE825 Receiver

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Brand new speakers sound blown

it sounds like your problem is bad speakers. I dont think you are under powered. You probley need to take these speaker back if possible. sometimes you will get a faulty speaker, where the wire is glued to cone, the wires are probley not making a good connection. from factory they do screw up. I have had the same problem, it is not noticable by the eye but it does happen. good luck .

Jun 27, 2010 | Alpine SPS-500 Coaxial Car Speaker

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Jamo Cornet 90IV

not sure what size you need but dayton audio subs are pretty killer check them our parts express usa, i a have a set of realistic mach ones with one of my drivers blown i did some searching and found parts express, due to rave reviews and the specs on what i look for in subs dayton is the way to go,happy hunting-z

Jan 10, 2009 | Jamo A4SUB Car Speaker

2 Answers

Voltage adapter

NO, it is very under rated and powered. You need an 18 volt and not a 12 VOLT. They should not be that hard to find in an electronics store. Also the amp rating is also important. Make sure you are matching both amps and volts AC or DC to the the label on the woofer or you could end up blowing the out.

Sep 24, 2008 | Altec Lansing AVS 300 Computer Speakers

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