Question about Yamaha S115V Club V - PA Loudspeaker - 250W

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No high end

Horn no sound but voice coil good

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Car horn not working


as with all elect. fails check all fuses
in this case the 15 amp fuse marked, HORN
can i presume all else works good> car drives.?
all answers, USA spec car. nobody ever tells location, so..... if not USA< all answers wrong. the usa car has just 1 horn.....
got voltage to horn? 12v
Yes or no.?
if yes horn bad.
got voltage from horn relay
yes, bad wires.from, relay to horn
no, got voltage 12v to horn relay coil,
yes, good, no bad fuse.
got 0v to other relay coil (all tests honking)
yes, bad relay.
no, bad horns switch.

if you want me to guess. sure.
1: bad wires ../connections, end to end.
2 bad horn
3: bad relay
4: bad horn switch.

Dec 27, 2013 | 2005 Toyota ECHO

1 Answer

Zxr750l no spark at plugs but have power to coils. kill switch ok, coils ok. have checked side stand switch, fuses good. any help please.


You say you proved power to the coil but there is no spark at the end of the spark plug wire ... have you checked that spark plug wire? Could be very high resistance or open ...

Feb 24, 2013 | Motorcycles

1 Answer

Can i wire 1 channel to each voice coil on my **** with 2 cables?


Not recommended, if you have a 2 Ohm DVC this will give you a result of 4 ohms, You are better off Wiring AMP (-) to (-) on one VC then another wire from (+) on same VC to (-) on other VC and then (+) on other VC to (+) on AMP, this will get you the same result. You run a high risk of burning the Voice Coils if you wire up the way you speak of.

Mar 11, 2012 | Power Acoustik MOFO-12 Car Subwoofer

1 Answer

I have a subwoofer in my truck. 2 speakers in a box with an amp. One of the subs blew to a song that just came on. the volume was high. Sounds distorted. Any way to fix?


Sounds like the voice coil of that woofer overheated and melted while it was turned up too far. Now that area rubs on the magnet or pole piece internally and makes noise.

No you generally can't fix that except for a few high end woofer brands that have field replaceable voice coils that you can buy. Most subwoofers physically bottom out and sounds really bad before experiencing thermal damage like that. Sounding bad is a warning sign that it's being overloaded.

Note that woofers have 2 different types of overload conditions that can cause damage.
1. Over excursion from deep bass that moves the woofer cone too far and damages the suspension. This is clearly audible. Proper box design and user knowledge will prevent this.

2. Thermal limit. This is the published power rating that the voice coil can absorb without damage. Things can melt or fail entirely if this is exceeded.

Either of those issues can cause the noise you are hearing. Without a more detailed description of what happened or how it sounds before, during and after this is much detail as I can provide. But.. move the woofer some by hand, do it evenly pushing straight down evenly on both sides, not too far, go about half way through it's normal movement. If it clearly rubs and makes noise internally then the voice coil is damaged or if has some debris stuck in there. Most woofer are not serviceable.

There are many other factors that affect the longevity of the woofer, such as
  • Ambient temperature too high
  • Limited air flow has inadequate woofer cooling
  • UV exposure can make the surround material brittle
  • Proper enclosure design is needed to acoustically and physically supports the woofer to prevent bottoming out, particularly at the system resonant frequency.
  • Amplifier distortion can kill speakers even when rated far below the woofers max wattage.


Nov 28, 2010 | Sony XS-AW200 Car Subwoofer

1 Answer

I bought a Behringer Eurolive B1220 Pro speaker with my PA system brand new and it sounded great at first. Now it sounds really muddy (the other 2 speakers I bought work fine) almost as if the horn has...


Bad news...you've blown the tweeters. Overdriving the mixer/amp creates distortion on the amplifier which heats up the speaker voice coils and eventually causes damage. Because of their small diameter voice coil windings the tweeters fail first (opens up like a fuse element does) followed by the woofer making a scraping sound (deformed voice coil) or not working as well. Warranty service because you blew out the tweeters? Don't get your hopes up.

1. PLEASE use enough power for the venue that you have. A high powered system will run all night at 10:00 (physical volume knob setting) than an underpowered system set for 2:00.

2. Get speakers off the ground and closer to your audience's ears. Audio from speakers on the floor must battle surfaces that actually absorb some of the sound....carpet, drapes, etc. And besides, legs can't hear that well.

Nov 05, 2010 | Behringer B1520 Pro Eurolive 15" 2-Way...

1 Answer

Would a Pyramid 15" subwoofer work for my Yamaha synthasiser?


Do yourself a favor do not get anything Pyramid they are cheap for a reason and you will not get good bass response from them even in a optimal enclosure.If you want nice bass for little money go with lanzar opti 1535D sub you can pick one up for around $265 and will blow away Pyramid any day.

http://review.zdnet.com/product/subwoofers/lanzar-opti-drive-opti1535d-car-subwoofer-driver/33649420

  • Custom Tooled Die-Cast Aluminum Basket
  • COC Composite Cone
  • Jumbo Dense Foam Surround
  • 3’’ High Temperature Dual 1.2 Ohm Voice Coil
  • 100 Oz x 3 High Density Barium Ferrite Magnet
  • Power Handling: 1600 Watts RMS /3200 Watts Peak
  • Frequency Response: 30 - 500 Hz
  • Impedance: Dual 1.2 Ohm Voice Coil
  • Efficiency: 88dB
  • Includes Installation Hardware and Template
  • Packaged In a Wood

  • lanzar-opti1535d.9909657.jpg lanzar-opti1535d.3004946.jpg lanzar-opti1535d.9909658.jpg lanzar-opti1535d.1054589.jpg lanzar-opti1535d.1785277.jpg lanzar-opti1535d.9909656.jpg default.jpg

    Apr 18, 2010 | Audio Pro 15PLB76 15 Inch 800 Watt Woofer...

    2 Answers

    Behringer 212A, lost its highs, is there a way to test the horn vs the driver circuit? = Duane


    Hi duane
    To answer your question;
    Usually you would use an ohm/impedance meter or multimeter to test the voice coil right at the horn`s terminals then with the crossover network connected you would go down the line all to the speaker box terminals to check for an open line.
    But if you don`t have a multimeter you can rig a small AAA battery with two wires connected and listen for a "click" sound as you touch and release the horns terminals.
    Of course this would only tell you if you have an open voice coil but it is often enough.
    Hope this help Good luck

    Apr 01, 2010 | Behringer Eurolive B212A Speaker

    1 Answer

    I have a set of JBL JRX125 (s) and the high end won't work on them. Not sure if I blew a fuse or the cone or what. The only audio I can get to come through them is low end.


    Hi hoit

    They will have either blown high frequency compression driver, or the lamp mounted to the crossover board has failed. Best way to check is pull the horn flare out of the speaker box, and check the voice coil of the HF driver(JBL2412). I think they are 8 ohms from memory. If they are shorted, or more likely open circuit then this is you problem. If they appear ok, then check the lamps. The lamps are there to protect the horns from being overdriven, odd lucks means I have seen it work the other way.
    If the JBL part is too pricey for you (they are for me), you can get aftermarket replacements from many places for about $40 each. It is a replacement diaphragm that you need for each HF driver.

    I am more than happy to answer any other questions you may have about it, please get back to me here, or use the ASK function to go straight to me :) If you are still unsure, have problems, or we need to look at the situation more deeply, then before you give a rating for this advice, hit the ASK button Thanks for using FixYa, If you consider the advice I have given you as sound, a FixYa rating is a great reward for my efforts to help you. Cheers.

    regards
    robotek

    Jul 07, 2008 | Audio Players & Recorders

    1 Answer

    PEAVEY djs4 speaker QUESTION


    If a speaker is "blown", there is normally an open-circuit in the voice coil, therefore it emits no sound at all. Can't discount a loose wire, but blown HF drivers are very common.

    Dec 31, 2007 | Audio Players & Recorders

    1 Answer

    Cerwin Vega V-10S Subwoofer doesn´t sounds good


    dear "rai17"

    This, to me, is most likely the voice coil inside the driver rubbung against the yolk plate, or possibly the spyder slapping the metal plate underneath it, or the amp-(if it has one?) getting tired. this can occur from poor build quality, or playing the subwoofer too loud. depending on how much it cost you, you may want to get it repaired(voice coil re-alignment or something or new amp). But the way it seems, it is probably the driver itself. subwoofers get looser as they break in. This one may have been over-broken....sorry

    I hope this helped clarify what is happening!

    Oct 09, 2007 | Cerwin Vega V-10S Subwoofer

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