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Anonymous Posted on Jul 05, 2018

Panasonic sm-pa53 no power to mid-range/tweeter speakers plz help

5 Related Answers

Anonymous

  • 6966 Answers
  • Posted on Apr 15, 2007

SOURCE: karaoke speaker,no woofer or midrange working, only tweeter

Hi, it's probably that the 8" woofer and the midrange of the "amped" enclosure is open. One way to test is to remove just one wire from the inside of the enclosure to the woofer or midrange in question and with the use of a continuity tester (or a VOM), check for the resistance of the coil of each the 2 speakers. Both should read anywhere from 4-8 ohms, if there's no reading (VOM needle will not move) then the coil(s) are open. In the absence of a tester, a single AAA or AA battery would do (pls. some would argue that this is not a sound practice, however this should be enough for you to be able to determine the condition of the coil(s)). With the use of the battery and a single short length of electrical wire, apply power from the battery to the terminals of the speaker, if the cone moves, then chances are it is good, if they don't then you would have to replace it. Am not sure if available in your area, but there are some trained people who can rewind the coil should a replacement speaker be not readily available. Hope this be of help. Please let us know how things turn up. Regards.

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Anonymous

  • 85 Answers
  • Posted on Feb 22, 2010

SOURCE: only voice from tweeter is coming, nothing from

bhurajiv,
Well it's a good thing that you are getting sound from the tweeter from the speaker cabinet with the problem, that eliminates one of the possible problems; your wires are connected!

If your other speaker sounds fine, the first thing to try is to swap your speaker wires with the one that sounds fine. If the problem speaker cabinet still only produces sound from the tweeter, the problem is within the speaker. If the problem goes away, the problem is from your electronics.

If the problem is within your speaker and it is still under warranty, find a authorized repair location (http://www.cerwinvega.com/service_center.php).

Problems within the speaker can only be one or more of the following: 1) The drivers not producing sound have been blown; played with either too much power and/or distortion. Distortion is created when you play your music too loud with a amp not able to reproduce what you are looking for in sound, the speaker itself can hear it before you can.
2) The speaker cabinet has a crossover inside which directs the proper sounds to the proper driver. This crossover can have components that have been broken be either #1 or from exsessive vibration.
3) There are wires inside of the speaker cabinet that have been disconnected. This can happen over time or if someone reaches inside of the cabinet through the port and pulls on the wires; like a young child or pet such as cats.

If the drivers in question just one day stopped producing sound, start with the easiest solution, #3 then #1 if you can suspect anyone could have played your speakers other than you.

To diagnose the problem, you first start by removing the woofer and confirm that all of the wires are connected and in good condition. While the woofer is removed, to eliminate that there is a problem with the speakers, temporarily connect the mid-range and woofer, one at a time, directly to the wire coming from your electontics, if they produce sound the problem is within the crossover network, if they do not produce sound, the problem is with the driver itself. Replacement parts should only be purchased directly from Cerwin Vega directly (http://www.cerwinvega.com/contact_us.php)

-Chris



Toufic Malek

Toufic Malek

  • 9 Answers
  • Posted on Sep 28, 2007

SOURCE: Speaker act more like tweeter only, not mid range + tweeter

They are mid Hi speakers.1st Open them and check if the mid speakers are ok maybe they are defected or the protection is open. Good Luck Toufic Malek

Anonymous

  • 1 Answer
  • Posted on Feb 11, 2010

SOURCE: Need parts for sansui as-300 speakers

Have spare parts from AS 300 Sansui Speakers. Call me Alan Mertz 941-387-0675

Anonymous

  • 20 Answers
  • Posted on Mar 06, 2010

SOURCE: I have a Cerwin Vega E-315 speaker and the Woofer

Pull speaker so you can get to the terminals in back. Take an ohm meter and check the ohms of speake, a 4ohm speaker could measure up to 5ohms and still be good. If the reading is way off then it is blown. If speaker is good, then check the cross over thats in the speaker, some models put fuses on the units for protection, but mostley on the high frequency of the cross over, not the low.

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1helpful
1answer

Hi,i hear alot about bi wireing could someone explain what it actually is used for and what's it meant to do could I'm thinking bout trying it on my speakers?

It's a big job, but the results are great. Bi amp-ing is where the tweeters and mid range speakers are separated and connected to separate amplifiers. You'll need to have the correct gear before messing inside your speakers. You'll need to have another amplifier. Not knowing what amp you have now, getting a stereo signal into the second amp may be a problem since you'll need a line level signal into the second amp. An external crossover is best. Technically, you could use the ones in the speakers, since you'll be removing them anyway. Now for the speaker mods: On the panel where the posts for the speaker wires are you'll need to install another set of binding posts. We're assuming you have separate subs. Open the speakers and remove the cross over. The wires from the original posts should now connect to the mid range speaker. Add wires from the second set of posts and wire it to the tweeters. Now connect the output of the amp to the removed cross over and wire the mid range out on the cross over to the posts that connect to the mid range speaker. Do the same for the tweeters.If you have three way speakers, you'll have to run a 3rd set of wires from the crossover to the woofers in the cabinet using another set of binding posts. Controlling the volume on the second amp will be difficult since you'll have to adjust it manually. Remote control volume level will be lost on the second amp.
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I put a sub in my 2002 Altima but when I turn it up the bass cracks on the door speakers??? What do I do to get all the bass on the sub

Hi Ethan,

What you're looking for is called a "crossover". A crossover is an electronic filter for an audio or speaker circuit. In an audio circuit, a crossover is used to prevent or pass certain frequencies or a range of frequencies from passing through it. Since your sub will reproduce the bass or low frequencies, you don't want other speakers to reproduce them. A band pass filter on your door speakers will do this for you. A band pass filter passes only a range or "band" of frequencies and blocks those that are above and below the range or band of frequencies selected. Installing a band pass filter will prevent the very high & very low frequencies from getting to the door /dash speakers. Likewise, you should consider connecting a low pass filter to your subs, too. The low pass filters work a little differently from of the way band pass filters work - they only allow low frequencies to get to the sub - blocking all the other higher frequencies (your other speakers are better suited to reproduce those). Lastly, you would install a high pass filters on tweeters. Tweeters are designed to reproduce only the high frequencies - sending mid and low frequencies to them is wasting power and can cause damage to them.

You purchase the filters for specific crossover points (the block / unblocked point) as determined by the individual speakers. If a sub has a frequency response of 20Hz - 100Hz, a low pass filter of 100Hz would be ideal. Remaining filters would need to begin at 100Hz - assuming the mid-range speakers have a frequency response beginning at 100Hz. A band pass filter of 100Hz - 3KHz would fit the bill nicely if the mid-range speakers go up to 3Khz Match the high end of the band pass to the high end of the frequency response of the mid-range speakers. Next, a high pass filter at 3KHz would allow only the high frequencies to your tweeters. Basically, you want to have the entire audible range 20Hz - 20KHz covered by the speakers and have the crossover points that match the frequency response ranges of the speakers.

I hope this helps & good luck!
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1helpful
2answers

I have just bought a technics sc-dv290 hi-fi off of my cousin and found out the mid range and the tweeters have blown does anyone know where i could get replacent tweeters and mid-range speakers for it if...

As you probably know, these are the individual model numbers:

SC-DV290 the base unit
SB-DV290 speaker set

Front SB-DV290
Center SB-PC95
Surround SB-PS95

I'd scour Google or eBay for any or all of those models. Orphan speakers appear periodically.


0helpful
1answer

Only bass driver working on the pair. tweeter and mid range cones not working.

hi,
check the tweeter and mid range. its coil may become faulty.
for checking the speakers carefully remove the speakers one by one, remove its connections.
and check the speakers with a AAA cell. is it producing cracking sound. if not the speakers coils are burned.
ok
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1answer

The tweeter and upper mid-range speaker quit working in one of my JBL s412p speakers. All wires are connected. Would this be a cross-over assembly problem? If so, where can I purchase a replacement?

Remove the speaker wire from your amplifier. Using a 1.5v battery place the wire on both ends of the battery. Observe if you can hear a cracking sound on the tweeter and the mid-range. If there is no sound., your speaker is busted and needs to be rewind or replaced.
1helpful
1answer

Just the tweeter is playing and not the mid

It's a midrange component speaker. Possibly your midrange speaker is blown. Check your wiring.

You hear the tweeters i am assuming because the vehicle has tweeter component speakers that are separate from the midrange and low components.
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How to install 4 way speakers

Exactly the same way, you would for a normal speaker.
Four-ways combine a woofer, a mid-range, a tweeter, and a "super tweeter" into one speaker. But it should still only have one positive and one negative.
1helpful
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Subwoofers not working but tweeter and mid-range do

Try jumping the sub by connecting the speaker cable directly to the speaker , not just the connector on the back
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Speaker act more like tweeter only, not mid range + tweeter

They are mid Hi speakers.1st Open them and check if the mid speakers are ok maybe they are defected or the protection is open. Good Luck Toufic Malek
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