Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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J.H.
 
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Default Torn speaker

I have a set of logitech x-620 speakers and the bass speaker is torn.
I've read a lot of ways to fix it, but there's 2 things in life I'll
never understand. Refrigerators and speakers. I just don't understand
them. Besides, a patch is only temporary.

Looking online it says it's a four inch, 4 ohm, 24.3 Watt speaker.
Instead of fixing it i'd like to replace it. I browsed through ebay a
little and came up with this:

http://cgi.ebay.ca/ws/eBayISAPI.dll?...MEWA%3AIT&rd=1

Would this work? Not work? Any help is appreciated.
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James Sweet
 
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Default Torn speaker

J.H. wrote:
I have a set of logitech x-620 speakers and the bass speaker is torn.
I've read a lot of ways to fix it, but there's 2 things in life I'll
never understand. Refrigerators and speakers. I just don't understand
them. Besides, a patch is only temporary.

Looking online it says it's a four inch, 4 ohm, 24.3 Watt speaker.
Instead of fixing it i'd like to replace it. I browsed through ebay a
little and came up with this:

http://cgi.ebay.ca/ws/eBayISAPI.dll?...MEWA%3AIT&rd=1


Would this work? Not work? Any help is appreciated.



It'll work, however since it's 8 ohm you'll only get half the rated
power from the amplifier as if you used a 4 ohm speaker. This may or may
not matter depending on the design, but it won't hurt anything either way.


4 ohm is actually more common when it comes to small speakers like that,
anywhere that sells car stereo stuff should have something suitable.

BTW, both refrigerators and speakers are conceptually very simple
devices consisting of only a few major components, there's lots of
information out there for the curious, www.howstuffworks.com is probably
the biggest one stop shop of information of that nature.
  #3   Report Post  
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Kalman Rubinson
 
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Default Torn speaker

On Sun, 19 Feb 2006 21:59:19 GMT, "J.H."
wrote:

I have a set of logitech x-620 speakers and the bass speaker is torn.
I've read a lot of ways to fix it, but there's 2 things in life I'll
never understand. Refrigerators and speakers. I just don't understand
them. Besides, a patch is only temporary.

Looking online it says it's a four inch, 4 ohm, 24.3 Watt speaker.
Instead of fixing it i'd like to replace it. I browsed through ebay a
little and came up with this:

http://cgi.ebay.ca/ws/eBayISAPI.dll?...MEWA%3AIT&rd=1

Would this work? Not work? Any help is appreciated.


Replacement from Logitech. It is doubtful any other will match, if
you care.

Kal

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Travis Jordan
 
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Default Torn speaker

J.H. wrote:
Would this work? Not work? Any help is appreciated.


Try one of these in 4 ohms.
http://www.partsexpress.com/webpage....ctGroup_ID=573


  #5   Report Post  
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J.H.
 
Posts: n/a
Default Torn speaker

James Sweet wrote:

J.H. wrote:

I have a set of logitech x-620 speakers and the bass speaker is torn.
I've read a lot of ways to fix it, but there's 2 things in life I'll
never understand. Refrigerators and speakers. I just don't
understand them. Besides, a patch is only temporary.

Looking online it says it's a four inch, 4 ohm, 24.3 Watt speaker.
Instead of fixing it i'd like to replace it. I browsed through ebay a
little and came up with this:

http://cgi.ebay.ca/ws/eBayISAPI.dll?...MEWA%3AIT&rd=1


Would this work? Not work? Any help is appreciated.




It'll work, however since it's 8 ohm you'll only get half the rated
power from the amplifier as if you used a 4 ohm speaker. This may or may
not matter depending on the design, but it won't hurt anything either way.


4 ohm is actually more common when it comes to small speakers like that,
anywhere that sells car stereo stuff should have something suitable.

BTW, both refrigerators and speakers are conceptually very simple
devices consisting of only a few major components, there's lots of
information out there for the curious, www.howstuffworks.com is probably
the biggest one stop shop of information of that nature.



Half the rated power from the amp? Would be quieter than a 4 ohm
speaker? I'm not looking to gain anything from the sound, I just don't
want this rattling anymore. It's making me crazy! If I can replace the
speaker I'll be happy. I'll take a look around the shops and see what I
can find.

Now what about the magnet? Is that something I should know about?


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J.H.
 
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Default Torn speaker

Kalman Rubinson wrote:

On Sun, 19 Feb 2006 21:59:19 GMT, "J.H."
wrote:


I have a set of logitech x-620 speakers and the bass speaker is torn.
I've read a lot of ways to fix it, but there's 2 things in life I'll
never understand. Refrigerators and speakers. I just don't understand
them. Besides, a patch is only temporary.

Looking online it says it's a four inch, 4 ohm, 24.3 Watt speaker.
Instead of fixing it i'd like to replace it. I browsed through ebay a
little and came up with this:

http://cgi.ebay.ca/ws/eBayISAPI.dll?...MEWA%3AIT&rd=1

Would this work? Not work? Any help is appreciated.



Replacement from Logitech. It is doubtful any other will match, if
you care.

Kal


If I didn't care I wouldn't have tried. But it's out of the support
period. Why do you say it's doubtful any other would match?
  #7   Report Post  
Posted to sci.electronics.repair
Kalman Rubinson
 
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Default Torn speaker

On Mon, 20 Feb 2006 00:11:44 GMT, "J.H."
wrote:

Kalman Rubinson wrote:

On Sun, 19 Feb 2006 21:59:19 GMT, "J.H."
wrote:


I have a set of logitech x-620 speakers and the bass speaker is torn.
I've read a lot of ways to fix it, but there's 2 things in life I'll
never understand. Refrigerators and speakers. I just don't understand
them. Besides, a patch is only temporary.

Looking online it says it's a four inch, 4 ohm, 24.3 Watt speaker.
Instead of fixing it i'd like to replace it. I browsed through ebay a
little and came up with this:

http://cgi.ebay.ca/ws/eBayISAPI.dll?...MEWA%3AIT&rd=1

Would this work? Not work? Any help is appreciated.



Replacement from Logitech. It is doubtful any other will match, if
you care.

Kal


If I didn't care I wouldn't have tried. But it's out of the support
period. Why do you say it's doubtful any other would match?


Because unless you get the identical driver, it will sound different
from the one in the other channel(s).

However, I do not understand why you say the speaker is a 4" speaker.
According to what I Googled, the subwoofer is an 8" driver and the
satellites are 2". So which are you needing?

Frankly, I am skeptical about any replacements on such units since
they are designed as cheaply as possible and as a unit. The little
amps may not be very capable if faced with an unpredicted load.

Kal



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Michael Ware
 
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Default Torn speaker



Half the rated power from the amp? Would be quieter than a 4 ohm
speaker? I'm not looking to gain anything from the sound, I just don't
want this rattling anymore. It's making me crazy! If I can replace the
speaker I'll be happy. I'll take a look around the shops and see what I
can find.

Now what about the magnet? Is that something I should know about?


Being an 8 ohm instead of 4 ohm, you'll get half the current. It may be
quieter than the original, depends on how efficient it is. Keep poking
around, maybe you can find a dead system with good speakers at a yard sale
or something.

The magnet might be bigger than the one on the original, meaning it may not
fit in the enclosure.


  #9   Report Post  
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J.H.
 
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Default Torn speaker

Kalman Rubinson wrote:

On Mon, 20 Feb 2006 00:11:44 GMT, "J.H."
wrote:


Kalman Rubinson wrote:


On Sun, 19 Feb 2006 21:59:19 GMT, "J.H."
wrote:



I have a set of logitech x-620 speakers and the bass speaker is torn.
I've read a lot of ways to fix it, but there's 2 things in life I'll
never understand. Refrigerators and speakers. I just don't understand
them. Besides, a patch is only temporary.

Looking online it says it's a four inch, 4 ohm, 24.3 Watt speaker.
Instead of fixing it i'd like to replace it. I browsed through ebay a
little and came up with this:

http://cgi.ebay.ca/ws/eBayISAPI.dll?...MEWA%3AIT&rd=1

Would this work? Not work? Any help is appreciated.


Replacement from Logitech. It is doubtful any other will match, if
you care.

Kal


If I didn't care I wouldn't have tried. But it's out of the support
period. Why do you say it's doubtful any other would match?



Because unless you get the identical driver, it will sound different
from the one in the other channel(s).

However, I do not understand why you say the speaker is a 4" speaker.
According to what I Googled, the subwoofer is an 8" driver and the
satellites are 2". So which are you needing?

Frankly, I am skeptical about any replacements on such units since
they are designed as cheaply as possible and as a unit. The little
amps may not be very capable if faced with an unpredicted load.

Kal




Actually, the speaker isn't what it seems at all. There's a 4 inch
speaker inside the housing, facing towards the rear. There's a channel
for air coming from the rear to the front and on the front of the
housing there's a soft, flexible, speaker like surface behind the cage.
Meaning it has the foamy edges and flexes when the speaker inside does.

I bought it thinking it was an 8 inch as well.

And it's only the woofer I need to replace, so I'm not concerned about
other channels.

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James Sweet
 
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Default Torn speaker

Kalman Rubinson wrote:
On Mon, 20 Feb 2006 00:11:44 GMT, "J.H."
wrote:

Kalman Rubinson wrote:

On Sun, 19 Feb 2006 21:59:19 GMT, "J.H."
wrote:


I have a set of logitech x-620 speakers and the bass speaker is torn.
I've read a lot of ways to fix it, but there's 2 things in life I'll
never understand. Refrigerators and speakers. I just don't understand
them. Besides, a patch is only temporary.

Looking online it says it's a four inch, 4 ohm, 24.3 Watt speaker.
Instead of fixing it i'd like to replace it. I browsed through ebay a
little and came up with this:

http://cgi.ebay.ca/ws/eBayISAPI.dll?...MEWA%3AIT&rd=1

Would this work? Not work? Any help is appreciated.

Replacement from Logitech. It is doubtful any other will match, if
you care.

Kal

If I didn't care I wouldn't have tried. But it's out of the support
period. Why do you say it's doubtful any other would match?


Because unless you get the identical driver, it will sound different
from the one in the other channel(s).

However, I do not understand why you say the speaker is a 4" speaker.
According to what I Googled, the subwoofer is an 8" driver and the
satellites are 2". So which are you needing?

Frankly, I am skeptical about any replacements on such units since
they are designed as cheaply as possible and as a unit. The little
amps may not be very capable if faced with an unpredicted load.

Kal





I've replaced drivers in cheap computer speaker sets, most of the time
they sounded just the same, in one case there was a noticeable
improvement. There's no voodoo involved, I doubt they even put much if
any thought into the acoustic properties of the enclosures when they
design them in the first place.


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Dave D
 
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Default Torn speaker


"James Sweet" wrote in message
news:E19Kf.30028$6f2.20117@trnddc02...
An 8 ohm speaker has twice the resistance of a 4 ohm, so it will draw half
as much power from the amplifier. This is not a problem, but it limits you
to half power so the max volume will be much lower, it may still be
perfectly adequate though.


There shouldn't be that much difference, remember the ear doesn't perceive
changes in audio levels linearly. The difference will likely mean just
having to turn the volume up a notch to get the same level.

Dave


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James Sweet
 
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Default Torn speaker

Dave D wrote:
"James Sweet" wrote in message
news:E19Kf.30028$6f2.20117@trnddc02...
An 8 ohm speaker has twice the resistance of a 4 ohm, so it will draw half
as much power from the amplifier. This is not a problem, but it limits you
to half power so the max volume will be much lower, it may still be
perfectly adequate though.


There shouldn't be that much difference, remember the ear doesn't perceive
changes in audio levels linearly. The difference will likely mean just
having to turn the volume up a notch to get the same level.

Dave




Yeah it really shouldn't matter, but I figured it was worth mentioning.
If the amp has little headroom it might make a difference, if it's
normally run at relatively low volume it should be fine. 4 ohm speakers
are common enough that it seems worthwhile to try one though.
  #13   Report Post  
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J.H.
 
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Default Torn speaker

James Sweet wrote:
Dave D wrote:

"James Sweet" wrote in message
news:E19Kf.30028$6f2.20117@trnddc02...

An 8 ohm speaker has twice the resistance of a 4 ohm, so it will draw
half as much power from the amplifier. This is not a problem, but it
limits you to half power so the max volume will be much lower, it may
still be perfectly adequate though.



There shouldn't be that much difference, remember the ear doesn't
perceive changes in audio levels linearly. The difference will likely
mean just having to turn the volume up a notch to get the same level.

Dave



Yeah it really shouldn't matter, but I figured it was worth mentioning.
If the amp has little headroom it might make a difference, if it's
normally run at relatively low volume it should be fine. 4 ohm speakers
are common enough that it seems worthwhile to try one though.


I think I'm better off trying to find a 4 ohm, then. I can't imagine
these speaker sets are made with a whole lot of quality, so sticking
with the equivilent of what I started with is probably the best idea.

Thanks for the help.
  #14   Report Post  
Posted to sci.electronics.repair
GregS
 
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Default Torn speaker

In article 14oKf.9226$jh5.6960@edtnps84, "J.H." wrote:
James Sweet wrote:
Dave D wrote:

"James Sweet" wrote in message
news:E19Kf.30028$6f2.20117@trnddc02...

An 8 ohm speaker has twice the resistance of a 4 ohm, so it will draw
half as much power from the amplifier. This is not a problem, but it
limits you to half power so the max volume will be much lower, it may
still be perfectly adequate though.


There shouldn't be that much difference, remember the ear doesn't
perceive changes in audio levels linearly. The difference will likely
mean just having to turn the volume up a notch to get the same level.

Dave



Yeah it really shouldn't matter, but I figured it was worth mentioning.
If the amp has little headroom it might make a difference, if it's
normally run at relatively low volume it should be fine. 4 ohm speakers
are common enough that it seems worthwhile to try one though.


I think I'm better off trying to find a 4 ohm, then. I can't imagine
these speaker sets are made with a whole lot of quality, so sticking
with the equivilent of what I started with is probably the best idea.

Thanks for the help.


A slight tear can be fixed. Try fixing first. You can very well get a more
efficient 8 ohm driver than some typical 4 ohm. The power is trivial.
Stronger magnets make more efficient drivers. 4 Ohm speakers
are common for cars. Look in Parts Express, MCM, Crutchfield, etc.
Also, the new driver may not match the enclosure volume or type, etc.

greg
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Dave D
 
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Default Torn speaker


"J.H." wrote in message
news:jp8Kf.8546$jh5.2708@edtnps84...
Kalman Rubinson wrote:


Actually, the speaker isn't what it seems at all. There's a 4 inch
speaker inside the housing, facing towards the rear. There's a channel
for air coming from the rear to the front and on the front of the housing
there's a soft, flexible, speaker like surface behind the cage. Meaning it
has the foamy edges and flexes when the speaker inside does.


That sounds like a 'passive woofer',- a speaker without its own voice coil
driven by the air pressure from an active woofer.

Dave


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