Audio Speaker Driver Replacement
So you decided to fix your old damaged speakers instead of buying or building new loudspeakers; these are some of the things
that you should know about and take into consideration before buying loudspeaker replacement parts.
The best results will be to get the original matching driver that came with your speakers. If the speaker is more than a few years old
finding the exact same driver may be impossible.
When you take apart a loudspeaker to see what is inside it may shock you to see what cheap crappy drivers they actually have used.
Often the components used in mass produced speakers are the cheapest lowest quality drivers and parts that
the manufacturer can get away with that sounds good enough. If the enclosure is of good quality and worthy enough it might be better to upgrade all the drivers including the
crossover network with better components so the loudspeaker may be capable of a wider frequency range with enhanced highs and lows.
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When Replacing The Speaker Drivers Follow The Replace The Speaker Drivers in Pairs Rule
Follow the replace in pairs rule so that both of your loudspeakers will continue to sound identical. When replacing any defective
audio drivers (midrange, tweeters, or woofer) in one loudspeaker do yourself a favour and do the same in the other loudspeaker. If you replace just the blown
woofer on oneloudspeaker without replacing the other loudspeakers woofer, the sound quality of both loudspeakers will suffer. This is because two woofers of different make,
model or age will not sound exactly the same even if the thiele-small parameters do match. The only exception to this rule is if you can get
the exact replacement speaker drivers and your loudspeakers are relatively new.
Speaker driver replacements should be of the same quality and type as the original and the replacements parts should be of the same composition of the
replaced audio driver so that you don't "color" or change the sound of the loudspeaker .So replace a silk tweeter with a silk tweeter
and not a titanium tweeter; if the original woofer has a paper cone replace it with a paper coned woofer and not with a polypropylene coned
woofer.
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When Replacing The Speaker Drivers Match The Original Speakers Drivers Resistance
Another important thing to remember is to get a replacement with the same resistance. If your original audio driver was 8 ohms and you
replace it with one that is rated at 4 ohms your Loudspeaker is going to have some problems. Changing the resistance's of the original
audio drivers will "mess up" the audio crossover network's properties and your Loudspeaker won't work as it was designed. This is because the
crossover networks crossover points will be shifted away from where the designer wanted them to be. This could be very detrimental to the
sound quality of the loudspeaker.
Also pick a replacement speaker driver which closely matches the original speakers Thiele-Small Parameters; unfortunately these values are
often not given or available.
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When Replacing The Speaker Drivers Match The original Drivers Sound Pressure Level (SPL)
It is a representation of the efficiency and loudness that you can expect from a audio speaker relative to the input power. So it should seem
logical to choose a replacement which has the same SPL as the original. This will keep all the audio components (tweeter, midrange and woofer) at
their proper loudness in relation to one another.
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When Replacing The Speaker Drivers Match The original Drivers Frequency Response.
Your replacements speaker drivers must have the same frequency range (or better) than the originals
so that they can handle the frequencies sent to them by the audio crossover network. If you replacements don't match or exceed the original
components frequency response the sound quality of your loudspeakers will suffer. Often some gain can be had by upgrading to better
quality components such as replacing a woofer with one which is capable of lower frequencies or replacing a low quality tweeter with a
high quality one which is capable of higher frequencies than the original.
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When Replacing The Speaker Drivers Match The Speaker To The Enclosure
Every tweeters that I have ever seen are rear sealed so they are not effected by
the volume (size) of the loudspeaker enclosure. All woofers and some midrange audio drivers are not rear sealed so the sound
they produce is heavily influenced by the air volume (size) of the audio enclosure they are installed in. For the best results you must match
your drivers to the audio enclosure they are being installed in.
https://diyaudiospeakers.5150.ca/replacement.html