| Home |
| Search |
| Today's Posts |
|
#1
Posted to rec.audio.pro
|
|||
|
|||
How to test NS10's ?
I've got a pair of NS10 that I bought new about 15 years ago. I
noticed in the past few weeks, that they started sounding a little harsh (distortion) in the high mids. How can I test these? I wonder if it's just the tweeters that are gone or is it the crossovers or what? Appreciate any help anyone can give. Peace L |
|
#2
Posted to rec.audio.pro
|
|||
|
|||
|
How to test NS10's ?
On 29 Apr 2007 16:03:25 -0700, Lukester wrote:
I've got a pair of NS10 that I bought new about 15 years ago. I noticed in the past few weeks, that they started sounding a little harsh (distortion) in the high mids. How can I test these? I wonder if it's just the tweeters that are gone or is it the crossovers or what? Crossovers in these are pretty rugged, but it's possible to test them by measuring voltage across the tweeter while feeding the whole speaker with a constant smallish voltage (maybe a volt or so) at increasing frequencies. The voltage across the tweeter must begin to fall above about 2500 Hertz (give or take a lot) and be reduced by maybe a factor of ten by 20000 Hertz. I'd first do a listening test, playing the speaker(s) with music at normal monitoring volume and listening very close to each driver. This can be done safely by plugging both ears with fingers, moving one ear near each driver and *slightly* loosening finger pressure for that ear. Be safe; your hearing is your best asset; of course you already know that; just being conservative. If the issue is really a damaged driver, you'll hear it. The sound will be buzzy and wrong beyond the ordinary strangeness of a (good) tweeter's sound. All good fortune, Chris Hornbeck "But of course, when you need it, it ain't headroom any more." - Don Pearce |
|
#3
Posted to rec.audio.pro
|
|||
|
|||
|
How to test NS10's ?
I've got a pair of NS-10s I bought new about 15 years ago.
I noticed in the past few weeks, that they started sounding a little harsh (distortion) in the high mids. How can I test these? I wonder if it's just the tweeters that are gone or is it the crossovers or what? Appreciate any help anyone can give. I'm going to ask an unkind question (so when is that new for me?)... Have you abused these speakers? Most speaker problems are caused by playing them at high (ie, ear-splitting) levels for extended periods. Of course, if you've owned them for 15 years and haven't had problems up 'til now, it's unlikely the problem is due to user abuse. Can you tell which driver the distortion is coming from? This sort of distortion is often level-dependent. Does it vary with loudness? Assuming the speakers haven't been abused, it's unlikely both would have failed in the same way at about the same time. So you might want to consider these things... 1. Something else is wrong. Could it be the recording? The amplifier? The CD player (or other program source)? Another pair of known-good speakers would help you decide where the problem is located. 2. The speakers have _always_ sounded like this, but you're just noticing it. (This is possible, but highly unlikely.) 3. Do you have a cat or other animal that might have damaged the speakers? (A friend's cat urinated on his spare panels for an electrostatic system.) |
|
#4
Posted to rec.audio.pro
|
|||
|
|||
|
How to test NS10's ?
Lukester wrote:
I've got a pair of NS10 that I bought new about 15 years ago. I noticed in the past few weeks, that they started sounding a little harsh (distortion) in the high mids. How can I test these? I wonder if it's just the tweeters that are gone or is it the crossovers or what? Appreciate any help anyone can give. You just noticed that they sound a little harsh in the high mids? You have not noticed that this has been going on for years? It's possible you have a tweeter problem, but to be honest, the NS-10 is SUPPOSED to sound like someone is jamming needles into your ears. If it's damage, it will almost certainly be in only one speaker. If it is common to both speakers, it's either an amp issue or (what I suspect) a design problem. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
|
#5
Posted to rec.audio.pro
|
|||
|
|||
|
How to test NS10's ?
Lukester wrote:
I've got a pair of NS10 that I bought new about 15 years ago. I noticed in the past few weeks, that they started sounding a little harsh (distortion) in the high mids. How can I test these? I wonder if it's just the tweeters that are gone or is it the crossovers or what? Appreciate any help anyone can give. Peace L In my experience, the best test for NS10s is to toss them into the Grand Canyon and wait for their report upon landing. It should be much brighter and twisted than the results from an accurate monitor. A friend suggested trying them as doorstops ... if the door stays open, they're functioning as intended. -- ~ Roy "If you notice the sound, it's wrong!" |
|
#7
Posted to rec.audio.pro
|
|||
|
|||
|
How to test NS10's ?
Lukester wrote:
I've got a pair of NS10 that I bought new about 15 years ago. I noticed in the past few weeks, that they started sounding a little harsh (distortion) in the high mids. Only a little ? They must be coming right then. How can I test these? I wonder if it's just the tweeters that are gone or is it the crossovers or what? Appreciate any help anyone can give. Sounds more like they have started working normally ! geoff |
|
#8
Posted to rec.audio.pro
|
|||
|
|||
|
How to test NS10's ?
On May 1, 4:48 pm, "Geoff" wrote:
Lukester wrote: I've got a pair of NS10 that I bought new about 15 years ago. I noticed in the past few weeks, that they started sounding a little harsh (distortion) in the high mids. Only a little ? They must be coming right then. How can I test these? I wonder if it's just the tweeters that are gone or is it the crossovers or what? Appreciate any help anyone can give. Sounds more like they have started working normally ! geoff Thanks for the replies guys.... I had a KEF amp powering the NS10 and it sounded great, but last week one side started getting louder than the other so I hooked up the speakers to a Hafler P7000. (Which sounds like crap compared to the KEF....). and I'm getting this "distortion" from both amps....plus I've got a pair of LSR6332 powered by a Crown K2 and the same source sounds clean through these....so this leads me to believe that the NS10 are screwed OR that both amps are screwed..... I've got an old Yamaha amp I'll try in place of the Hafler to see if this helps..... Also, I can only hear this harshness with voice overs....with full music, I can't really notice it.... I know some people "aren't too fond" of NS10's, but I'm used to them, and I know how they should sound....which is harsh, yes, but not distorted.... PS. How the hell do you get the "subscribe to thread" work on this board??? |
|
#9
Posted to rec.audio.pro
|
|||
|
|||
|
How to test NS10's ?
Lukester wrote:
PS. How the hell do you get the "subscribe to thread" work on this board??? rec.audio.pro is a Usenet forum. If you access it using a real newsreader instead of Google you will have many more options. -- ha Iraq is Arabic for Vietnam |
|
#10
Posted to rec.audio.pro
|
|||
|
|||
|
How to test NS10's ?
Lukester wrote:
I know some people "aren't too fond" of NS10's, but I'm used to them, and I know how they should sound....which is harsh, yes, but not distorted.... Honestly, what you describe is exactly what I have always heard from NS-10s. If you hear it with several different amps, that would indicate it's not the amp. And if you hear it on both speakers, that would indicate it's not a single failure. PS. How the hell do you get the "subscribe to thread" work on this board??? Dunno, but I strongly recommend getting a regular newsreader rather than using the horrible Google groups interface. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
Linear Mode
