View Full Version : Yamaha NS 690, 690II, 690 III, 670, what's the difference?


lordfoo
09-11-2005, 08:37 AM
What's the difference between the Yamaha Ns690 and the Yamaha NS670?
How does the 690 compare with the ns500?

Is this sequence correct?

NS1000m best.

Ns690 better (also NS670)

NS500 good

Cichocki
09-11-2005, 09:55 AM
Well, I'm not exactly sure of all the differences of the 690 series, but the 670 is very similar. I have the first NS-690s, which are identifiable by the multi-amp input block on the back, and the small mesh screen in the center of the woofer dust cap. I also have the NS-500Ms, which are different from the NS-500 in that they have a titanium-carbide mid, that for all intents and purposes, is nearly indistinguishable from the Be mid of the NS-1000. All three have a Be tweeter.

So, my order would be:

NS-1000 / NS-1000M
NS-500M
NS-500
NS-690/670

-Brian

hoahao
09-11-2005, 10:39 AM
690: 300mm woofer, 75mm midrange, 30mm tweet, 45-20K +- 3db, 48 pounds, 96db/1m 4 watts

670: 250mm woofer, 60mm midrange, 30mm tweet, 50-20k +- 3db, 42 pounds, 96db/1m 6.3 watts

lordfoo
09-22-2005, 10:42 PM
What about the NS10M? The NS200M? How are they related to the NS500M and the NS1000M?

I saw an NS200m in a shop. The NS200M looks like a smaller NS500M. I didn't audtion it though. Does it approximate the quality of the NS690 and the NS1000m both of which i have? I've also seen an NS500m in the same shop. I didnt audition it also and its gone now. But I have a shot at the NS200m.

krimney
09-23-2005, 11:10 AM
My 690, which I think are version 1, have a fabric woofer surround. the later series have foam surrounds. i don't recall a mesh screen on my woofers either. My 690 do not have bi-wirebale terminals on the back. They are close in size to my NS-1000M, not quite as heavy . My 690 have a nice stained wood finish and the 1000M are black. The 690 are not mirror imaged, the 1000M are. For the most part the 690 sound very similiar to the 1000M. I have had a set of 10M and I don't think they are in the same league as either the 690, or 670. If you can find a set of 690 for a couple hundred or less I think they are a better bang for the buck speaker than the 1000M, and they look nicer too. that said , my main speakers are 1000M and I can find nothing they lack in. I also have a set of NS-625 which are a two way with 6-8 inch woofer and dome tweeter. Better bass than the 10M with a richer sound and nicer looking cabinet.

Yamaha B-2
09-23-2005, 04:37 PM
I also have the NS-500Ms, which are different from the NS-500 in that they have a titanium-carbide mid, that for all intents and purposes, is nearly indistinguishable from the Be mid of the NS-1000. All three have a Be tweeter.
So, my order would be:
NS-1000 / NS-1000M
NS-500M
NS-500
NS-690/670
-Brian
Hi Brian - Any chance you can post a pic of your NS-500Ms. I am not familiar with them and would like to see same, having a set of the NS-1000M and a set of NS-500s.

Also, could the NS-690 be described as a NS-1000M with soft domes rather than Be? Am sure there is much more to it than that, but not too bad a description based on size.

hoahao
09-23-2005, 10:10 PM
"Also, could the NS-690 be described as a NS-1000M with soft domes rather than Be? Am sure there is much more to it than that, but not too bad a description based on size."

Thats pretty much how I saw it when I bought my 690's 28 years ago. I A/B'ed them with the 1000's. There was a difference in sound, but not much. The Be tweets and mid range were the difference, but the sound improvement margin Vs the price difference kept me with the 690's.

rustyns
09-27-2005, 12:31 PM
Here's a nice link

yamaha speaker web page (http://babelfish.altavista.com/babelfish/trurl_pagecontent?lp=ja_en&trurl=http%3a%2f%2fwww11.plala.or.jp%2fse_ke5583%2 fYAMAHA%2fspeaker%2f)

bolly
09-27-2005, 12:35 PM
great yamaha link rustyns!

krimney
09-27-2005, 04:08 PM
they do indeed have a small screen in the center of the dust cap. gotta let the heat out I guess.

Yamaha B-2
09-27-2005, 04:21 PM
Rustyns - Many thanks!! :yes:

Couldn't get a few of the individual shots to open (Babelfish translation errors), but most did. The most interesting to me are the high and mid drivers on the NS-2000. The seller of same on eBay (from the UK) has been listing them as being considerably upgraded from the NS-1000 drivers. They didn't look that way to me and this shows them as being the same. If you haven't heard a nice Yamaha Be driver rig you will be amazed at how electrostatically clear and crisp the highs/mids are. Without question the best I've listened to. :thmbsp:

krimney
09-27-2005, 05:32 PM
The NS690 list a freq response down to 35 where as the ns-1000M only go to 40hz. Wonder what you'd get if you put the BE mid and tweet into a 690 cabinet with the 690 woofer and x-over???

Cichocki
09-27-2005, 08:13 PM
B-2,

Sorry I didn't see your previous post. Here are a couple more shots to go along with the picture from the link referenced above. I got these puppies off eBay over the summer for $240! Not a $10 score, but I can't think of a better bookshelf than these for comparable coin. I have these in a triple stack with the NS-690s and a set of HPM-100s, driven by my SX-1980. The 500m's are by far my favorite of the three. Really fantastic sound. Not quite up to my JBL horns or Magnepans, but damn fine nonetheless.

-Brian

http://img358.imageshack.us/img358/2369/dsc020520uu.jpg (http://imageshack.us)

http://img358.imageshack.us/img358/2711/dsc020543ja.jpg (http://imageshack.us)

http://img358.imageshack.us/img358/8242/dsc021507fh.jpg (http://imageshack.us)

Yamaha B-2
09-27-2005, 08:42 PM
Thanks! Nice looking. Wish I could hear them. That's a lot of music you have there in that stack.

lordfoo
02-16-2006, 03:46 AM
Oh.. I did get the NS690. I let go the 670's. Later I decided to get the 670's also and came back for them. The 670's looked like the 690's except the woofers were smaller. They were gone though.

Here's a pic of the 690's in my living room with the yamaha CA1000 I also acquired at almost the same time.

http://i29.photobucket.com/albums/c289/Lordfoo/DSCN0833.jpg

and then here's the 690 beside a KLH Six i got immediately after the 690's.

http://i29.photobucket.com/albums/c289/Lordfoo/DSCN0880.jpg

Yamaha B-2
02-28-2006, 06:38 PM
Nice set of NS-690IIs in the Seattle area: http://cls.audiogon.com/cgi-bin/cls.pl?spkrfull&1145825162

Duffinator
10-20-2006, 05:48 PM
Does anybody know if replacement surrounds are available for the drivers in the NS-690II's?

Thanks

Yamaha B-2
10-20-2006, 07:30 PM
Ask GordonW. He will know.

Crimson King
12-18-2011, 04:29 PM
So, what's the biggest difference between NS-690 MK I, II & III?

I would really love to get a pair of those to make my Yamaha vintage setup complete. :music:

Spectrum77
12-18-2011, 09:34 PM
Main physical difference is the woofer design in NS-690 easily recognisable by the lack of ribbing and vented centre cap (JA-3056). Mk I woofer has the cloth surround with Mk II and III sporting the rot-prone foam jobs. This model also had tri-amping capability with the crossover set-up. I've not spent as long with this woofer as JA-3060A in NS-690II but I can't hear a huge difference at moderate volume. However, preference does go to the later model woofers as proven in NS-1000M (quite similar woofer JA-3058A but with cloth surround). No problem with this woofer at high volume for extended periods.

Cab sizes are pretty much identical with the III being slightly taller. NS-690III mirror imaged. NS-690 cabs are ply, II and III particle board.

I can't physically compare Mk III crossovers with Mk II but I believe they are slightly different. Crossover point is the same for all models.

MkIII has different attenuators- Mk I and II almost always need a thorough cleaning.

Hope that helps. In short, you can't go wrong with any of the models.

NS-690II measurements: http://audiokarma.org/forums/showthread.php?t=280589

Crimson King
12-19-2011, 04:58 AM
Main physical difference is the woofer design in NS-690 easily recognisable by the lack of ribbing and vented centre cap (JA-3056). Mk I woofer has the cloth surround with Mk II and III sporting the rot-prone foam jobs. This model also had tri-amping capability with the crossover set-up. I've not spent as long with this woofer as JA-3060A in NS-690II but I can't hear a huge difference at moderate volume. However, preference does go to the later model woofers as proven in NS-1000M (quite similar woofer JA-3058A but with cloth surround). No problem with this woofer at high volume for extended periods.

Cab sizes are pretty much identical with the III being slightly taller. NS-690III mirror imaged. NS-690 cabs are ply, II and III particle board.

I can't physically compare Mk III crossovers with Mk II but I believe they are slightly different. Crossover point is the same for all models.

MkIII has different attenuators- Mk I and II almost always need a thorough cleaning.

Hope that helps. In short, you can't go wrong with any of the models.

NS-690II measurements: http://audiokarma.org/forums/showthread.php?t=280589

Thank you for your reply. Could you say II is better and III is the best out of these?

Spectrum77
12-19-2011, 06:19 PM
I don't have Mk III to subjectively compare. Other members may be able to help. I doubt there is a significant sonic difference, if any.
Just be prepared to re-foam the woofers on most specimens. I get the Mk II and replace the woofers with NS-1000 (JA-3058A) as they are readily available in Japan.
Unfortunately, these woofers are also prone to freezing due to magnet shift. The epoxy becomes brittle with age and jams the woofer. Plenty of discussion of this and remedies on AK.

Ken Boyd
12-19-2011, 08:28 PM
Most of these post are pretty old, but the 690, and any of the 670's do not have any be drivers. And they don't even compare to either the NS500m or the NS1000m's or NS1000's. The NS500 does have a be high frequency driver but not a be midrange it is titinum. The NS500 is much better than any of the other models other then the NS1000 series which sounds much better than the NS500m. Not only does the NS1000 series have the be mid driver but the hi frequency be driver in the NS1000 series is a much better driver than the one in the NS500 and the crossover on the NS1000's is a much better crossover. Other than the some models like the FX1 or NS10000 the NS1000 series is the best and then the NS500m, and all others fall way down the list.

Wow that was pretty hard to put in writing!

Crimson King
12-20-2011, 04:00 AM
Thank you for your comments. The NS-690s are quite hard to find from Europe, let alone Finland. There's some NS-690s on The Auction Site, but they are mostly from the North America and unfortunately the sellers usually won't ship them here. :tears:

I would really like to make my Yamaha vintage setup complete. Maybe some day...

Spectrum77
12-20-2011, 04:11 AM
Don't give up. If you can pay the exorbitant shipping costs (they are REALLY heavy), then it's no problem to get A Nice Pair (Pink Floyd reference) from Japan.
I find NS-690I and II as pleasurable as the NS-1000M, albeit a different sound. Not less, just different.

ehoove
12-20-2011, 05:43 AM
I find NS-690I and II as pleasurable as the NS-1000M, albeit a different sound. Not less, just different.

And more forgiving of the electronics feeding them. IMHO

I have a pair of NS690's (Mk1) and find them a truly wonderful monitor type speaker driven by a Yamaha CR2040, Acurus A200, or 6L6 PP Tubes.:music:
Regards,
Jim

avionic
12-20-2011, 06:14 AM
Eye candy..:D

1000,1000M & 690.

Crimson King
12-20-2011, 07:03 AM
Eye candy..:D

1000,1000M & 690.

Oh, yeah! Damn, I want those! :thmbsp:

Chris01011
12-20-2011, 12:23 PM
Oh, yeah! Damn, I want those! :thmbsp:

Don't forget the NS-1000x... :)

gvalent
12-20-2011, 01:22 PM
And more forgiving of the electronics feeding them. IMHO

Totally agree.

I have NS-690IIs & NS1000Ms. One of the biggest differences between the two is that 690s are more forgiving. A wonderful speaker that I can't get myself to part with.

The NS1000Ms on the other hand, given good electronics and source material are steps above the 690s in all aspects, especially in transient response and dynamics. These are true monitors though, and will reveal any flaws behind them so they are not for everyone (British monitors these are not!).

john liddil
12-21-2011, 12:44 PM
What would be a fair price for a set of the Yamaha NS-690II'S today?

gvalent
12-21-2011, 03:10 PM
Does anybody know if replacement surrounds are available for the drivers in the NS-690II's?

Thanks

Try calling Orange County Speakers. They may sell them.
It's been a while, but I had mine re-foamed there.

Crimson King
03-17-2012, 08:23 AM
I wonder if there's any difference between the tweeters NS-670/690: JA-0509, NS-690II: JA-0509B, NS-690III: JA-0509C?

Can I replace one (or both) NS-690III tweeter(s) for example with NS-690 tweeter(s)? Can I hear any difference?

gvalent
03-17-2012, 10:25 AM
Others may know better, but if I recall the tweeters for all the 690's and the 670 are interchangeable.

Crimson King
03-17-2012, 11:11 AM
Others may know better, but if I recall the tweeters for all the 690's and the 670 are interchangeable.
Yes, they are exactly the same size and look exactly the same. Both are also 8 Ohms. But I wonder if there's still some difference between those tweeters.

bobbyrae
05-04-2012, 06:45 AM
What would be a fair price for a set of the Yamaha NS-690II'S today?

I am looking some guy on Craigslist that wants $650 for some NS-690 series III's and there is another guy who wants $450 for a pair of NS-500M's. From what one guy said HERE, the 500's are the better speakers.

Gary D Olson
06-09-2013, 11:27 AM
Eye candy..:D

1000,1000M & 690.

It looks like eenee-meenee-miney-mo is in order. Beautiful speakers.

Thanks.


Gary

Ken Boyd
06-09-2013, 12:12 PM
I am looking some guy on Craigslist that wants $650 for some NS-690 series III's and there is another guy who wants $450 for a pair of NS-500M's. From what one guy said HERE, the 500's are the better speakers.

The NS 690's and 670's use I think aluminum domes for the mid and hi frequency drivers, where as the NS-500m uses a Beryllium dome on the hi frequency driver and a titanium dome on the mid driver, both are lighter and strong and in Yamaha's pecking order more expensive drivers when manufactured. Overall some people like the more forgiving nature of the 690's and 670's, I don't.

moebuster
06-09-2013, 12:56 PM
-have a pair of NS-200M's
i wonder if they are same/similar to the 500 save the woofer size/type.
the 200 has a white coned ,sort of impregnated cloth surround.10"