Yamaha NS-690 II Speakers?? Help Identify

I had a pair of these since they were new in '79. Essentially the NS 1000 without the beryllium drivers and with a plain paper cone woofer. Virtually the same crossover, which is why they sound so good. I sold them only recently for very little to a collector in NYC because of foam rot and cabinet damage and because I had too much equipment, but they were my primary speakers till 1995.

90 db efficient, steep rolloff of bass below 45 hz, a wrinkle in the response curve around 2K hz, but otherwise pretty flat. One of the few higher-efficiency designs specifically designed for moderate-powered (< 80 watt) solid state amplifiers. More info on Speaker Asylum list:
http://www.audioasylum.com/audio/speakers/bbs.html

Fritz

I had a pair of these back in '79 also. Mated them with a Yamaha B-2 amp and a Holman preamp. Smooth sound with decent bass down to the mid 30's in my room. Old retail price was $690 (my purchase)

That's about right, the price when I was looking for them was between $675 and $750, which was about $300 less than the 1000's. I too am now looking to get the woffers re-foamed. How much did the job cost you?

I use a pair of rebuilt ns-690's as my main studio monitors---Pleasant and accurate- I find my mixes translate very well!

For the age and price--awsome!

B

a freind gave me a pair and the bass speaker is blown out on both of them what a good replacement?