Summary: These speakers sound pretty good in stock form but even better with some mods. For more bass (a lot more) you can add two bass reflex ports (available from speaker parts stores) placing one above and between the mid and tweeter and the other below and between mid and tweeter. I found the mid and tweeter too bright and padded them down with several 5 watt cement resistors in series, adding 18 ohms to the tweeter (3 x 6 ohms) and 12 ohms to the mids (3 x 4 ohms).
Summary: The Yamaha NS-6490 3-way design has been on the market for quite a few years and, IMHO, for very good reasons. A listener who values a smooth, full and well balanced presentation and soundstage will be hard pressed to find a better speaker for the money. Have owned and listened to a goodly number of speakers since my college days of yore! These are on my personal "short list" of all around best and most versatile speakers for both music and video, regardless of price.
Summary: I'VE USED YAMAHA SPEAKERS INT THE PAST. I HUNG A PAIR OUTSIDE AWAY FROM THE RAIN AND THEY LASTED 10 YEARS, DITTO FOR THE PAIR I HAD BEFORE THEM. THE POLYPROPYLENE SPEAKERS SHOULD LAST LONGER AS THEY ARE RESISTANT TO MOISTURE. THE PLASTIC FACE SHOULD ADD TO THE WEATHER ENDURANCE OF THESE SOLID SPEAKERS. I LIVE IN MIAMI AND THERE IS PLENTY OF HUMIDITY HERE. IF YOU USE THEM INSIDE THEY SHOULD LAST A LIFETIME.
Summary: upgraded from a set of 2 way sony bookshelfs, and am setting up a 7.1 system. these speakers are great, couldnt ask for better sound, high, mid, and lows are are clear and not at all over done in any area. the reason i gave only 4 stars, is boy are they big, boom box big, and the black mesh screen is very thin you can see the white speaker through it. makes a nice home feel like a frat house. all in all happy with my purchase, go with a 3 way speaker!
Summary: I replaced a pair of Advent Rubies with these. What struck me immediately was a marked increase in clarity and detail -- together with some reduction of warmth. Since detail was my goal, I was pleased. The upper and mid ranges are quite good. I would also call them unforgiving. For example, period instrument recordings are not going to be softened or warmed by these. At times, they verge on being strident -- though, I think they are in fact being literal.