Originally Posted by NoClue64
I have a pair of B&W 601's circa 2000. Can anyone compare the differences I can expect to hear between these and a new Sierra pair?
I had a pair of B&W 602's from about the same time. Gold colored tweeters w/lens, yellow woven Kevlar woofers, front ported. The sound was typical, in your face British. Those metal domes caused ear fatigue.
I bought a pair of original CBM-170's to compare. The 602's were sold.
The 170's imaged better, and were not harsh on my ears. More midrange detail came through. They could not play as loud, but with a sub they could play louder than I needed.
The Sierra-1 replaced the 170's. They are in a different league. They have greater resolving ability, letting minute details through. The bass digs very deep and is detailed. The highs are detailed but never harsh. The bamboo cabinet is rock solid. Imaging is excellent.
The NrT upgrade, including the Neo Ring tweeter and new crossover, ups the ante. The midrange is brought forward a bit with even greater body & detail. The highs have greater ""air" and extend way up. The tweeter does not compress and sounds more dynamic, with more energy. It surprises me sometimes how much treble punch is there, even at lower volumes.
Basically, you are moving out of the budget bookshelf speaker category going from the 601's to Sierra's.