The New B versions have been upgraded and optimized in almost all areas:
Cabinets: The internal construction has been changed, in order to optimize airflow which combined with the minimalistic use of damping-material has created a very dynamic and linear low frequency reproduction. The old acoustically vented cabinets have now been replaced with a ported cabinet, which is tuned for optimal impulse response - resulting in a more linear, dynamic and detailed low-end reproduction, while at the same time making in-room placement of the speaker much easier and versatile.
Drivers: The woofer and midrange drivers, have been fitted with a new low loss spider which greatly improves the dynamic capabilities as well as expanding the frequency response in the bass region. - A very nice side effect of this is that the break-in period has been reduced greatly (around 100 hours).
Crossover: The crossovers have been completely redesigned. This has resulted in a much more linear and natural sound, which is clearly visible throughout the whole line. The crossover has been designed to time-align all drive units at listening distance - The result is a speaker which not only presents a big and precise soundstage - it also boasts a timing that will make your foot tap and put a big smile on your face!