I just replace my B&W603s3/lcr600 with system audio sa1750 and sa720 center.Originally had the crossover in my receiver for the B&W at 60 for the 603s3 and lcr600.The specs for the 603's were freg resp. 44hz-22khz,90 db and 8ohm,crossover freg. 150hz,4khz.The system audio specs are shown as freg. resp. 40hz-40,000hz,90db and 4-8ohm,crossover freg. 700/3000hz.The way the specs are descibed for the SA's has me a little confused being everything is hz vs hz-khz apparently they dont use khz.So i'm a little confused as to where to set my crossover on my reciever for the SA's.Shoud i leave it where it is at 60 or should i do 80 or even take it down to 40.I would appreciate anyone with knowledge on this stuff help me out here.As it is i dont understand the freg specs.
Hi!
Subwoofer/speakers crossover point depends on 'first number' that one in Hz
but it doesnt mean that you should leave it on 40 Hz you might want to increase it to 60 or even 80 (for movies for example) depending on your listening impressions, which one would sound better.
The highest playable frequency is that one in kHz or thousands Hz (kiloHz is 1000Hz) and has nothing to do with subwoofer crossover,
like those internal crossover points (between ways/drivers in your speaker))
they ("700/3000hz" f.e.) show which driver plays particular frequency.
As i know and SA in general aren't the speakers that "dig deply" but they'r bass is clean without distortion.
differencies in freq. response might be the measurment issue
for example B&W (603-have very powerfull BASSS IMO) might have measured freq. responce in window +/- 3dB and SA might have given the lower Freq. at -10dB it is quite a common practic
secondly conditions of measurments in a semi reverbating chamber or anechoic chamber. must say that in your room it may sound in a different way... that is also a fact that the slope in your speakers (and a subwoofer either) plays a part, if it is 24dB/octave you probably would have to increase your crosover point then with 12dB per octave (for example)
sometimes it mis quite difficult to make sub and fronts play low freq. in the same phase so it is reasonable to set the crosover higher with 24dB slope
or leave this job to your receiver if its equiped with self calibration system (like 'audissey') with bass managemen...
the above written is only my poor knowledge and some of my conclusions but hope you find it usable!
Good luck to you!
