R
rammsteinboy
Guest
Anyone know wich sub is the better one.
Nimby said:Two BKs (sitting close together) might beat a 675 handsomely.
Scott3 said:I meant no.
I've heard both of these units, and the ASW675 is the better performer by quite some margin. Using dual subwoofers gives a little more output, but not enough in this case I'm afraid.
I would always choose one good subwoofer over 2 adequate subs. Without a second thought.
Scott3 said:Maybe you need to hear yourself a few more subwoofers my friend.
Nah, the Mrs already nags me when the BK simulates a 40 ton artic driving through the house, anything more and I'd be stretching my luck!...PJScott3 said:Maybe you need to hear yourself a few more subwoofers my friend.
Kazman said:Let's not forget we are talking about a budget sub versus a mid range/high end sub.
Scott3 said:Indeed we are, which is why I gave a simple answer initially. However, some people are under the illusion that dual subwoofers increases the performance dramatically and this simply isn't true. There are a number of benefits to a dual subwoofer arangement, but competing with subs a few leagues ahead isn't one of them!
Kazman said:Agreed, two subs will not magically change the sound quality, but it will help with headroom and SPL. The frequency range won't be effected much (although the headroom that is freed up will allow the original frequency repsonse of the sub to be more effective).
The BK is a great budget subwoofer, but it is not good enough to take on the likes of the ASW675, the Quad L subwoofer, the Servo 15 or the MJ Ref100 and Ref200.
The frequnecy range will be affected when you add a second subwoofer, an extra subwoofer means you can deeper bass uncompressed.
What to know why....
Technially almost all subwoofer drivers when driven towards the output limits (assuming you have not exeeded the x-max excursion limits of the driver yet) run into power compression, they dynamicly compress, even without a infrsonic/subsonic filter helping them.
By adding a extra subwoofer and rebalancing the gains, the same SPL level will be produced but with a far less amount of power compression will occour, thus you can have deeper uncompressed bass with two subwoofers over a single subwoofer unit on it's compression limits.
If you want an example of what I am talking about check out these links and look at the *Dynamic range plots*....
http://www.ultimateavmag.com/features/604way/
http://www.ultimateavmag.com/features/704way/
http://www.ultimateavmag.com/features/1004way/
You can plainly see as subwoofers are driven twowards there limits the low end FR can be compromised.
Of course those tests are the worse case senareo as the test is pritty much Anechoic (no echo or reflections), in room we have obvously have room gains but still the effect happens eventually.
rammsteinboy said:Anyone know wich sub is the better one.
Scott3 said:I meant no.
I've heard both of these units, and the ASW675 is the better performer by quite some margin. Using dual subwoofers gives a little more output, but not enough in this case I'm afraid.
I would always choose one good subwoofer over 2 adequate subs. Without a second thought.
Nimby said:Okay! I give in! The 675 was impressive. But I've never heard the likkle BK.
So I'll bow to your greater knowledge.
Anything for a quiet life!
Nimby
You have to break 'em in gradually, while at the same time pushing your luck a little!PJTX100 said:Nah, the Mrs already nags me when the BK simulates a 40 ton artic driving through the house, anything more and I'd be stretching my luck!...PJ