Yes most subs with closed box design are EQ'd to produce 20Hz . thats the only practical way else the TS parameters and size of the driver and cone mass gets absurd and it will not perform well at the upper frequncies .
And B&W do still uses the force cancelling idea with dual oposed woofers in some curretn subwoofer models and so do some other brands Arendal for example . Sadly i dont have the house for it to do a real IB design as oposed to a closed box . make a hole into the attic (or other ) crawlspace put multiple drivers there and controll it with some EQ .http://ibsubwoofers.proboards.com/ Also i'm not detered by size . A lot of engineering goes into making small subwoofers mostly for eastehic reasons , the cab should be the size it needs to be for optimum performance . As a lot of power is needed for the EQ alone making the sub even more ineficient by reducing size seems such a waste to me . why fight against nature . -------------------------------------------------------------------- Main hifi: Touch + CIA PS +MeridianG68J MeridianHD621 MeridianG98DH 2 x MeridianDSP5200 MeridianDSP5200HC 2 xMeridianDSP3100 +Rel Stadium 3 sub. Bedroom/Office: Boom Kitchen: Touch + powered Fostex PM0.4 Misc use: Radio (with battery) iPad1 with iPengHD & SqueezePad (spares Touch, SB3, reciever ,controller ) server HP proliant micro server N36L with ClearOS Linux http://people.xiph.org/~xiphmont/demo/neil-young.html ------------------------------------------------------------------------ Mnyb's Profile: http://forums.slimdevices.com/member.php?userid=4143 View this thread: http://forums.slimdevices.com/showthread.php?t=108865 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
