From: selinb@pounder.sol.net To: bass@mcfeeley.cc.utexas.edu Subject: Carver ribbon passive crossover Here is the Carver ribbon passive crossover from the bass archives: Bob >From: warnerd@moosilauke.dartmouth.edu (Doug Warner) >Date: Tue, 28 Jun 1994 20:51:26 -0400 >Subject: Re: Carver Ribbon > >Okay. Here is the circuit for the "Amazing Loudspeaker" Platinum Mark >IV, shamelessly copied from _The Audio Critic_, no 17. > > > 8.5 uF > 0.1 > || > +--------------||----/\/\/\/-----------------------------------+ > | || | > | 76 uH 750 uH 480 uH | > | ____ ____ ____ | > | +--0000--+ +--0000---+ +--0000--+ | > | 100 uF / | / | / | | > | \ 0.1 | \ 0.4 | \ 0.4 | | > | || / | / | / | | >Input ----+--||-----+---------+ +-----+-/\/\/\/-+---+ +----+ > | || | | 3 uF | | 5.5 | | | | > | (0 | | | | | 4 | | > | (0 5.25 mH | || | | | | | | > | (0 +---||---+ | 35 uF | +-/\/\/\-+ | > | | || | | | > | \ | || | | > | / 2.25 +---||----+ | > | \ || | > | / | > | \ +--------------+ > | | | | > | --- | \ > \ | / > / | 0.2 \ > \ 1.4 | / > / | \ > \ | | > | | | > | | (0 > | | 160 uH (0 > (0 | (0 > 11.2 mH (0 \ | > (0 350 uF Ribbon / | > | || \ 4 uF --+-- > +--||----+ 4.6 / --+-- > | || | \ | > (0 --- / | > 6.9 mH (0 \ \ > (0 | 2.5 / > | | \ > | | | > \ +--------------+ > / | > 0.7 \ | > / --- > \ 460 uF 3.6 > | ____ > +-----0000---/\/\/\/----+-----+--------------+ > | | | > woofer /|\ /|\ | | | > voice coil +--------+ \ (0 --+-- 10000 uF > 6 / (0 5.3 mH --+-- > \ (0 | > woofer motion -> | | | > +-----+--------------+ > | > --- > > >Of course, no guarantees of accuracy expressed or implied. I don't >think I made any mistakes, though. :-) Some of the resistors are >actually trimmers in the loudspeaker. > >Doug Warner