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