---I wouldn't wire the two channels in parallel. Just leave it as standard stereo. Then use a switching box to invert one channel. Either that or invert in the DAW. Wired together  limits the cart to only vertical or lateral, plus there may be times we want channels separately.      Tim Gillett.

----- Original Message ----------

Thanks. I'm using a stereo cartridge wired for vertical grooves. On
Thu, Nov 7, 2019 at 11:49 AM Lou Judson [log in to unmask] wrote: I
don’t do disc, only tape, but a though occurs - why not try it with
a stereo cartridge wired for stereo and look at the waveform? Maybe
that one is not vertical? L Lou Judson Intuitive Audio 415-883-2689 On
Nov 7, 2019, at 7:52 AM, 6295LARGE . [log in to unmask] wrote: The
cartridge is wired out of phase. That's why most of the other EDDs
play beautifully. Thanks, Ben On Wed, Nov 6, 2019 at 5:34 PM Dennis
Rooney [log in to unmask] mailto:[log in to unmask] wrote:
Dear Ben, Is your M44 stereo cartridge wired out-of-phase? It has to
be that way to ensure optimal vertical pickup. DDR