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Very true, and that can also be done post the preamp or in the DAW where if necessary, small gain changes can be made to optimally cancel the noise component. Tim ----- Original Message ----- From: "Association for Recorded Sound Discussion List" <[log in to unmask]> To:<[log in to unmask]> Cc: Sent:Thu, 7 Nov 2019 23:48:00 +0000 Subject:Re: [ARSCLIST] [EXTERNAL] Re: [ARSCLIST] Trouble with Edison Diamond Disc At some point, you need to sum the two channels to mono to cancel the opposite-polarity noise component. Gary Get Outlook for Android<https://aka.ms/ghei36> ________________________________ From: Association for Recorded Sound Discussion List <[log in to unmask]> on behalf of Tim Gillett <[log in to unmask]> Sent: Thursday, November 7, 2019 6:23:55 PM To: [log in to unmask] <[log in to unmask]> Subject: [EXTERNAL] Re: [ARSCLIST] Trouble with Edison Diamond Disc ---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 ------------------------- Email sent using Optus Webmail