signaltonoize.com » Jogn Hardy M1 http://www.rhythminmind.net/presetblog Audio processing tools - Information - & Captures. Fri, 30 Jul 2010 07:21:21 +0000 en hourly 1 http://wordpress.org/?v=3.0.1 DIY – 12 to 2 – Passive Analog Summing Panel. http://www.rhythminmind.net/presetblog/2009/11/diy-12-to-2-passive-analog-summing-panel/ http://www.rhythminmind.net/presetblog/2009/11/diy-12-to-2-passive-analog-summing-panel/#comments Tue, 17 Nov 2009 08:50:16 +0000 rhythminmind http://www.rhythminmind.net/presetblog/?p=1004 Made myself a nice little passive summing panel for my home rig out of parts laying around the shop. I wanted to simplify/improve my final summing stage. Pleased with the results, Sounds great. Gives me piece of mind bypassing the channel IC’s & master section on my Sony MXP desk.

I used a simple XLR panel, Neutrik XLR mounts, Neve super conductive cable, & OHMITE 1% metal film resistors. Took all of 2 hours to wire up.

10.7k resistors on the inputs & a 220 shunt on the outputs.

After level calibration my noise-floor is at -80 & crosstalk @ -88.

FYI – this is with a John Hardy M1 transformer pre for the make up gain. Nothing better IMHO.

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