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MS Matrix Mid-Side Encoder Decoder Kit Bare DIY PC Board for Audio Mastering

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Description

This is the MS Matrix kit bare DIY PC board based on the Wayne Kirkwood design published in the Pro Audio Design Forum. The Precision MS Matrix uses high accuracy THAT1240 line receivers to perform mid-side sum and difference functions providing crosstalk performance unobtainable with conventional precision resistors.

The Precision M/S Matrix provides simultaneous encode/decode capability. THAT1246 line receivers and THAT1646 OutSmarts® line drivers provide fully-balanced I/O for the encoder and decoder inputs and outputs.

The THAT1240 used in the Precision M/S provides resistor ratio matching that is typically 0.005% (50 ppm) enabling full encode-decode crosstalk performance that is typically >60 dB across the full audio band. In the precision monitoring mode, which bypasses the encoder line driver and decoder line receiver, crosstalk is typically >75 dB. The precision monitoring mode allows the matrix to remain in the path permitting the effects of insert processing to be isolated for precise "A-B" comparison and level-match.

Additional unbalanced insert points are provided for encode left and right (post line receiver), encode mid and side (pre line driver), decode mid and side (post line receiver), and decode left and right (pre line driver). These additional insert points permit muting, level trim and precision "end-to-end" (E-E) monitoring via external circuitry.

The decode path has user-adjustable gain or attenuation before the final L and R outputs to provide overall unity gain E-E operation. If a variable gain encode option is required for the M and-or S channels to reduce "mono build-up," the decode section can be used to encode (and vice-versa) with reduced precision. The MS board can also operate as two simultaneous encoders or decoders by simply redefining its connections.

In addition to duty as an MS Matrix, the insert points allow the board to be used as a four channel balanced line driver-receiver without MS encoding. Two of the four THAT1646 line driver outputs provide user-selectable variable gain. The MS Board configured as a line driver receiver is the "Swiss Army Knife" of balanced I/O.

The discussion thread for the Precision M/S Matrix "Build" is featured in the Pro Audio Design Forum.
http://www.proaudiodesignforum.com/forum/php/viewtopic.php?f=7&t=262

Test results including crosstalk, noise and distortion performance are here: http://www.ka-electronics.com/kaelectronics/MS_Matrix/MS_Matrix.htm

There's a GearSlutz Forum discussion on the Precision M/S Matrix here.
http://www.gearslutz.com/board/mastering-forum/356250-m-s-hardware-box-other-then-dangerous.html#11

Thank you! The Precision MS Matrix clients include: Paul Gold, Bob Katz, Stephen Hoist, Puertas Antonin, Stephen Snavley, Michael Mader, Milos Pavlovick, Jeffrey Fung-Loy, Jeremy Williams, Stanislaw Eberlein, Daniel Silvia, David Carlsson, Jonathine Conine, Mako Natsume, Michael Sandsedt, Da Goose Music, Frederic Alstadt, Douglas Williams, Peter Croissant, Ludwig Maier, Michele D'Anca, Andrew Hughes, John Ross, Drew Cappotto, Marko Schoen, Kevin Sykes, Dan Devecka, Michael Blockland, Stale Storlokken, Diffusion Audio, Arti Hadi Mohamed, Ross Giles, Fabio Giraldo, Clive Jenkins, Jena Technologies, Jaun A Campos Garcia, Maximillian Ondrusch, Fabio Delben, Antoine Toublanc, Dan Kennedy, Ao Mahana, Marc Goldman, John Baldwin, Darcy Lindahl, Guy Focher, Brian Horvitz, Sean Williams, Herve Keroullias, Brio Taliaferro, Wladi Turkewitsch, Michael Krizizek, Udo Terlisten, Jules Fradet, Daniel Ovie, Bruno Cimenti, Udo Terlisten, Andreas Wolff, Columbus Discount Records, William Wilson, Little Red Mastering, Jaakko Viitalahde, Haima Marriott, Anthony Paganini, Doctron UG, Novko Ilic, James Renny, Daniel Joseph, James Fei, Jonathan Reig, Kevin Bartley, Remi Gonzales, Holger Classen, Nathan Turnbull, Steven Glaze, Bonati Mastering, Aubrey Ottley, Darryl Dearing, Robert Fausner, Elektra Mastering, Dylan Lauzon, Mantas Stankunas, Heikki Tikas, DUb Studio Vinyl Cutting, Jean-Charles Panizza, Dr. Jim Rothwell, Ross Martin, Mark Watson, Jered Flickenger, Martin, Englert, Ruben Hulzebosch, Fokuss Productions, Teemu Muikku, Carlo Cola, Arne Ziemann, Peter Gonzales, Guiseppe Rodolfi, Nils Faller, Alessandro Benedettelli, Patrick Klem, Gabriel Ogrin, Jun Fernandez, Pedro Romero, Sebatien Chimenes, Greg Reierson, Kudrina Irina, Yu Riy, Jean-Pierre Teulade, Josh Starks, James Lockhart, Rowan Spicer, Xewin Sylvain Ehinger, Tobia Ober, Ian Sefcheck, Trotto Tiziano, Temmy Soesanto, Robb Morrison, Olof Gornerup, Alexandre Beucler, Christophe Chapelle, Fred Masson, Michael Clarke, Salvatore Iaconis, John McAllister, Peirre Caillet, Scott Hull Mastering, Pierre-Yves Marani, Jason May, Ardi Maesalu, Markus Kretschmer, Markus Samper, Martijn Ceulemans, Arne Ziemann, Sinetracks Mastering, Roman Adam, Lee Cardan, Sketch Da Shaman, Adam Smith, Parshikov Olegovich, Camilo Ruiz, McFarlane Audio, Ates Kozal, Chang Wei Heng, Dan Steinman, Paul Ebert, Vincent Charpentier, Alexander Khryplyvyy, Ed Hamilton, Stewart Walker, David Lindsey Ricardo, Mary Jones, Sam Winston, Bruce Seifried, Franco Bedin, Matthew Tucci, Andreas Koslik, Make Believe Studio, Kevin Ramsey, Hannes Haindl, Patricio Tron, Antti Voipio, Zander Macharis, Norbert Hesse, Denis Alexeitsev, Dave Cotgrave, David G Brown, Martin Sequeira, Peter Montgomery, Sjoerd Wijdoogen...
This is the MS Matrix kit bare DIY PC board based on the Wayne Kirkwood design published in the Pro Audio Design Forum. The Precision MS Matrix uses high accuracy THAT1240 line receivers to perform mid-side sum and difference functions providing crosstalk performance unobtainable with conventional precision resistors.

The Precision M/S Matrix provides simultaneous encode/decode capability. THAT1246 line receivers and THAT1646 OutSmarts® line drivers provide fully-balanced I/O for the encoder and decoder inputs and outputs.

The THAT1240 used in the Precision M/S provides resistor ratio matching that is typically 0.005% (50 ppm) enabling full encode-decode crosstalk performance that is typically >60 dB across the full audio band. In the precision monitoring mode, which bypasses the encoder line driver and decoder line receiver, crosstalk is typically >75 dB. The precision monitoring mode allows the matrix to remain in the path permitting the effects of insert processing to be isolated for precise "A-B" comparison and level-match.

Additional unbalanced insert points are provided for encode left and right (post line receiver), encode mid and side (pre line driver), decode mid and side (post line receiver), and decode left and right (pre line driver). These additional insert points permit muting, level trim and precision "end-to-end" (E-E) monitoring via external circuitry.

The decode path has user-adjustable gain or attenuation before the final L and R outputs to provide overall unity gain E-E operation. If a variable gain encode option is required for the M and-or S channels to reduce "mono build-up," the decode section can be used to encode (and vice-versa) with reduced precision. The MS board can also operate as two simultaneous encoders or decoders by simply redefining its connections.

In addition to duty as an MS Matrix, the insert points allow the board to be used as a four channel balanced line driver-receiver without MS encoding. Two of the four THAT1646 line driver outputs provide user-selectable variable gain. The MS Board configured as a line driver receiver is the "Swiss Army Knife" of balanced I/O.

The discussion thread for the Precision M/S Matrix "Build" is featured in the Pro Audio Design Forum.
http://www.proaudiodesignforum.com/forum/php/viewtopic.php?f=7&t=262

Test results including crosstalk, noise and distortion performance are here: http://www.ka-electronics.com/kaelectronics/MS_Matrix/MS_Matrix.htm

There's a GearSlutz Forum discussion on the Precision M/S Matrix here.
http://www.gearslutz.com/board/mastering-forum/356250-m-s-hardware-box-other-then-dangerous.html#11

Thank you! The Precision MS Matrix clients include: Paul Gold, Bob Katz, Stephen Hoist, Puertas Antonin, Stephen Snavley, Michael Mader, Milos Pavlovick, Jeffrey Fung-Loy, Jeremy Williams, Stanislaw Eberlein, Daniel Silvia, David Carlsson, Jonathine Conine, Mako Natsume, Michael Sandsedt, Da Goose Music, Frederic Alstadt, Douglas Williams, Peter Croissant, Ludwig Maier, Michele D'Anca, Andrew Hughes, John Ross, Drew Cappotto, Marko Schoen, Kevin Sykes, Dan Devecka, Michael Blockland, Stale Storlokken, Diffusion Audio, Arti Hadi Mohamed, Ross Giles, Fabio Giraldo, Clive Jenkins, Jena Technologies, Jaun A Campos Garcia, Maximillian Ondrusch, Fabio Delben, Antoine Toublanc, Dan Kennedy, Ao Mahana, Marc Goldman, John Baldwin, Darcy Lindahl, Guy Focher, Brian Horvitz, Sean Williams, Herve Keroullias, Brio Taliaferro, Wladi Turkewitsch, Michael Krizizek, Udo Terlisten, Jules Fradet, Daniel Ovie, Bruno Cimenti, Udo Terlisten, Andreas Wolff, Columbus Discount Records, William Wilson, Little Red Mastering, Jaakko Viitalahde, Haima Marriott, Anthony Paganini, Doctron UG, Novko Ilic, James Renny, Daniel Joseph, James Fei, Jonathan Reig, Kevin Bartley, Remi Gonzales, Holger Classen, Nathan Turnbull, Steven Glaze, Bonati Mastering, Aubrey Ottley, Darryl Dearing, Robert Fausner, Elektra Mastering, Dylan Lauzon, Mantas Stankunas, Heikki Tikas, DUb Studio Vinyl Cutting, Jean-Charles Panizza, Dr. Jim Rothwell, Ross Martin, Mark Watson, Jered Flickenger, Martin, Englert, Ruben Hulzebosch, Fokuss Productions, Teemu Muikku, Carlo Cola, Arne Ziemann, Peter Gonzales, Guiseppe Rodolfi, Nils Faller, Alessandro Benedettelli, Patrick Klem, Gabriel Ogrin, Jun Fernandez, Pedro Romero, Sebatien Chimenes, Greg Reierson, Kudrina Irina, Yu Riy, Jean-Pierre Teulade, Josh Starks, James Lockhart, Rowan Spicer, Xewin Sylvain Ehinger, Tobia Ober, Ian Sefcheck, Trotto Tiziano, Temmy Soesanto, Robb Morrison, Olof Gornerup, Alexandre Beucler, Christophe Chapelle, Fred Masson, Michael Clarke, Salvatore Iaconis, John McAllister, Peirre Caillet, Scott Hull Mastering, Pierre-Yves Marani, Jason May, Ardi Maesalu, Markus Kretschmer, Markus Samper, Martijn Ceulemans, Arne Ziemann, Sinetracks Mastering, Roman Adam, Lee Cardan, Sketch Da Shaman, Adam Smith, Parshikov Olegovich, Camilo Ruiz, McFarlane Audio, Ates Kozal, Chang Wei Heng, Dan Steinman, Paul Ebert, Vincent Charpentier, Alexander Khryplyvyy, Ed Hamilton, Stewart Walker, David Lindsey Ricardo, Mary Jones, Sam Winston, Bruce Seifried, Franco Bedin, Matthew Tucci, Andreas Koslik, Make Believe Studio, Kevin Ramsey, Hannes Haindl, Patricio Tron, Antti Voipio, Zander Macharis, Norbert Hesse, Denis Alexeitsev, Dave Cotgrave, David G Brown, Martin Sequeira, Peter Montgomery, Sjoerd Wijdoogen...

Reviews

5 out of 5 stars
(21)
Reviewed by Dainius
5 out of 5 stars
Apr 26, 2018
Perfect PCB and seller! Thank You!
MS Matrix Mid-Side Encoder Decoder Kit, PC Board and THAT ICs for Audio Mastering

Reviewed by christian
5 out of 5 stars
Mar 20, 2018
super fast shipping, super friendly service -- and a very competent and powerful phono stage that works like a charm. highly recommended!
Phono Transfer System Flat MM Balanced Input Preamp, Assembled Tested PC Board

Reviewed by noizzer
5 out of 5 stars
Mar 10, 2018
Perfect seller! Thanks for all.
Insert Switcher PC Boards, Ms pcb, That Ics

Reviewed by cyrille
5 out of 5 stars
Mar 6, 2018
Very nice board
very good communication
MS Matrix Mid-Side Encoder Decoder Kit, PC Board and THAT ICs for Audio Mastering

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MS Matrix Mid-Side Encoder Decoder Kit Bare DIY PC Board for Audio Mastering

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$29.95

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