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Royer Labs’ Replacement Magnet Assembly for EMT 140 Reverb Plate

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Rick Perrotta and David Royer with the Royer 140-NM magnet assembly
Rick Perrotta and David Royer with the Royer 140-NM magnet assembly

Given the touring market’s increasing interest in touring with retro gear, Royer Labs is offering a high-performance replacement magnet assembly for the EMT 140 Reverb Plate. Designed as a drop-in replacement for missing or weak magnet assemblies, the 140-NM offers improved performance over the original magnet design in these classic 8 x 4 x 1-foot, 600-pound, mechanical reverb devices.

Original 1957 EMT 140 plate reverb
Original 1957 EMT 140 plate reverb

The Royer 140-NM is precision manufactured using six neodymium magnets arranged in a ‘turret’ fashion. This design approach results in an assembly that offers greater flux density for enhanced performance of any EMT plate. The new design lowers distortion and makes the drive coil more responsive.

Designed by Rick Perrotta in partnership with Advanced Theoretical Concepts, the Royer 140-NM package includes an acrylic centering disc, mounting hardware, and a comprehensive set of instructions, along with suggested tips to help audio engineers get the most from their investment.

he 140-NM restores EMT 140 performance
The Royer Labs 140-NM restores EMT 140 performance

Rick Perrotta, President of Royer Labs, commented on the new magnet assembly, “We spent a lot of time making sure our design was not only going to serve as a replacement for the original magnet assembly, but offer improved performance as well. I’m very proud of this accomplishment.”

The 140-NM is the first product available in Royer’s Custom Shop, which was created to release products designed by Rick Perrotta and/or David Royer that fall outside of Royer’s regular pro audio offerings.

The Royer Labs 140-NM EMT Reverb Plate magnet assembly carries an MSRP of $799. The product is currently available from Royer Labs. Custom Shop products can be purchased from Royer’s online Custom Shop https://royerlabs.com/customshop/