The new Mercury 66 Studio Limiting Amplifier is an all tube, all transformer, fully balanced, variable-bias limiter based on the most sought after product in this genre, the legendary Fairchild 660. This limiting amplifier is recognized as an essential tool for making great recordings. Many manufacturers have tried to copy the Fairchild circuit but have failed to capture the sonic essence and overall tone of the original. Until now.
Mercury Recording Equipment has gone to great lengths to recreate the pride and passion of the past, both sonically and aesthetically, while offering the reliability of a modern build. The choices made in looks, layout, functionality, features and build quality all answer back to one question: How would "they" have done it today? So, the Mercury 66, like all Mercury products, has no ICs (chips), and is proudly hand built and assembled in the USA using no-compromise parts/components and has transformer balanced inputs and outputs. With the vintage style VU meter, large bakelite knobs and powder coated chassis and front panel, the Mercury 66 has a very distinctive 1950s aesthetic so that they look as good as they sound!

The Mercury 66 Studio Limiting Amplifier is based on the classic Fairchild 660 limiting amplifier because we were inspired buy the unique sound that only this circuit delivers to your audio signal path. Using parts that are available today, we have met all the original specifications, but most importantly, the Mercury 66 sounds like a Fairchild. Its performance features include:

Exceptional tone and musical focus

Absence of audible thumps, distortion or noise

Extremely fast attack time that can produce full limiting in 1/5000th of a second

Variable release time from .3 seconds to 25 seconds

Useful as a limiter or a compressor depending on the program material and control settings

Reliability and stability (All components operate well below their rated maximums)

All tube, fully balanced (push-pull) transformer coupled circuitry

Simple, easy to use controls.