The Tonelux JC37 is the product of an endeavor by legendary engineer/producer, Joe Chiccarelli to create a present-day production microphone having the utility and singular sonic characteristics of the Sony C37a mics, manufactured in mid 20th century.
Retaining the base elements of the original design – a vacuum tube buffered 37mm single diaphragm transducer with transformer output, the JC37 foregoes selectors for pattern, frequency response, output impedance and level of the original in favor of a cleaner signal path.
As with the mic stand mount, a three meter cable is integrated into the body of the mic and connects to a Tonelux Universal Microphone Power Supply that is capable of powering two microphones as a stereo setup. Consideration to this is reflected in the carrying case, which holds two microphones along with the PSU.
In order to provide today’s recording engineer with the sonic attributes of the original design, extraordinary care was taken to determine each contributing element in the signal path, as well as physical construction such as the head grill, etc. Listening tests throughout have been conducted at the legendary Sunset Sound Studios with access to their collection of C37a mics.
The JC37, presently in manufacture is the first in the line of Tonelux branded mics – along with a solid state BC37 in concurrent development.
Type: Side address vacuum tube condenser microphone
Pickup pattern: Cardioid
Frequency response: 30Hz – 20kHz
Output sensitivity: 2mV/Pa
Signal to noise: 68dB
Output impedance: 200 ohm
Max SPL: 140dB