The CharterOak SA538 is an affordable, high quality alternative to other condenser microphones in its class. Its sonic integrity, extreme durability, overall design simplicity, and serviceability make it an attractive option to any of the condenser microphones of its type currently available. The CharterOak SA538 is a dual diaphragm vacuum tube condenser microphone. Nine (9) pick up patterns are switchable. It is delivered in a locking flight case, power supply, shock mount, and appropriate cables.

The high standard of quality and affordability of the CharterOak SA538 have been achieved through an extended period of research and development, including beta testing by a wide variety of end users.

The parts of the CharterOak SA538 are machined from solid brass and high quality electronic components are used throughout.

The microphones are finished and the parts are quality checked a second time by experienced engineers. The process involves a seven (7) day burn in of the vacuum tube and no less than ½ hour spent with each microphone in a studio environment. Careful listening tests employ high quality microphone preamplifiers and high resolution monitoring systems. Quality checks on every component of each kit complete the process. It is only after this exhaustive finishing and quality control process is complete, that an SA538 will be cleared for sale to the customer.

The microphone is delivered with a lifetime warrantee on all parts and labor and easy access to factory technical support.