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Charter Oak SA 538 Tube Microphone

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Price:
$1,649.00
Availability:
In Stock
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Product Description

The CharterOak SA538 is an affordable, high quality microphone. Its sonic integrity, extreme durability, overall design simplicity, and serviceability make it an attractive option to any of the condenser microphones of its type. 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 process of creating a CharterOak SA538 Condenser Microphone is started by hand under the strict supervision of CharterOak personnel. Under that supervision the parts are quality checked and assembled in Connecticut.

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.

From the research and development to the delivery of every SA538, it is this attention to detail that makes the SA538 truly unique in its class.

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

Specifications
Acoustical Operating Principle Pressure Gradient
Diaphragm Dual 1.07" 6 micron thick gold sputtered Mylar
Frequency Response 30Hz-20kHz
Sensitivity 12mV/Pa 0dB=1V/Pa@1kHz
Polar Pattern Cardioid, Omni, Figure-8, and intermediate stages selectable from power supply
Impedance 200 Ohms
Recommended Load 200 Ohms
Equivalent Input Noise 22dB A weighted IEC651
Maximum Sound Pressure Level 128dB for 0.5% total harmonic distortion @ 1kHz
Power Requirements Custom supply 115V or 230V operation with IEC type 2 AC Cable
Connection between
Mic Power Supply 7 pin XLR


Warranty Information

Lifetime warranty from the factory

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