The CharterOak M900T small diaphragm condenser microphone is the vacuum tube version of our popular M900. It is excellent in situations where flat frequency response, excellent transient response, and robust and detailed sound are required.
The CharterOak M900T is a small diaphragm condenser microphone, which employs a vacuum tube head amplifier and Cinemag 2480 output transformer. The microphone utilizes modified versions of our S-5 (cardioid), S-6 (hyper-cardioid), and S-7 (omni-directional) capsule types. All three of these capsules are shipped with each M900T head amplifier, and are easily interchangeable. Sequentially numbered matched pairs are available for stereo recording. The M900T is equipped with a 15dB pad facility, and a 6dB per octave bass roll off at 75Hz. It is delivered in a hard locking flight case with a windsock, shock-mount, and custom power supply, and is guaranteed for life.
Appropriate uses for the CharterOak M900T are acoustic instruments, amplified guitars and bass, percussion, stringed instruments, piano, and ambient room recording etc.
The microphones are delivered with a lifetime warranty on all parts and labor and easy access to factory technical support.
CharterOak M900T matched pair's features
Acoustical Operating Principle: Pressure Gradient
Diaphragm: 20mm
Frequency Response: 25Hz-20kHz
Sensitivity: -34dB (0dB=1V/Pa)
Polar Pattern: Interchangeable via modified S-5, S-6, and S-7 capsules.
Impedance: < 200 Ohms
Recommended Load: > 200 Ohms
Equivalent Input Noise: 13.5dB (A Weighted)
Maximum Sound Pressure Level: 138dB (1kHz at 138dB causes 0.5% Total Harmonic Distortion)
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