CharterOak has unveiled the H1000 dual-diaphragm, vacuum tube condenser microphone.
Designed as a dedicated vocal microphone, the H1000 targets engineers ‘with vintage tastes who want high headroom clarity and detail’. Its high-voltage head amplifier and S-1 capsule provide the headroom, detail and a ‘robust’ bottom end. The microphone is fitted with a 6dB/octave high-pass filter (starting at 100Hz roll-off) and a 10dB attenuator.
The H1000’s large body size is a result of large components used in the design – such as the Lundahl transformer and 400V polypropylene film capacitors. The mic is free of body resonance as a result of the use of new powder coatings that solve the problem.
Key specification:
Acoustical Operating Principle: Pressure Gradient.Diaphragm: Dual 1.07-inch 6 micron gold-sputtered Mylar.
Frequency Response: 30Hz to 20kHz.
Sensitivity: 12mV/Pa 0dB=1V/Pa@1kHz.
Polar Pattern: Cardioid, Omni, Fig-8. Intermediate stages selectable from power supply.
Impedance: <200Ω
Recommended Load: >200Ω
Equivalent Input Noise: 22dB A weighted IEC651.
Maximum Sound Pressure Level: 128dB for 0.5% total harmonic distortion @ 1kHz
Power: Custom supply 115V or 230V operation with IEC type 2 AC cable.
Connection between Mic & Power Supply: 7-pin XLR.
