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Mods for the TCM1150

  • Open Plan RecordingOpen Plan Recording
    Mark Chierego’s mod for the T-11A and clones (Apex 460) includes circuit and component upgrades such as transformer (Lundahl, Samar, Cinemag), tube and capsule (K-47 or CK-12 style). The mics are voiced with either the Neumann U47 or AKG C12 in mind.
  • Microphone PartsMicrophone Parts
    The Fox 460 mod kit from Microphone-Parts delivers a comprehensive replacement of the mic’s circuitry, resulting in a significant reduction in distortion and noise, and an increase in sensitivity. High-frequency shaping is another feature of the new circuit. The kit includes custom PCBs, handpicked audiophile components, silver/Teflon audio wiring, and a full-color, step-by-step installation guide. Voice the mic like a U67, C12, U47, or ElaM 251. See also the new C12-style replacement grille option.

9 polar patternsNady TCM1150

Multi-Pattern Tube Condenser Microphone

The TCM-1150 is a variable-pattern, dual-diaphragm, large diaphragm tube condenser mic that is a favorite starting point for mic modders.

It is manufactured in China, although as with all outsourced manufacturing it is impossible to state specifically which factory might have produced the mic at any time. Indeed, it is likely the supplier has changed since the mic’s introduction, and maybe for each production run.

The mic uses a 6072/12AT7 tube, a 1-inch diaphragm that is almost certainly a Chinese-made K67-style (center-terminated, dual-diaphragm) capsule, and a 9-way pattern selection switch on the power supply.

See also our Apex 460 mods page.

The Nady TCM1150 is also known as: TCM-1150.


Frequency Response - OmnidirectionalClick Graph to Compare!
TCM1150 Omnidirectional Frequency Response Chart
Frequency Response - CardioidClick Graph to Compare!
TCM1150 Cardioid Frequency Response Chart
Frequency Response - BidirectionalClick Graph to Compare!
TCM1150 Bidirectional Frequency Response Chart
Pickup Patterns Pads & Filters
Omnidirectional (25 mV/Pa; 20 - 20,000 Hz)
Cardioid (25 mV/Pa; 20 - 20,000 Hz)
Bidirectional (25 mV/Pa; 20 - 20,000 Hz)
Capsule Dimensions Impedance SPL/Noise
Diaphragm diameter: 26mm
200 Ohms (Low) Max SPL: 134 dB
Weight Length Max Diameter Interface(s)
824g (29.07oz) 240mm (9.45'') 46mm (1.81'')
  • 3-pin XLR male (1)
Power Specifications
  • Includes tube power supply

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