Telefunken CU-29 "Copperhead" Tube Microphone

The Telefunken CU-29 "Copperhead" Tube Microphone, is a large diaphragm valve condenser with a directional cardioid polar pattern. The CU-29 is part of Telefunken’s R-F-T Series of microphones, that have been re-engineered to replicate rare and historic microphones, utilising materials and technology available today. The CU-29 has been designed from scratch, and after a tireless process of testing and development, they are now all manufactured in the USA. The CU-29, or “Copperhead” microphone, has an intimately detailed and crisp top end, balanced beautifully by it's rich, warm low frequency response. It features a single membrane model of the TK67 capsule found in the Telefunken AK-47 mkII. 

    • Telefunken CU-29 PRODUCT FEATURES:

      The CU-29 "Copperhead" was developed from the ground up in our South Windsor, Connecticut facility by TELEFUNKEN Elektroakustik's in-house design team, along with the aid of some of the industry's most knowledgeable and respected consultants. Specific attention was given to circuit board layout, with countless revisions done to optimize current flow and directness of traces. Each component was experimented with and individually selected for the best sonic and electronic qualities. Extra consideration was put on keeping high impedance lines as short as possible to maximize efficiency and minimize unwanted noise. Lastly, a wide array of output transformers was experimented with to provide the most open and sonically pleasing response.

      This fine-tuned amplifier design found in the CU-29 "Copperhead" features a NOS TELEFUNKEN 6AK5W vacuum tube and a Lundahl LL1935 output transformer. Being a cardioid only microphone, the R-F-T CU-29 "Copperhead" employs a single-membrane version of the TK67 large diaphragm capsule used in the AK-47 MkII microphone, which undergoes rigorous testing in our laboratory prior to installation.

      Sonically, the CU-29 "Copperhead" is a remarkably hi-fidelity microphone that provides a warm, clear low end complemented by a smooth, detailed high end. The CU-29 "Copperhead" is an excellent multi-purpose microphone that sounds great on drums, electric guitar, vocals, bass, piano and a countless number of other applications.
      Each CU-29 microphone comes complete with M900 power supply, M800 25' tube microphone cable, M700 elastic shock mount and wooden microphone box.

      Type: Pressure Gradient Condenser
      Capsule: TK67S - 25.4 mm Center Terminated Diaphragm
      Frequency Range: 20 Hz - 20 kHz, ± 2 dB
      Polar Pattern: Cardioid
      Sensitivity: 19.5 mV/Pa ± 1 dB
      THD at 1kHz at 1Pa: <0.3%
      Output Impedance: 19.5 mV/Pa ± 1 dB
      Maximum SPL: 130 dB
      Non Linear Distortion: Less than or equal to 0.5% at 100 dyne / cm sq
      Self Noise (Amplifier): 7 dBA
      Tube Type: GE JAN 5654W (NOS)
      Power Supply: M 900 PSU - 7 Pin Female XLR Input, 3 Pin Male XLR Output
      Size: 200 mm L x 46 mm Dia.
      Weight: 640 g
      Powering Alternative: M 960
      Supply Current: <1mA (120V) 155mA (6V)
      Supplied Accessories: Power supply, wooden mic box, shock mount, 25' 7-pin cable, cardboard case
      Optional Accessories: FC01 R-F-T Series Flight Case
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