Telefunken Elektroakustik CU-29 Copperhead Tube Microphone

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Product Code: 9999-14668
Telefunken CU-29
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Telefunken Elektroakustik CU-29 Copperhead Tube Microphone

The Telefunken Elektroakustik CU-29 Copperhead Tube Microphone offers a warm, well-rounded low end, accented by a delicate and intimate 'air' in the high end.

Telefunken Elektroakustik CU-29 Copperhead Tube Microphone Details

The Telefunken Elektroakustik CU-29 Copperhead Tube Microphone offers a warm, well-rounded low end, accented by a delicate and intimate 'air' in the high end. The clarity and detail are unsurpassed by any other microphones near its surprisingly low price range. The CU-29 is part of Telefunken Elektroakustik's R-F-T Series. Telefunken Elektroakustik microphones are known for their beautifully detailed reproduction and historic accuracy. Because Telefunken Elektroakustik's Diamond Series microphones are meticulously made to historic detail with no expense spared, that also makes them rather expensive for the average small studio or home enthusiast. With this in mind, the R-F-T Series of microphones was created.

The R-F-T line of tube condenser microphones utilizes American designed electronics in conjunction with New Old Stock vacuum tubes and standardized parts from overseas manufacturers. Just like the Diamond Series, all R-F-T microphones are hand-built in Telefunken Elektroakustik's South Windsor, CT facility. With this line, Telefunken Elektroakustik have been able to provide a lower cost alternative to more expensive microphone systems, without sacrificing the qualities that you would expect from a Telefunken Elektroakustik microphone.

With the CU-29 "Copperhead," Telefunken Elektroakustik went even further to ensure quality while working toward the goal of providing Telefunken Elektroakustik craftsmanship that just about everyone can afford. No detail was left unattended. 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 R-F-T CU-29 "Copperhead" features a NOS 6AK5W Telefunken tube and a Lundahl LL1935 output transformer. Being a "cardioid only" microphone, the CU-29 "Copperhead" employs a single-membrane version of the large diaphragm capsule used in the AR-51 and AK-47 MkII microphones, which undergoes rigorous testing in Telefunken Elektroakustik's laboratory prior to installation. Further quality control is ensured again during final testing and burn-in of the microphone, all to give you the ease of many trouble free years of use with your R-F-T microphones.

Sonically, the CU-29 "Copperhead" is a remarkably hi-fidelity microphone with a "present" but not "harsh" character, with clarity and detail, but entirely devoid of the upper mid-range bite usually found in microphones in this price range.

The microphone provides a warm, clear low end complemented by a smooth high end, with a delicate and intimate "air" to it, typically found only in microphones many times the price. Because it is not a "re-creation" (or even a variation on a theme) the end result is a detailed yet unique tone, with character and its own rich sonic texture.

The CU-29 "Copperhead" was developed from the ground up in Telefunken Elektroakustik's South Windsor, Connecticut facility by their in-house design team and the aid of some of the industry's most knowledgeable and respected consultants. The CU-29 "Copperhead" delivers top shelf Telefunken Elektroakustik quality at a price nearly any dedicated engineer, musician, or enthusiast can afford.

Telefunken Elektroakustik CU-29 Copperhead Tube Microphone Includes

  • Modern Power Supply
  • Shock Mount
  • Wooden Box
  • 7-pin Microphone Cable

Telefunken Elektroakustik CU-29 Copperhead Tube Microphone Specifications

  • Type: Condenser Pressure Gradient
  • Capsule: Single Sided Gold Sputtered Membrane
  • Frequency Range: 20Hz / 20kHz
  • Polar Pattern: Cardioid
  • Sensitivity: 14MV/Pa = -37dB (0dB = 1v/Pa) -10bD
  • Impedance: 200 ohms stock
  • SPL: 138 dB
  • Non Linear Distortion: Less than or equal to 0.5% at 100 dyne / cm sq
  • Equivalent Noise: 16 dB (a-weighted)
  • Tube Type: TELEFUNKEN new old stock EF-95
  • Power: Dedicated Power Supply
  • Weight: 24.7 oz (690g)
  • Size: 8" (203.2) Length x 1 3/4" (44.45mm) Diameter

What We Think

"The Telefunken Elektroakustik CU-29 Copperhead Tube Microphone makes the immediate impression of being one of those microphones that simply 'works' for lots of different instruments. It's sound is accommodating without being sterile. In fact, it's just got that sound that flatters instruments and voices in the way you would hope a tube-microphone will when you reach for one. The Telefunken Elektroakustik CU-29 Copperhead works well for minimalist drum recording - just it as a mono-overhead together with a kick-mic. It presents a good balance of everything - never being dominated by the crash of a cymbal over the level of the snare, etc. There's not an overwhelming amount of highs; in fact, quite the opposite. It's fairly dark and throaty, in fact. And the lows, while still rich and well presented, didn't get overwhelmed by the kick drum in the small-ish drum room. So, it's body is taught - but that is a good thing for minimizing the need for stripping things to help them get a not to step all over everything else in it's company. There is just an enjoyable depth and character that the mic gives that wouldn''t there otherwise... It definitely added some ear-candy while still providing a nicely representative sound. The Telefunken Elektroakustik CU-29 Copperhead can really work as a valuable member of your regular recording kit."

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