The AK-47 MkII is a remarkably hi-fidelity microphone that is reminiscent of a cross between the historic M49 and U47/48 microphones. The result is a microphone with superior high frequency detail and a rich, full low end response.

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The R-F-T AK-47 MkII is a remarkably hi-fidelity microphone that is reminiscent of a cross between the historic M49 and U47 / U48 microphones. The result is a microphone with superior high frequency detail and a rich, full low-end response.

TELEFUNKEN Elektroakustik is well known for the historic recreation microphones found in the Diamond Series, which are meticulously made to historic detail with no expense spared. As such, these microphones become 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 Series of tube condenser microphones utilizes American designed electronics in conjunction with New Old Stock (NOS) vacuum tubes and standardized parts from overseas manufacturers. Just like the Diamond Series, all R-F-T Series microphones are hand-built in TELEFUNKEN Elektroakustik's South Windsor, Connecticut facility. With this line, TELEFUNKEN Elektroakustik is able to provide a lower cost alternative to more expensive microphone systems, without sacrificing the qualities that would be expected from a TELEFUNKEN Elektroakustik microphone.

The amplifier found in the AK-47 MkII features a new proprietary circuit designed around a NOS EF-732 / 5840W vacuum tube, and a custom output transformer that is an exact replica of the historic BV8 transformer found in new TELEFUNKEN Elektroakustik and vintage U47 and U48 microphones. The dual sided large diaphragm TK67D capsule undergoes rigorous testing in our laboratory prior to installation in the AK-47 MkII, and again during final testing and burn-in of the microphone.

The EF-732 / 5840W tube is very similar to the legendary AC-701 tube in that is provides a velvety character to the overall tone of the microphone. The layout of the circuit board features broader traces for superior current on demand capability, which enhances the low frequency and transient response capability of the amplifier. Additionally, this layout helps minimizes noise and cross talk between components. When this tube and circuit is coupled with the historically accurate recreation of the BV8 transformer, the AK-47 MkII reproduces the qualities of the classic microphones it was based upon.

Sonically, the AK-47 MkII is a remarkably hi-fidelity microphone with superior high frequency detail and a rich, thunderous low end that excludes the upper mid-range frequency bump often found in microphones in this price range. Instead, it has a delicate and intimate air that is usually found in more expensive microphones. The AK-47 MkII serves as a great microphone for vocals, electric guitar, acoustic and electric bass, and horns.

The remote pattern selector, located on the power supply, provides 9 different polar patterns, giving the user a myriad of choices for how to record the source sound in a manner that will best complement their production.

Each AK-47mkII microphone comes complete with M901 power supply, M801 25' dual-shielded TX-7 tube microphone cable, M701 elastic shock mount and wooden microphone box.


Please contact your favorite TELEFUNKEN Elektroakustik reseller to demo or purchase the TELEFUNKEN AK-47 MkII. For reseller referrals, please feel free to email:

Reviews / Press

  Telefunken | USA™ Introduces R-F-T AK47 Tube Microphone

TELEFUNKEN Factory Service - TELEFUNKEN offers restoration services for all TELEFUNKEN microphones. We do not sell any internal microphone housings or capsules without factory service performed in-house. Call TELEFUNKEN Elektroakustik for a return authorization number and to discuss work needed on your microphone system.

Please call 860-882-5919 for more information.

TypePressure Gradient Condenser
CapsuleTK67D - 25.4 mm Center Terminated Diaphragm
Tube TypePhilips & Raytheon JAN EF732 / 5840W (NOS)
TransformerCustom Wound Telefunken BV8
Polar Pattern9-Pattern Variable including Omnidirectional, Cardioid, and Bidirectional
Frequency Range20 Hz - 20 kHz, ± 3 dB
Sensitivity16.5 mV/Pa ± 1 dB
THD at 1kHz at 1Pa (Amplifier)< 0.3%
Output Impedance200 Ω
Maximum SPL (for 1% THD)125 dB
S/N Ratio83.5 dBA
Self Noise (Amplifier)10.5 dBA
Dimensions / Size240 mm L x 46 mm Dia.
Weight769 g
Current Draw from Mains50 mA
Power SupplyM 901 PSU - 7 Pin Female XLR Input, 3 Pin Male XLR Output, Polar Pattern Selector
CableM 801 - 25 ft Accusound TX-7 Cable, 7 Pin Male & Female XLRs
ShockmountM 701 - Clamping Elastic Mount
Wooden BoxWB01
Flight CaseHC01 - Hard Shell Protective Case (not included), FC10S for Stereo Set

Compare this mic with other TELEFUNKEN Elektroakustik mics.

Download the PDF AK-47-MkII-Cutsheet





Accessories for the  AK-47 MkII  include:

M 901S

Dual Power Supply for (2) AK-47 MkII, AR-51 or M16 MkII with (2) Polar Pattern Switches


M 901

Power Supply for AK-47 MkII, AR-51 or M16 MkII with Polar Pattern Switch



R-F-T series flight case fits AR-51, AK-47, ELA M 260, CU-29



Microphone Wooden Box with Diamond Logo for AK-47 MkII, AR-51, M16 MkII


M 700

Base Threaded Shockmount for CU-29


M 801

25' Accusound TX-7 Dual-Shielded Cable with Neutrik 7-Pin XLR Connectors for all R-F-T Series Microphones



Combination locking flight case fits C12 & R-F-T STEREO SETS


M 901A

Power Supply Upgrade for AK-47 MkII, AR-51, or M16 MkII



Replacement head grill for the AK-47 mkII microphone, finished in chrome.


Phillips Raytheon 5840

5840 replacement vacuum tube for the TELEFUNKEN AK-47mkII and ELA M 260 microphones



Hard shell flight case for the AR-51, AK-47mkII and M16mkII tube microphone systems. Virtually indestructible, TELEFUNKEN Elektroakustik's new rugged hard case has innovative features for unmatched strength and durability. It is o-ring sealed and waterproof up to a depth of 3 feet. It's airtight, and built to withstand the most extreme conditions. These cases are great for airline travel with an automatic pressure equalization valve. They include spring release latches lock in place as well as lock holders which are great for use with pad locks for added security. Inside the cases customized foam offers an extremely tailored, custom fit for the CU-29 microphone system.



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