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Telefunken AR-51

The Telefunken AR-51 provides a smooth mid-range, open top end, and solid, well-balanced low frequency and 6 polar pattern stages.

The R-F-T AR-51 is a high quality tube condenser that draws inspiration from the classic C12 and ELA M 251E microphones. It provides a smooth mid-range, open top end, and solid, well-balanced low frequency translation.

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 AR-51 features the amplifier electronics of a C12 and ELA M 251E and pairs them with a dual sided large diaphragm TK51D capsule. At the core of the R-F-T AR-51 amplifier is a NOS ECC81 vacuum tube, which is coupled with the same German built Haufe T14/1 output transformer found in the C12 and ELA M 251E.

As of October 2012's Audio Engineering Society conference, the AR-51 and AR-70 STEREO microphone now include the TK51D capsule, a 34mm dual-membrane, edge-terminated design. This larger surface area provides an extended low end and a smoother, more open high end in comparison to the original TK67D. The implementation of this new capsule brings the AR-51 and AR-70 STEREO sonically closer to the ELA M 251E and C12 that employ the legendary edge-terminated CK12 capsule.

In use, the AR-51 is a fantastic utility microphone. Its smooth mid-range, open top end, and solid, well-balanced low frequency translation make it a great choice on anything from vocals to drums and percussion to acoustic guitar to saxophone.

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 AR-51 microphone comes complete with M901 power supply, M801 25' dual-shielded TX-7 tube microphone cable, M701 elastic shock mount and wooden microphone box.
Specifications
  • Type : Condenser Pressure Gradient
  • Capsule : TK-51D
  • Frequency Range : 20Hz / 20kHz
  • Polar Pattern : Omni, Cardioid, Figure 8 with 6 intermediate stages
  • Sensitivity : 13 mV/pa +/- 0.5 dB
  • THD at 1kHz at 1Pa : <0.2%
  • Output Impedance : <250 ohms
  • Maximum SPL : 128dB
  • Non Linear Distortion : Less than or equal to 0.5% at 100 dyne / cm sq
  • Self Noise : 8dBA
  • Tube Type : GE 6201
  • Power Type : Dedicated Power Supply with polar pattern selector
  • Size : 9 1/2" (241mm) length x 1 3/4" (44.45mm) diameter
  • Weight : 27oz (765g)
  • Supply Current : <1mA (120V) 140mA (6V)
  • Connected Via : XLR-7 (F), XLR-3 (M) output
  • Supplied Accessories : Power supply, wooden mic box, clasping shock mount, 25' Accusound dual-shielded cable, cardboard case
  • Optional Accessories : FC01 R-F-T Series Flight Case
  • Reviews
    5.0
    Matt Stephanson
    Vancouver
    September 27, 2015
    Beautiful Vox Mic
    Five stars because firstly, it sounded great on the first take we sang through it. Very forgiving polar pattern and very workable mic. The overall character really suited an Alto opera singer with a massive clarion voice. She usually has to back off more on higher, louder passages, but this mic takes intensity very well, allowing the intimate focused tone to continue. I have tried this through a DAV, Vintech 573, and Hv3, and this microphone just sits very well in my mixes. Upper end has a touch of sparkle which suits vocals (depending on style) very well. The cliche is true: not much EQing needed, but takes it well when you do.

    Secondly, for the price, it has put a huge smile on my face. It is in the same camp sonically to some usually heavy hitters.
    Price *
    $2960.00
    $2517.00
    Open Box
    $2256.00
    This special bundle includes
    Free shipping in Canada. Conditions
    * With purchase of new equipment only
    Rental
     
    Price/Day
    Total
    1 Day
    $54.00
    $54.00
    3 Days
    $36.00
    $108.00
    5 Days
    $27.00
    $135.00
    12 Days
    $18.00
    $216.00
    28 Days
    $11.50
    $322.00
    Additional information
    For more information about the AR-51, please visit the website of Telefunken
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