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HomepageMicrophonesTube Microphones › Telefunken AR-70 Stereo
Telefunken AR-70 Stereo

The Telefunken AR-70 Stereo is an advanced stereo version of our popular AR-51 tube condenser microphone. Easily configure your microphone to any coincident mic technique.

Sonic Characteristic
The AR-70 Stereo features a matched pair of large diaphragm dual sided TK51D capsules (the same newly implemented edge-terminated type 26.5 mm dual-membrane design) found in the AR-51), a New Old Stock ECC81 / 12AT7 vacuum tube (the same tube found in the AR-51), and a matched pair of European made custom wound T14/1 output transformers (the same transformers found in ELA M 250/251 and AR-51 microphones) all in a single, easy to setup system.

Microphone Design
The AR-70 Stereo includes one fixed cardioid capsule on the bottom, and on top, a capsule wired for remote multi-polar pattern capabilities. This allows the microphone to perform multiple stereo recording techniques, as well as a standard single channel monophonic recording, all in one package. In stereo mode, the AR-70 Stereo can be set up in a standard X/Y configuration, with each capsule orientated 90 degrees away from each other, resulting in a perfectly co-incidental pair. With the option of the multi-pattern functionality of the top capsule, the microphone can also be used in Mid-Side (M/S) technique, where the lower capsule is fixed in cardioid, and the upper capsule is rotated 90 degrees and set to the Figure 8 polar pattern.

Construction
The AR-70 Stereo's rotating steel headgrille mesh and brass base ring are finished in nickel plating, giving the microphone a unique look and vibe. The aluminum body tube is finished in a grey protective hard coat and is engraved with the microphone model name and serial number. An antique nickel plated TELEFUNKEN diamond logo badge is featured on the front of the microphone. The power supply is also finished in a grey protective coating.

Accessories
Each AR-70 Stereo microphone comes complete with M 970AR power supply, M 801 25' dual-shielded TX-7 tube microphone cable, M701 elastic shockmount, a FC70 locking flight case and wooden microphone box.
Specifications
  • Type: Stereo Pressure Gradient Condenser
  • Capsule: TK51D - 26.5 mm Edge Terminated Diaphragm
  • Tube Type: National 12AT7WA (NOS)
  • Transformer: Haufe T14/1
  • Polar Pattern: Top Capsule - 9-Pattern Variable including Omnidirectional, Cardioid, Bidirectional:
  • Bottom Capsule: Cardioid
  • Frequency Range: 20 Hz - 20 kHz, ± 3 dB
  • Sensitivity: 13 mV/Pa ± 1 dB
  • THD at 1kHZ at 1Pa (Amplifier): < 0.2% (Per Channel)
  • Output Impedance: 250
  • Maximum SPL (for 1% THD): 128 dB
  • S/N Ratio: 85.5 dBA
  • Self Noise (Amplifier): 8.5 dBA (Per Channel)
  • Dimensions: 305 mm L x 46 mm Dia
  • Weight: 866 g
  • Current Draw from Mains: 95 mA
  • Power Supply: M 970AR - 7 Pin Female XLR Input, Two 3 Pin Male XLR Outputs, Polar Pattern Selector
  • Cable: M 801 - 25 ft Accusound TX-7 Cable, 7 Pin Male & Female XLR's
  • Wooden Box: WB70AR
  • Flight Case: FC70 - Vintage Style Locking Combination Flight Case
  • Reviews
    Price
    $4540.00
    $3853.00
    Free shipping in Canada. Conditions
    Additional information
    For more information about the AR-70 Stereo, please visit the website of Telefunken
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