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  • Telefunken R-F-T AR-70 - wood box, psu, cable, and shockmount
  • Telefunken R-F-T AR-70 - case, psu, psu cable, shockmount, wood box
  • Telefunken R-F-T AR-70

Telefunken Elektroakustik R-F-T AR-70

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Product Description

The R-F-T AR-70 STEREO is an advanced stereo version of the popular AR-51 tube condenser microphone.

The AR-70 STEREO is an advanced stereo version of the popular AR-51 tube condenser microphone. It features a matched pair of large diaphragm dual sided TK51D capsules, a New Old Stock (NOS) ECC81 vacuum tube, and a matched pair of German built Haufe T14/1 output transformers that are the same transformers found in ELA M 250/251C12 and R-F-T AR-51microphones.

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.

One of the most unique ways to use the AR-70 STEREO is in "dual mono" mode, which can lead to all kinds of interesting textures for vocals. By running the outputs into two different microphone pre-amplifiers, the user can now have one capsule set up to sound its best on quieter passages in a vocal and the other for louder passages. If the user runs about 10dB more gain on the microphone pre-amplifier for the capsule that is set up to record quiet passages, then both outputs can be recorded separately and blended later; or a compression device can be used on the pre-amplifier that is set up for the quieter passages which will net about 12-15dB of gain reduction as the singer gets louder. These two outputs can be summed and the resulting signal will maintain a relatively constant level while being automatically combined for optimal capture of the performance.

Each AR-70 Stereo microphone comes complete with M970AR power supply, M801 25' dual-shielded TX-7 tube microphone cable, M701 elastic shock mount, a FC70 locking flight case and wooden microphone box.

Type Pressure Gradient Condenser
Capsule TK51D - 26.5 mm Edge Terminated Diaphragm
Tube Type GE ECC81 (NOS)
Transformer Haufe T14/1
Polar Pattern Top Capsule - 9-Pattern Variable including Omnidirectional, Cardioid, and 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 Ω
Maximum SPL (for 1% THD) 128 dB
S/N Ratio 85.5 dBA
Self Noise (Amplifier) 8.5 dBA (Per Channel)
Dimensions / Size 305 mm L x 46 mm Dia.
Weight 866 g
Current Draw from Mains 95 mA
Power Supply M 970AR PSU - 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 XLRs
Shockmount M 701 - Clamping Elastic Mount
Wooden Box WB70AR

Warranty Information

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