AR-70 Stereo

Common name: Telefunken Elektroakustik AR-70 Stereo

Production Status: Discontinued / Vintage

The AR-70 Stereo is a stereo version of the AR-51 vacuum tube microphone. The AR-70 can record X/Y stereo, Mid-Side or dual mono signals. It features two dual 25.5 mm diaphragm, edge terminated and matched TK51D capsules, a NOS ECC81/12AT7 based amplifier and a matched pair of European made T14/1 transformers. The top capsule is fixed cardioid while the bottom one is configured for remote multi-pattern use with 9 variable patterns from omnidirectional to figure of eight. This allows for both X/Y recordings as well as Mid-Side and dual mono. Includes M 970AR power supply, M801 25″ dual shielded TX-7 tube microphone cable, M 701 elastic shock mount, FC70 locking flight case and wooden microphone box.

Electrical Characteristics

Frequency Response
20Hz - 20 kHz
Output Sensitivity
200 mV/Pa
Max SPL
128
Max SPL, THD:
1
Self Noise (CCIR)
dB
Self Noise (DIN/IEC)
8.5 dB-A
Output Impedance
200Ω
Recommended Load
Powering
Supply Current
mA
Alternative Powering
Tube Model
ECC81/12AT7/6201

Switchable Options

Pad
Filter/EQ

Physical Characteristics

Connector
7-pin
Connector notes
Available Colours
Grey
Weight
866 g
Length
305 mm
Min diameter width
Max diameter
46 mm
Depth

Accessories

Included
M 970AR power supply. M801 25" dual shielded TX-7 tube microphone cable. M 701 elastic shock mount. FC70 locking flight case. Wooden microphone box.
Optional