Active Stereo Ribbon Microphone 
The AEA R88A Active Stereo Ribbon Microphone with custom toroid transformers captures sound as your ears hear it with an honest, open tonality. The R88A effortlessly records the sonic intricacies of drums, strings, piano, and other instruments that produce complex transients. 
The extra 12 dB of transformer gain is advantageous when recording quiet sources like vocals or soft acoustic guitars. The active impedance buffers help prevent noise interference on long cable runs or when operating near large lighting rigs. The R88A requires standard 48V phantom power to operate. 
 
Product Features/Specifications: 
Same award-winning stereo perspective as the passive R88mk2 
Phantom powered (48 V) version of AEA's classic R88mk2 with 12 dB more 
transformer gain 
Compatible with any preamp and input impedance 
Fast, accurate transient reproduction 
Stereo ribbon microphone that offers a natural sound 
Captures amazingly precise stereo imagery with a single mic 
Larger-than-normal ribbon elements handle high SPLs with ease 
Figure-8, Blumlein Configuration (90 degrees) polar pattern 
141 dB max SPL 
 
Technical Specifications:  
Link  
https://www.aearibbonmics.com/wp-content/uploads/2018/03/AEA-R88-Owners-Manual-Web.pdf  
 
Operating Principle: Pressure gradient transducer 
Directional Pattern: Bi-directional 
Frequency Range: < 20 Hz to 20 kHz 
Maximum SPL: 141 dB SPL  
Sensitivity: 7.4 mV/Pa (-42.6 dBV) 
Output Impedance: 92 Ω broadband 
Load Impedance: 1.0 kΩ or greater 
Phantom power:  P48 phantom power, 7mA 
Polarity: Pin 2 and 4 high for positive pressure at the front of the microphone. 
Off Axis Response: Bidirectional 
Horizontal: Level changes with angle, frequency response is consistent, -35dB null at 90º / 270º 
Vertical: Level changes with angle, reduced HF response above and below 0º / 180º, -25dB null at 90º / 270º 
Transducer Element Material: Pure aluminum corrugated ribbon 
Thickness: 1.8 µm 
Width: 0.185 in (4.7 mm) 
Length: 2.35 in (59.7 mm) 
 
Microphone Dimensions 
Height: 15 in (38.1 cm) 
Width: 3 in (7.62 cm) 
Weight: 2 lb 9.8 oz (1.19 kg) 
Shipping weight: 5 lb 3 oz (2.36 kg) 
Connector: XLR-5M, includes breakout cable - 2 XLR-3M 
Accessories Included: 
Storage/shipping case, swivel adapter, 
custom protective mic sleeve, user manual