Beyerdynamic Opus 51 Electret Condenser Boundary Microphone

Product

Application

Bass drum, piano, grand piano

The Piano is an expressive instrument with a wide dynamic range and multiple sound sources coming from the strings and frame into which it is constructed. All of these subtle sounds and nuances have to be captured to make the Piano sound natural and to transfer the emotion with which it is played. The Opus 51 is purpose built for this type of instrument. Using the ?boundary effect? it captures direct and reflected sounds from all parts of the instrument in perfect balance and at an equal level taking some of the guesswork out of microphone placement. As the Opus 51 effortlessly captures low frequency audio as well as the
high frequency detail it also can be used perfectly for Kick Drums.

Features

Ideal for Kick Drum, Piano, Grand Piano
Linear frequency response
Very small dimensions and solid construction
Phantom powered via pre-amp CV 3 (included)
Optional battery powered with battery compartment ZCV
Supplied with external pre-amp CV 3 and storage bag

Specifications

Transducer type Condenser (back electret)
Operating principle Pressure
Polar pattern Half-spherical
Open circuit voltage at 1 kHz (0dB = 1V/Pa) 7 mV/Pa
Nominal impedance 250 Ω
Load impedance ≥ 1 kΩ
Connector 4-pin LEMO-plug
Weight without cable 85 g
Frequency response 30 - 20,000 Hz
Max. SPL at 1 kHz approx. 131 dB
S/N ratio rel. to 1 Pa approx. 60 dB
A-weighted equivalent SPL approx. 26 dB
Power supply 11 - 52 V phantom power
Current consumption 3.5 mA
Diameter 70 mm
Height 10.5 mm

Features

Specifications