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continuously variable pattern selectionSoundelux E47

Multi-Pattern Tube Condenser Microphone

The E47 was designed to reproduce the best aspects of the Neumann U47. It is a tube condenser, and a lookalike to the U47, although there are differences (both cosmetic and under the grille).

The original E47 mic had two gold-sputtered 6-micron diaphragms, but in its default configuration (as shipped from the factory) only the front membrane was active, fixing the mic in cardioid mode. A switch mounted on a circuit board inside the microphone brought the rear diaphragm into the circuit, and enabled the continuously-variable pattern selector built into the power supply. The E47 User Manual (see sidebar link) contains instructions for switching the mic into multipattern mode.


The JAN submini [tube in the E47] has the same input impedance as a VF14 [tube used in the U47] but a little less input capacitance, resulting in a 1dB bump in the E47’s response around 10 kHz, compared to the original U47’s response.

E47The E47 shipped in a wooden box, with dedicated power supply, cable, and shockmount.

The mic carried a 3-year parts and labor warranty. When available, it retailed for $3950.

In 2005, Soundelux replaced the E47 with the E47C.

The Soundelux E47 is also known as: E-47.

The mic was released in 2001.


Pickup Patterns Pads & Filters
Omnidirectional (16.5 mV/Pa; 20 - 20,000 Hz)
Cardioid (16.5 mV/Pa; 20 - 20,000 Hz)
Bidirectional (16.5 mV/Pa; 20 - 20,000 Hz)
Capsule Dimensions Impedance SPL/Noise
Diaphragm diameter: 26mm
Diaphragm gauge: 6 microns
n/a Max SPL: 134 dB
Weight Length Max Diameter Interface(s)
646g (22.79oz) 227mm (8.94'') 64mm (2.52'')
  • 3-pin XLR male (1)
Power Specifications
  • Includes tube power supply

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