Roswell Pro Audio Mini K47
Cardioid Condenser Microphone
The Mini K47 is a Cardioid condenser microphone that is “pre-modified” at the factory.
It uses a linear, transformerless circuit based on the Schoeps design. It delivers relatively high sensitivity (18mV/Pa) and low self-noise (13dBA).
The capsule is a K47 style, based on Neumann’s design. It is a true single-backplate capsule, with the characteristic K47 drilling pattern. The diaphragms are made of imported Mylar metallized with gold.
The input capacitor is an upgraded polystyrene type. The JFET is a selected low-capacitance K30A type, rather than the 2SK170 (high capacitance) model found in most condenser microphones. According to Roswell, the lower-capacitance JFET delivers superior performance within this circuit. Each JFET is manually biased at the factory to deliver maximum gain without distortion.
The main signal capacitors are Wima film types, imported from Germany.
The microphone’s DC circuit has been modified to improve the signal-to-noise ratio.
The body sleeve is made of heavy steel.
Each Mini K47 goes through a 7-point test/QC program, including a 24-hour burn-in, an acoustic frequency sweep, and tests for polarity, sensitivity, and noise. A serial numbered, signed QC card is included with each microphone.
The mic ships with a swivel mount and vinyl storage pouch. A shockmount is available separately.
The company also makes matched pairs; the match criteria is 0.5dB in sensitivity, and 1.5dB in frequency response (50–15,000Hz).
Paul Vnuk, Recording Magazine
The Mini K47 is an impressive debut for Roswell Pro Audio. It is not just one of the best entry-level mics money can buy, it is also one of those workhorse mics that will find use in a mic locker forever, regardless of whatever other microphones one owns.
The Mini K47 was rated “Outstanding” by Professional Audio magazine for its price-to-value ratio.
Permalink: Roswell Pro Audio Mini-K47
The mic was released in 2014.
|Pickup Patterns||Pads & Filters|
(18 mV/Pa; 20 - 16,000 Hz)
| Diaphragm diameter: 26mm
Capsule diameter: 34mm
Diaphragm gauge: 3 microns
|n/a||Self-noise: 13.0 dB(A)|
|325g (11.46oz)||150mm (5.91'')||44mm (1.73'')||
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