Electro-Voice
Electro-Voice RE27N/D
Variable-D end-address cardioid dynamic for broadcast announce and voice-over, with neodymium magnet and three filter switches
Approximate Some readings for this mic are uncertain; see the graphs.
Power None (passive). Low output: it needs a lot of preamp gain.
- Type
- Dynamic
- Pattern
- Cardioid
- Sensitivity
- −52 dBV/Pa
- Among 78 dynamics: more output than 75%
- Among 311 mics: more output than 26%
- Rated range
- 45 – 20k Hz
vs 44 end-address dynamics
More output than 86% of 44 end-address dynamics.
Each stripe is one end-address dynamic with a published sensitivity, and each bar counts them; further right means more output. This mic is in blue.
Instruments sources recommend it for most
Proximity effect: the bass it gains up close
From the spec sheet, p. 2.
Titled "Frequency Response"; "RESPONSE IN dB", 5 dB per division, no 0 dB marked. Distance, anechoic or not and smoothing are not stated.
Dashed: outside the rated range, or simulated (other angles and distances). Hover or tap the graphs for values.
Polar pattern
From the spec sheet, p. 2. Approximate
Titled "Polar Response", "Scale is 5 decibels per division"; two plots, 125 to 500 Hz and 1 to 10 kHz; 0° at the top, rings unlabelled. Measuring conditions not stated.
Approximate: some frequencies are identified by reasoning, not by the legend: 250 Hz, 500 Hz, 3k Hz.
In practice
All specs
| From the spec sheet | ||
|---|---|---|
| Capsule | N/DYM neodymium-alloy magnet, reinforced diaphragm dome, hum-bucking coilGeneral description. | p. 1 |
| Sensitivity | −52 dBV/Pa (2.52 mV/Pa)open circuit, 1 kHz; also −50.2 dBV/Pa, 3.1 mV/Pa in the 2004 data sheet (Rev D). "2.52 mV/pascal = 1 kHz"; converted. Rev D (2004) gives 3.1 mV/Pascal, both pages. | |
| Output impedance | 150 ohmbalanced | |
| Rated frequency range | 45 Hz to 20 kHzThe A&E specification on page 2: "45-20,000 Hz". | |
| Powering | none (passive)Not stated; a dynamic microphone ("self-generating transducer"). | |
| Switches | sharp bass cut: off, on; gentle bass roll-off: off, on; treble cut: off, onThree recessed slide switches (SW1-SW3 in the wiring diagram; which is which is not said). A&E specification: one tilts the bass "down 6 dB from 250 to 100 Hz", one gives "a gentle roll-off of 12 dB from 1,000 to 100 Hz", one "shall decrease the high-frequency rise by 3 dB". Page 1 calls the first "a sharp low-frequency cut at 200 Hz". Switch names are ours. | p. 2 |
| Connector | XLR-3 maleNot stated by the manufacturer: The wiring diagram shows pins 1-3; polarity "Pin 2 will be positive referenced to Pin 3". | |
| Weight | 709 gnet. "709 g (1 lb, 9 oz)"; shipping weight 1,446 g. | p. 1 |
| Dimensions | 216.7 × 54.4 mmLength × widest diameter; body diameter 49.2 mm. | |
| Finish | Satin nickel, steel case | |
| Supplied accessories | 81715 stand clampFurnished. Optional: 309A shock-mounted stand adapter. | |
| Power level | -51 dB at 1 kHz (0 dB = 1 mW/Pascal) | |
| Hum pickup level, typical | -130 dBm (60 Hz / 1 millioersted field) | |
| Polarity | Pin 2 will be positive referenced to pin 3 with positive pressure on diaphragm | |
| Variable-D | Continuously Variable-D design reduces bass-boosting proximity effect | |
| ResponseA&E specification | Essentially flat from 80 to 2,000 Hz with a 6 dB rise from 2,000 to 16,000 Hz, switches flat | p. 2 |
| Blast filter | Integral blast and wind filter over each acoustic opening; part of it shock-mounts the transducer | p. 1 |
| Optional accessories | 309A shock-mounted stand adapter, for floor stand or recording boom | |
| Part number | 16271446 | p. 2 |
Documents
- RE27N/D Variable-D N/DYM Dynamic Cardioid Microphone, engineering data sheetPart Number 534679 Rev F
- RE27N/D engineering data sheetPart Number 534679 Rev D
Copies kept by Mic Archive (manufacturers move and drop their documents), unchanged, with their original addresses. Each is © its publisher.
Recommended for
By recording guides, engineers and mic makers, for this mic or an earlier version of it.