Electro-Voice
Electro-Voice 635A
Dynamic, omnidirectional, steel-cased handheld interview mic (635A fawn beige, 635A/B black)
Power None (passive). Low output: it needs a lot of preamp gain.
- Type
- Dynamic
- Pattern
- Omni
- Sensitivity
- −57.1 dBV/Pa computed
- Rated range
- 80 – 13k Hz
Curve transparency
Instruments sources recommend it for most
Angle
Distance
Proximity effect: the bass it gains up close
From the spec sheet, p. 2.
Titled "Frequency Response"; relative dB with a "5 dB" mark but no 0 dB label. Distance, room and smoothing not stated.
Dashed: outside the rated range, or simulated (other angles and distances). Hover or tap the graphs for values.
In practice
All specs
| From the spec sheet | ||
|---|---|---|
| Capsule | Acoustalloy diaphragm, Alnico V magnet, four-stage pop and dust filter, internal shock absorberPop filter and shock absorber p. 1; Alnico V and the "nonwelded" magnetic circuit in the Architects' and Engineers' Specifications (p. 2). Acoustalloy named in the old sheet, p. 1. | p. 1 |
| Sensitivity | −57.1 dBV/Pa (1.4 mV/Pa)open circuit voltage, 1 kHz. Not stated by the manufacturer: Stated as "1.4 mV/Pascal"; converted: 20·log10(0.0014) = -57.1. | |
| Output impedance | 150 ohmlow impedance; "will match 50-, 150- and 250-ohm inputs". Matching inputs from p. 2. | |
| Rated frequency range | 80 Hz to 13 kHz"80 Hz to 13,000 Hz (see chart)". | |
| Powering | none (passive)"Self generating, no powering required". | |
| Connector | XLR-3 maleNot stated by the manufacturer: Polarity "Pin 2 positive, referenced to pin 3"; the old sheet asks for a built-in connector "similar or equivalent to the Switchcraft A3M" (p. 2). | |
| Weight | 170 gnet | |
| Dimensions | 151 × 36 mmLength × diameter; the drawing (p. 2) shows a 19 mm handle. | |
| Finish | 635A fawn beige; 635A/B semi-gloss black | |
| Supplied accessories | 311 stand adapterThe old sheet lists a 312A stand adapter and a 15 ft (4.6 m) cable with a Switchcraft A3F connector. | |
| Case | Steel ("provides magnetic shielding and strength") | |
| Polarity | Pin 2 positive, referenced to pin 3, with positive pressure on the diaphragm | |
| Output level | -55 dB (0 dB = 1 mW/10 dynes/cm²) | p. 2 |
| Optional accessories | 314E windscreen; 422A desk stand | p. 1 |
| Shipping weight | 454 g (16 oz), single mic | |
| From the spec sheet (Recording Hacks copy) | ||
| EIA sensitivity rating | -149 dB | p. 1 |
| Cableold sheet | 15 ft (4.6 m), 2-conductor shielded broadcast cable, synthetic rubber jacket, Switchcraft A3F connector | |
Documents
- 635A & 635A/B Dynamic Omnidirectional Microphones, engineering data sheetF01U179687 Rev 07
- 635A Omnidirectional Dynamic Microphone, Engineering Datapart number 532813
Copies kept by Mic Archive (manufacturers move and drop their documents). Each is © Electro-Voice, unchanged, with its original address.
Recommended for
By recording guides, engineers and mic makers, for this mic or an earlier version of it.
Other mics
More from Electro-Voice
- Electro-Voice RE20
- Electro-Voice N/D468
- Electro-Voice RE15
- Electro-Voice RE320
- Electro-Voice ND76
- Electro-Voice RE16
- Electro-Voice RE27N/D
- Electro-Voice RE500