Sennheiser
Sennheiser e 840
Dynamic, cardioid, handheld vocal stage mic (evolution series); the e 840 S adds a silent on/off switch
Power None: a dynamic mic needs no power. Low output: it needs a lot of preamp gain.
- Type
- Dynamic
- Pattern
- Cardioid
- Sensitivity
- −54 dBV/Pa
- Among 78 dynamics: more output than 47%
- Among 311 mics: more output than 16%
- Rated range
- 40 – 18k Hz
vs 25 handheld dynamics
More output than 29% of 25 handheld dynamics.
Each stripe is one handheld dynamic with a published sensitivity, and each bar counts them; further right means more output. This mic is in blue.
Proximity effect: the bass it gains up close
From the manual (Recording Hacks copy), p. 6.
Titled "Frequency response curve", "0°, 1 m"; drawn as absolute sensitivity (dBV). Room and smoothing not stated.
The manufacturer draws absolute sensitivity (dBV/Pa); shifted here by a constant so 1 kHz is near 0 dB.
Dashed: outside the rated range, or simulated (other angles and distances). Hover or tap the graphs for values.
Polar pattern
From the manual (Recording Hacks copy), p. 6.
Titled "Polar diagram". Each frequency is drawn on one side only (125 to 1000 Hz left, 2000 to 16000 Hz right); the pattern is taken as symmetric. Measuring conditions not stated.
In practice
All specs
| From the manual (Recording Hacks copy) | ||
|---|---|---|
| Sensitivity | −54 dBV/Pa (2 mV/Pa)free field, no load, 1 kHz; ± 3 dB. "2 mV/Pa ± 3 dB"; converted: 20 log10(0.002) = -54.0. The product sheet prints "2mV/Pa at 1 kHz = -54 dB (0 dB = 1V/Pa)". | p. 7 |
| Output impedance | 350 ohmnominal | |
| Rated load impedance | 1000 ohmminimum. "Min. terminating impedance 1 kΩ". | |
| Rated frequency range | 40 Hz to 18 kHz"40.....18,000 Hz"; no tolerance given. | |
| Connector | XLR-3 | |
| Weight | 330 g | |
| Dimensions | 47 × 181 mm"Ø 47 x L 181 mm": diameter × length. | |
| Supplied accessories | MZQ 800 microphone clamp; pouch"Delivery includes": the mic, MZQ 800 microphone clamp, pouch, instructions, warranty certificate. | p. 3 |
| On/off switche 840 S | Silent; can be locked in the on position by turning the screw head 90° | |
| Construction | Rugged metal body, shock-mounted capsule, humbucking (hum compensating) coil | |
| CharacterSennheiser | High output; gentle presence boost; minimal proximity effect; frequency-independent directivity | p. 2 |
| Greatest rejection | About 150° | p. 5 |
| UsesSennheiser | Vocals | p. 8 |
| From the spec sheet (Recording Hacks copy) | ||
| Variants | e 840 (cat. no. 009894); e 840 S with silent on/off switch | p. 1 |
Documents
- e 840 / e 840 S Instructions for usePubl. 04/07, 511659/A01
- e 840 Dynamic Microphone, product sheetCat. No. 009894
Copies kept by Mic Archive (manufacturers move and drop their documents). Each is © Sennheiser, unchanged, with its original address.
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