Earthworks Audio
Earthworks SR40V
Handheld hypercardioid condenser vocal mic (prepolarised), transformerless, 40 kHz response, wire-mesh windscreen
Approximate Some readings for this mic are uncertain; see the graphs.
Power Phantom 24-48 V.
- Type
- Condenser (electret)
- Pattern
- Hypercardioid
- Sensitivity
- −40 dBV/Pa
- Among 204 condensers: more output than 33%
- Among 311 mics: more output than 53%
- Self-noise
- 15 dB(A)
- Among 258 condensers: quieter than 53%
- Among 272 mics: quieter than 54%
- Max SPL
- 145 dB SPL
- Among 277 condensers: takes louder sound than 80%
- Among 343 mics: takes louder sound than 78%
- Rated range
- 20 – 40k Hz
- Released
- 2011
vs 14 handheld condensers
More output than 100% of 14 handheld condensers.
Each stripe is one handheld condenser with a published sensitivity, and each bar counts them; further right means more output. This mic is in blue.
vs 12 handheld condensers
Quieter than 100% of 12 handheld condensers.
Each stripe is one handheld condenser with a published self-noise, and each bar counts them; further right means quieter. This mic is in blue.
vs 14 handheld condensers
Takes louder sound than 46% of 14 handheld condensers.
Each stripe is one handheld condenser with a published max SPL, and each bar counts them; further right means it takes louder sound. This mic is in blue.
Proximity effect: the bass it gains up close
From the manual (Recording Hacks copy), p. 2.
Fig. 2 "Frequency Response (Typical) of SR40V" in the 2011 owner's manual; relative dB, 3 dB per division, 1 Hz to 100 kHz shown. Room and smoothing not stated. Dashed line, labelled "1m (3.3')"; drawn from about 50 Hz until it joins the 30 cm line.
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
"Polar Response" on page 2 of the 2020 data sheet; full circle, rings every 5 dB (outer ring 0 dB, centre -30 dB). Measuring conditions not stated. The 2011 manual's Fig. 4 shows the same four frequencies.
Approximate: reading error up to about 1 dB.
In practice
All specs
| From the spec sheet | ||
|---|---|---|
| Sensitivity | −40 dBV/Pa (10 mV/Pa)"10mV/Pa (-40dBV/Pa)"; the same in all four documents. | p. 2 |
| Self-noise | 15 dB(A)also 20 dB(A), 2022 user guide; also 22 dB(A), 2011 manual and data sheet. "15dB (A weighted)". The 2022 user guide says "20dB SPL (A weighted)", the 2011 manual "22dBA equivalent". | |
| Max SPL | 145 dB SPL"145dB SPL". The 2011 sheet: "up to 145 dB producing no more than 3% THD". | |
| Signal-to-noise ratio | 79 dBA-weighted. "79dB A-weighted" (94 dB SPL minus the 15 dB noise). | |
| Output impedance | 65 ohmbalanced, between pins 2 and 3; also 100 ohm, 2011 manual and data sheet: balanced, 50 ohm each pin. "65Ω bal. (between pins 2 & 3 )". | |
| Rated load impedance | 600 ohmminimum, balanced between pins 2 and 3 | |
| Rated frequency range | 20 Hz to 40 kHzalso [30, 40000], ±2 dB at 30 cm, 2011 data sheet; ±1.5 dB at 30 cm, 2011 manual. "20Hz to 40kHz", no tolerance given. | |
| Powering | phantom 24-48 V"24-48V Phantom, 10mA". The 2011 documents say 48 V phantom. | |
| Current draw | 10 mA | |
| Connector | XLR-3 male (pin 2 hot)"XLR-3 (pin 2+)". | |
| Weight | 225 galso 363, 2022 user guide (".80lb (363g)") and 2011 manual ("12.8 oz (363g)"). "0.5 lbs. (225g)"; the 2011 data sheet says the same. | |
| Dimensions | 184 × 55.3 mmLength x maximum diameter of the tapered body: "7.25 in. (184 mm)", "1.95 in (55.3mm) max dia."; "0.97 in (27.5mm) min dia.". | |
| ApplicationsEarthworks | Vocals on stage or in the studio, voice-overs, instruments; "Three singers can sing on one SR40V" | p. 1 |
| From the spec sheet (Recording Hacks copy) | ||
| Capsule | single capsule, single membrane, back-electret"of a single capsule, single membrane design". | p. 1 |
| Finish | black metal body, wire-mesh windscreen"The microphone shall be made of metal with a black finish"; "a wire-mesh windscreen". | |
| Impulse response | Rise time no longer than 25 µs; total settling time, rise time included, no longer than 120 µs | |
| Polar characteristics | "uniform in all planes to form a hypercardioid of revolution"; uniform frequency response at 0°, 45° and 90° | |
| From the Recording Hacks page | ||
| Released | 2011 | |
| From the user guide | ||
| Supplied accessories | microphone clip; protective fabric bag"1 SR40V Microphone, 1 Microphone Clip, 1 Protective Fabric Bag". | p. 2 |
| From the manual (Recording Hacks copy) | ||
| Patent | US Patent No. 6,091,829 | p. 2 |
Documents
- SR40V Vocal Microphonedata sheet V1.1
- SR40V Handheld Condenser Vocal Microphoneuser guide, May 2022
- SR40V User's ManualVersion 1, July 6, 2011
- SR40V 40kHz Hypercardioid Vocal Microphonedata sheet, "Preliminary Information", 2011
- Earthworks Audio SR40V | RecordingHacks.com
Copies kept by Mic Archive (manufacturers move and drop their documents), unchanged, with their original addresses. Each is © its publisher.