Heil Sound
Heil PR 40
Large end-address dynamic for broadcast, podcast and voice-over, also kick drum
Power None (passive). Low output: it needs a lot of preamp gain.
- Type
- Dynamic
- Pattern
- Cardioid
- Sensitivity
- −53.9 dBV/Pa computed
- Max SPL
- 148 dB SPL
- Among 36 dynamics: takes louder sound than 91%
- Among 343 mics: takes louder sound than 87%
- Rated range
- 28 – 18k Hz
vs 19 end-address dynamics
Takes louder sound than 83% of 19 end-address dynamics.
Each stripe is one end-address dynamic with a published max SPL, and each bar counts them; further right means it takes louder sound. 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.
Untitled graph; legend "0 Deg" and "180 Deg". The dB axis is labelled -40 to -90 with no unit (values kept as printed; they match the stated output level of -53.9 dB at 1 kHz). 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 | 1 inch dynamic element, large low-mass aluminium voice coil, neodymium iron boron magnet, hum-bucking coil"features a 1" dynamic element". The 2010 sheet says "1 1/8" diameter dynamic", a "large low-mass aluminum voice coil" and a neodymium, iron and boron magnet (p. 1). | p. 2 |
| Sensitivity | −53.9 dBV/Pa1 kHz. Not stated by the manufacturer: "Output Level -53.9 dB @ 1 kHz", no reference given; taken as dB re 1 V/Pa. The response graph agrees: the 0° curve sits near -54 at 1 kHz on an axis labelled -40 to -90. | |
| Max SPL | 148 dB SPLdistortion not stated | |
| Output impedance | 600 ohmbalanced. "600 ohms balanced". | |
| Rated frequency range | 28 Hz to 18 kHzThe 2010 sheet: "28 Hz to 18 kHz at the -3 dB points" (p. 2). | |
| Powering | none (passive)Not stated by the manufacturer: A dynamic mic; no powering is mentioned. | |
| Connector | XLR-3 male"Output Connection: 3 pin XLR"; "Polarity: pin 2+" in the 2010 sheet. | |
| Weight | 383 gNot stated by the manufacturer: "13.5 oz." converted (× 28.35 g). | |
| Finish | Champagne (PR 40); also matte black (PR 40B), matte black and gold (PR 40BG), chrome (PR 40C) and gold (PR 40G)Versions on page 1. The 2010 sheet: "anodized matte champagne". | p. 1 |
| Supplied accessories | SM-3 microphone holder (5/8"-27)The 2010 sheet lists a leatherette carrying case and a mic stand clip, with the SM-2 shock mount as an option. | p. 2 |
| Rear rejection | -40 dB at 180° off axis | |
| Pop filtering | Double-layered internal pop filter, plus acoustically transparent foam over the element; an external windscreen is sold separately | |
| UseHeil | Designed for close use: sources about 2 inches (5 cm) from the end grill. End-address: sound enters the end, not the side | |
| Suggested accessories | PRSM shock mount, PL2T boom, SB-2 boom, Pro Set 3 headphones | p. 1 |
| From the spec sheet (Recording Hacks copy) | ||
| Dimensions | 171 × 53 mmNot stated by the manufacturer: Length × diameter: "6.75"" and "2.10"" converted. The dimension drawing (p. 2) says 6 11/16" (170 mm) and 2 1/16" (52 mm); the stem is 15/16" (24 mm), and 1" in the drawing. | p. 1 |
| Case | Steel | |
| Shock mount | Element on a Sorbothane shock mount (2010 sheet); four rear ports | |
| Made in | Assembled and tested in Illinois (2010 sheet) | |
Documents
- PR 40 spec sheet01/2022
- PR 40 Dynamic Microphonespec sheet
Copies kept by Mic Archive (manufacturers move and drop their documents). Each is © Heil Sound, unchanged, with its original address.
Recommended for
By recording guides, engineers and mic makers, for this mic or an earlier version of it.