Heil Sound
Heil PR 30
Large-diaphragm end-address dynamic, supercardioid, for guitar amps, drums, broadcast and podcast
Power None (passive). Low output: it needs a lot of preamp gain.
- Type
- Dynamic
- Pattern
- Supercardioid
- Sensitivity
- −51 dBV/Pa computed
- Max SPL
- 146 dB SPL
- Among 36 dynamics: takes louder sound than 77%
- Among 343 mics: takes louder sound than 82%
- Rated range
- 40 – 18k Hz
vs 19 end-address dynamics
Takes louder sound than 67% 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.
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; near the stated output level of -51 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 1/2 inch dynamic element, large low-mass aluminium voice coil, neodymium iron boron magnet, hum-bucking coil"a large aluminum 1 1/2" low mass voice coil assembly". The 2010 sheet: "End fire generating element: 1 1/2" diameter dynamic", "Magnet structure: neodymium, iron & boron", and a hum-bucking coil (pp. 1-2). | p. 2 |
| Sensitivity | −51 dBV/Pa1 kHz; also −52.9 dBV/Pa, 2010 spec sheet ("Output level -52.9 dB", no frequency). Not stated by the manufacturer: "Output Level -51 dB @ 1 kHz", no reference given; taken as dB re 1 V/Pa. The 0° curve on the graph (axis -40 to -90, no unit) sits near -50 at 1 kHz. | |
| Max SPL | 146 dB SPLdistortion not stated. "Max SPL 146 dB". | |
| Output impedance | 370 ohmbalanced; also 600 ohm, 2010 spec sheet ("600 ohm balanced"). "370 ohms balanced"; the product page agrees. | |
| Rated frequency range | 40 Hz to 18 kHzThe 2010 sheet: "40 Hz. to 18 kHz. at the –3 dB points" (p. 2). | |
| Powering | none (passive)"without the inconvenience of phantom or outside d.c. powering". | |
| Connector | XLR-3 male"Output Connection: 3 pin XLR"; "Polarity: pin 2+" in the 2010 sheet. | |
| Finish | Champagne (PR 30) or matte black (PR 30B)Versions on page 1. The 2010 sheet: "anodized matte champagne". | p. 1 |
| Supplied accessories | SM-3 microphone holder (5/8"-27)"supplied with a microphone holder (SM-3)". The 2010 sheet lists a microphone stand clip, with the SM-2 shock mount as an option. | p. 2 |
| Rear rejection | -40 dB at 180° off axis | |
| Pop filtering | Two mesh screens of different openings, plus acoustically transparent foam over the element | |
| UseHeil | Designed for close use: sources about 2 inches (5 cm) from the end grill. End-fire: 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 | 159 × 52 mmNot stated by the manufacturer: Length × diameter: "6 1/4"" and "2 1/16"" from the dimension drawing and the engineers' specification (p. 2), converted. The table on page 1 gives the diameter as "1.75"" (44 mm), which does not match its own drawing; the stem is 15/16" (24 mm), 1" in the drawing. | p. 2 |
| Case | Steel | p. 1 |
| Shock mount | Element on a Sorbothane shock mount atop a non-resonant fixture (2010 sheet) | p. 2 |
| Made in | Assembled and tested in Illinois (2010 sheet) | p. 1 |
| From the product page | ||
| Weight | 255 g"Weight 9 oz (255 g)"; both sheets say "9 oz". | p. 1 |
Documents
- PR 30 spec sheet01/2022
- PR 30 Dynamic Microphonespec sheet
- Heil PR 30product page
Copies kept by Mic Archive (manufacturers move and drop their documents). Each is © Heil Sound, unchanged, with its original address.