Heil Sound
Heil PR 35
Large-diaphragm handheld dynamic, supercardioid, for live vocals, with a low-cut switch
Power None (passive). Low output: it needs a lot of preamp gain.
- Type
- Dynamic
- Pattern
- Supercardioid
- Sensitivity
- −52.9 dBV/Pa computed
- Max SPL
- 140 dB SPL
- Among 36 dynamics: takes louder sound than 20%
- Among 343 mics: takes louder sound than 56%
- Rated range
- 40 – 18k Hz
- Released
- 2007
vs 13 handheld dynamics
Takes louder sound than 17% of 13 handheld dynamics.
Each stripe is one handheld 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). Filter position, 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 (the PR 30's), aluminium low-mass voice coil, neodymium iron boron magnet, hum-bucking coil"the large aluminum 1 1/2" low mass voice coil assembly encompassed by a neodymium magnet assembly comprised of neodymium, iron and boron". The 2010 sheet mentions the hum-bucking coil (p. 2). | p. 2 |
| Sensitivity | −52.9 dBV/Pa1 kHz. Not stated by the manufacturer: "Output Level -52.9 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 -58.5 at 1 kHz, about 5.5 dB lower. | |
| Max SPL | 140 dB SPLdistortion not stated. "Max SPL 140 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 kHzfilter up (off); also [80, 18000], filter down (on). "40 Hz - 18 kHz (UP- no filter)", "80 Hz - 18 kHz (DOWN- filter on)". The 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". | |
| Low cut | off, 80 Hz, 6 dB/octave; 80 Hz; 6 dB/octave"an internal low-frequency filter push button switch which can be accessed by using a small screwdriver or paperclip. With the switch pushed DOWN, the audio rolls off at 80Hz at -6 dB per octave." | |
| Connector | XLR-3 male"Output Connection: 3 pin XLR"; "Polarity: pin 2+" in the 2010 sheet. | |
| Rear rejection | -35 dB at 180° off axis | |
| Shock mount | Element in an internal rubber shock mount (2023); a Sorbothane shock mount atop a non-resonant fixture (2010) | |
| Off-axis colourationHeil | "There is virtually no off-axis coloration, even if 'cupped', the response of this microphone will not change" | |
| Suggested accessories | SM-1 shock mount, PL2T boom, SB-2 boom, Pro Set 3 headphones | p. 1 |
| From the spec sheet (Recording Hacks copy) | ||
| Dimensions | 195 × 50 × 25 mmNot stated by the manufacturer: Length × diameter × stem: "7.67"", "1.97"" and ".98"" converted; the dimension drawing (p. 2) agrees. | p. 1 |
| Finish | Black rubberised coating"black rubberized"; the case is steel, "finished in a rubberized, matte black" (p. 2). | |
| Supplied accessories | SM-5 mic clip; aluminium carrying case"Furnished Accessories: SM-5 mic clip and aluminum carrying case" (2010); optional PL 2T and SB-2 booms. | |
| Case | Steel | |
| Made in | Assembled and tested in Illinois (2010 sheet) | |
| From the Recording Hacks page | ||
| Released | 2007 | |
| From the product page | ||
| Weight | 255 galso 298, 2010 spec sheet ("10.5 oz", converted). "Weight 9 oz (255 g)"; the 2023 sheet says "9 oz.". | p. 1 |
Documents
- PR 35 spec sheet10/2023
- PR 35 Dynamic Microphonespec sheet
- Heil PR 35product page
- Heil Sound PR-35 | RecordingHacks.com
Copies kept by Mic Archive (manufacturers move and drop their documents). Each is © Heil Sound, unchanged, with its original address.