Heil Sound PR35 Review | Podcastbricks

When it comes to microphones, the Heil Sound PR35 stands out as a compelling option in the crowded field of dynamic vocal mics. Designed by Heil Sound, a company founded by Bob Heil—a pioneer in live sound reinforcement—the PR35 blends innovative engineering with practical functionality. It’s marketed as a versatile tool for live sound, recording, and broadcast applications, promising a rich, smooth sound with exceptional feedback rejection. But does it live up to the hype? In this review, we’ll dive into the PR35’s design, sound quality, real-world performance, and its strengths and weaknesses to help you decide if it’s the right microphone for your needs.

What is the Heil Sound PR35?

The Heil Sound PR35 is a handheld dynamic microphone with a cardioid polar pattern, designed to capture vocals and instruments with clarity and warmth. Launched as an evolution of Heil’s acclaimed PR30, the PR35 incorporates a large 1.5-inch diaphragm and a unique shock-mount system, setting it apart from traditional dynamic mics like the Shure SM58 or Sennheiser e935. It’s built for professionals who demand high-quality audio in challenging environments, whether on stage, in the studio, or behind a broadcast desk.

Priced around $269 USD , the PR35 sits in a mid-to-high-tier price range, competing with premium dynamic mics while offering features that blur the line between dynamic and condenser performance. It comes equipped with a 3-position high-pass filter (HPF) switch, a rubberized exterior for grip and durability, and accessories like a mic clip, windscreen, and carrying case. Heil Sound also includes interchangeable trim rings (black, silver, and purple) for a touch of personalization—a small but appreciated detail.

Design and Build Quality

At first glance, the PR35 feels substantial yet surprisingly lightweight, tipping the scales at 255 grams (about 9 ounces). Its dimensions—approximately 7.6 inches long and 2 inches wide at the grille—make it slightly larger than the average handheld mic, but it’s still comfortable to hold. The matte, rubberized coating provides a secure grip and resists smudges, though some users note it can wear over time with heavy use. The steel body and zinc alloy grille suggest a rugged construction, but it’s not quite as tank-like as the legendary Shure SM58, which has a reputation for surviving drops and abuse.

Under the grille lies the PR35’s secret weapon: a massive 1.5-inch aluminum diaphragm, one of the largest in any dynamic microphone. This low-mass design aims to deliver fast transient response and a wide frequency range, rivaling the detail of some condenser mics. The diaphragm is mounted in a Sorbothane shock-mount system, which isolates it from handling noise and vibrations—a critical feature for live performers. Additionally, a humbucking coil minimizes electromagnetic interference, making the PR35 suitable for use near video monitors or other electronics.

The recessed HPF switch, adjustable with a small tool like a paperclip, offers three settings: flat, -3 dB roll-off, and -6 dB roll-off. While this feature is useful for taming proximity effect or stage rumble, its placement and lack of tactile feedback can be a minor annoyance. You won’t be tweaking it mid-performance, but it’s a thoughtful addition for sound engineers dialing in the mix.

Sound Quality: A Rich, Full Voice

The PR35’s frequency response spans 40 Hz to 18 kHz (flat setting) or 80 Hz to 18 kHz (with the HPF engaged), giving it a broader range than many dynamic mics. This wide bandwidth contributes to its signature sound: warm, full-bodied lows, smooth mids, and a crisp yet controlled high end. The mic exhibits a presence peak around 5-6 kHz, which helps vocals cut through dense mixes without sounding harsh or shrill.

In practice, the PR35 excels at capturing the nuances of a vocalist’s tone. Deep voices benefit from its robust low-end response, while higher registers gain clarity without excessive sibilance. The large diaphragm and lack of an output transformer lend a natural, open quality to the sound—almost condenser-like—without requiring phantom power. This makes it a standout choice for singers who want studio-grade detail in a live setting.

However, the PR35 isn’t without quirks. Its pronounced proximity effect means that close-miking boosts bass significantly, which can sound boomy if not managed properly. A high-pass filter on the mixing board or the mic’s built-in HPF can mitigate this, but it requires some finesse. Plosives (like “p” and “b” sounds) can also be an issue due to the mic’s sensitivity, though a pop filter or careful technique helps. Compared to a Shure Beta 58A, which emphasizes upper mids for a brighter, more aggressive cut, the PR35 prioritizes richness over raw loudness.

Feedback Rejection and Off-Axis Performance

One of the PR35’s most praised features is its exceptional rear rejection. The cardioid pattern, enhanced by a carefully designed phasing plug, delivers around -40 dB of attenuation at 180 degrees off-axis. This means sound from behind the mic—think stage monitors or loud guitar amps—is effectively minimized, reducing the risk of feedback. Side rejection is solid too, though not as tight as a supercardioid mic like the Shure Beta 58A.

In loud environments, the PR35 holds its own remarkably well for a cardioid mic. Users report using it on moderately noisy stages without issues, though it may not be the best pick for extreme high-SPL rock gigs where hypercardioid patterns shine. What’s particularly impressive is the lack of off-axis coloration—sound that bleeds in from the sides retains a natural tone rather than a warbly, distorted mess. This dual nature (cardioid clarity with omni-like consistency) makes the PR35 versatile for dynamic performers who move around the mic.

Applications: Where the PR35 Shines

Live Vocals

The PR35 was built with live sound in mind, and it delivers. Singers with strong, controlled voices—think jazz, soul, or pop—will appreciate its ability to project richness and detail through a PA. The high output level (louder than most dynamic mics) ensures vocals sit prominently in the mix, though engineers must watch for clipping if the singer gets too close. For rock vocalists using heavier techniques (e.g., screams or distortion), the PR35 might feel too refined; a mic like the Audix OM7, with its tighter pattern, could be a better fit.

Studio Recording

While primarily a live mic, the PR35 holds its own in the studio. It’s not a replacement for a large-diaphragm condenser on lead vocals—lacking the airy top-end sparkle—but it’s fantastic for guide tracks or situations where isolation is key. On instruments, it shines: the tight pattern and deep lows make it a natural for snare drums, toms, and guitar cabinets. Some engineers even use it on cymbals, appreciating its ability to focus without excessive wash.

Broadcast and Podcasting

For broadcasters and podcasters, the PR35’s warm tone and noise rejection are a boon. Its high output and midrange presence give voices a professional, radio-ready quality, while the rear rejection minimizes room noise. It’s not as forgiving as a Shure SM7B for untreated spaces, but with good mic technique, it’s a strong contender.

Pros and Cons

Pros

Rich, Full Sound: The large diaphragm delivers a warm, detailed tone that flatters most voices.
Excellent Feedback Rejection: Ideal for live stages with moderate noise levels.
Versatile Applications: Works well for vocals, instruments, and broadcast.
High Output: Louder than most dynamic mics, reducing the need for heavy gain.
Durable Design: Stage-worthy build with a comfortable grip.

Cons

Proximity Effect: Requires careful positioning or EQ to avoid boomy lows.
Plosive Sensitivity: Pop filters or technique adjustments are often necessary.
HPF Switch Accessibility: Recessed design is fiddly to adjust on the fly.
Not for Every Voice: Some singers find it too smooth or lacking in upper-mid punch.
Price: At $269, it’s a step up from entry-level mics like the SM58 ($99).

Comparison to Competitors

Shure SM58

The industry-standard SM58 ($99) is brighter and more forgiving, with a narrower frequency range (50 Hz–15 kHz) and less sensitivity to plosives. It’s tougher and cheaper but lacks the PR35’s richness and detail.

Shure Beta 58A

The Beta 58A ($169) offers a supercardioid pattern and boosted upper mids, cutting through loud mixes with ease. It’s less warm than the PR35 and picks up more feedback in some scenarios.

Sennheiser e945

The e945 ($199), another supercardioid, delivers a balanced, natural sound with excellent feedback rejection. It’s smoother than the Beta 58A but doesn’t match the PR35’s low-end depth.

Audix OM7

The OM7 ($249) is a hypercardioid mic built for loud stages, with a tighter pattern and less proximity effect. It’s less versatile than the PR35 and may not suit softer genres as well.

Who Should Buy the Heil Sound PR35?

The PR35 is a niche gem for specific users. It’s ideal for:

Professional Vocalists: Singers with strong technique who want a mic that enhances their natural tone.
Live Sound Engineers: Those needing a reliable, high-quality option for moderate stages.
Studio Multi-Taskers: Engineers seeking a single mic for vocals and instruments.

It’s less suited for:

Beginners: Its sensitivity demands skill to use effectively.
High-SPL Rockers: Louder environments may overwhelm its cardioid pattern.
Budget Buyers: Cheaper alternatives offer solid performance for less.

Final Verdict

The Heil Sound PR35 is a dynamic microphone that punches above its weight, blending the ruggedness of a stage mic with the finesse of a studio tool. Its rich sound, stellar feedback rejection, and versatile design make it a standout choice for professionals who value quality over convention. It’s not perfect—proximity effect, plosive sensitivity, and a slightly finicky HPF switch require workarounds—but these are minor trade-offs for its strengths.

At $269, it’s an investment that rewards those willing to master its nuances. If you’re tired of the same old SM58 sound and crave something fuller and more distinctive, the PR35 deserves a spot on your shortlist. It’s not just a microphone; it’s a statement from Heil Sound that innovation still matters in the world of audio.