Pro 27 – Designed for high-noise industrial environments and motor-sports

5.00 out of 5
(2 customer reviews)

From: $299.00

Custom made soft silicone earplugs with hearing protection filters offering exceptional attenuation in dangerously loud high frequency environments. Popular with sound engineers, event staff and seriously loud amplified musicians. Used in extreme industry environments and motorsports. Exceptional attenuation in dangerously loud high frequency environments.

Tested to the AS/NZS 1270 standards as Class 5



Pro27 earplugs: Custom Hearing for High-noise Environments

Pro 27 – Designed for high-noise industrial environments and motor-sports
ACS Pro27 Custom Earplugs

The PRO27 earplug is a breakthrough in high-noise filtering, giving you an almost flat reduction of around 23dB through the low and mid range frequencies so that you maintain situational awareness and your ability to communicate, but can still be comfortable in very loud environments. In the higher frequencies, the PRO27 gives you a stark jump in hearing protection, offering up to 35dB where you need it most so you can carry on working or enjoying your passion in safety. With an average attenuation of 27dB, the PRO27 can increase your safe exposure time by up to 9 times.

The Pro27 is small, Comfortable and always Fit Snugly

The PRO filter series has been designed anew with the wearer in mind. For starters, it’s smaller than many competing filters, meaning that it can fit into smaller ears without any protrusion which is great for both comfort and aesthetics because it will always fit snugly underneath a helmet or other headwear. The filters are also removable so you can clean and maintain your earmoulds and your filters – giving you the maximum life and the best value for money from your plugs. In addition, the PRO series are water resistant so they can be used outside or in high moisture environments and can withstand perspiration without it damaging the filter membrane.

A Natural Sounding Earplug without the Occlusion

A Natural Sounding Earplug without the OcclusionTrying to create a natural sounding earplug is no mean feat as far as your own voice is concerned because, as you may have experienced, when you block off your ear canal your own voice starts to boom inside your head (this is what we call occlusion). This is caused by sound that is carried to your ear canal through the cartilage at the side of your head which usually escapes through the open ear canal so is not heard. When we block off the canal this sound cannot escape and so creates that booming effect. A large amount of occlusion can be eliminated by ensuring that the earplug sits deep enough into the ear canal to extend past the cartilage. This ensures that the sound hits the plug and is deadened rather than entering the canal at all. The ACS PRO filters go one step further by being vented to allow sound to pass both ways, meaning that remaining sound can escape directly through the filter providing one of the most natural sounding earplugs available.

Pro27 Earplugs are Custom made Hearing Protection

The PRO27 ear plug is custom-made using soft medical-grade silicone so you get the very best in isolation and fit, allowing you to wear them for hours at a time without fatigue or discomfort. Each custom earpiece is manufactured to the highest standards ensuring you get a comfortable, discreet and effective hearing protector that can be fitted quickly, easily and securely every time.

Pro27 Earplugs are Tested and Certified Class 5

certified hearing protection class5PRO27 ear plugs and filters have been tested and certified to AS/NZS-1270 standards as a Class 5 Hearing Protector as well as the EN352-2: The European Standard for ear plug hearing protectors.

Pacific Ears can help you make the right Choice in Hearing Protection

If you are unsure what product to buy or need further product information before making your purchase, please contact Pacific Ears at We are always happy to help!

Exchange and Replacement Pro-series Filters

FILTER EXCHANGE: If you find the filters you have chosen are not suited to your use we will exchange them for a different type. Simply contact us to return your filters to us, and on receipt, we will send the replacement pair of filters that you have chosen. The Pro27 filter is only interchangeable with the Pro31 filter. If you like a different option please contact us before you send the filters to us. This free of charge exchange can only be actioned once, only when the filters are still in new condition and within 30 days of receipt of your order.

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2 reviews for Pro 27 – Designed for high-noise industrial environments and motor-sports

  1. 5 out of 5

    Eleni Laven (verified owner)

    Wonderful product and great service. My custom silicone earplugs and far and away superior else that I have used – convenient, comfortable and effective. Good for any time I need to study, relax or focus in comfort.

  2. 5 out of 5

    PJ Olivier (verified owner)

    Awesome great fitting product and fast efficient service and communication.

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Pro 27 – Designed for high-noise industrial environments and motor-sports
From: $299.00