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Product Details

A revolution in custom hearing protection
ACS PRO_20_Top2

The PRO-20 filter provides attenuation specifically designed for high noise situations where there is an emphasis on higher pitch frequencies. For motor sport the PRO-20 provides protection against wind, road and engine noise whilst allowing the wearer to maintain situation awareness, hear the note of the engine and communicate clearly when stationary. Designed from the ground up for motorsport and industry the PRO-20 is the ideal filter for demanding environments. The PRO filter also provides water resistance so it will carry on performing in the hot or humid conditions of a crash helmet or demanding industrial environments with no detriment to the attenuation.

The edge you want with the protection you need

The PRO-20 offers protection that’s been specifically designed for those exposed to dangerous high frequency noise. Its dB reduction increases gently up to the high frequencies so you can hear everything you need to and not what you don’t. Keeping the attenuation less agressive in the lower frequencies gives you greater situation awareness and allows you to communicate comfortably without the need to keep removing and replacing your plugs so you can put your hearing protection in and leave it there all day if necessary. With an average attenuation of 20dB the PRO-20 can increase your safe exposure times by up to 6.5 times so you can enjoy your hobby or occupation with confidence and, with its slimmer and more discreet profile, in complete comfort.

The next generation of filter design 

The PRO- filter series has been designed anew with the wearer in mind. For starters, it’s smaller than many competing filters which means 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. The filters are also user-swappable so you can chop and change as your environment demands to any other filter in the PRO range giving you complete control over your protection with just a single set of earmoulds. 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.

The curse of the occlusion effect 

Trying to create a natural sounding earplug is no mean feat as far as your own voice is concerned because, as you will have experienced, when you block off your ear canal your own voice starts to boom inside your head, this is what we call occlusion. Occlusion is caused by sound that is carried to your ear canal through the cartilage at the side of your head and 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 so that the sound hits the plug and is deadened rather than entering the canal at all but the PRO filters go one step further. The PRO series are vented to allow sound to pass both ways which means that remaining sound can escape directly through the filter providing one of the most natural sounding earplugs available.

AU$250.- / NZ$ 287.50

*Please check pricing with your dealer when booking your appointment



Tailor made for you

The PRO 20 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 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.

Build Material 40 Shore Silicone with SterlTouch
Mould Type Canal Mould
Standard Color Clear




Conforms to EN352-2:2002

Product Downloads

Download the latest PRO Series care and usage instructions.

Download the latest product specification sheets.


Items included...ACS PRO WITH CORD

  • Carry Pouch
  • Wax Pick
  • Comfort Cream
  • Care and Instruction Booklet

Optional extras...

  • Grips to aid removal 
  • Cording
  • Colour (see chart below)
  • Laser Etching - up to 10 characters


Comments from Matthew Rolfe, - a customer that bought the ACS PRO 20

Just thought I'd let you know I just got my earplugs (only just picked them up from the PO) and I must say - incredible! So, so good, thank you so much!!

They work even better with the T15s and the sound is amazing - better than any headphones I've ever had!

I can't thank you enough personally for all your help and professionalism and fantastic customer service!! I can't get over how good they are - definitely recommending these to everyone!!

Who else uses ACS kit...

Armin van Buuren Black Sabbath One Direction N-Dubz Scouting For Girls
Access to Music  Diana Vickers Jessie J Paloma Faith Slipknot
Aloe Blacc Ed Drewitt Judge Jules Paolo Nutini Stephen Fry
Ash Eddie Halliwell Kaiser Chiefs Pendulum Stereophonics
Basement Jaxx Tiesto Kasabian ICMP Students Super Furry Animals
Joe McElderry Example Ladyhawke Phil Collins Supergrass
BBC Radio Fat Boy Slim Lily Allen Pink Floyd Tech Music School
BBC Orchestra Fenech-Soler Lulu Platform One Students The All-Stars
BBC Singers Francesqa Manic Street Preachers Professor Green The Blackout
LMFAO Heather Small McFly Radiohead The Futureheads
Roni Size Hot Chip Muse Rank 1 The Last Republic
The Saturdays The Script Young Guns Tim Westwood The Prodigy
X Factor Tour 2011 & 2012 Tinchy Stryder Embrace U2 fiN
Travis Wretch 32 Hadouken! Pete Tong  Aurora J Young
Emeli Sandé Rita Ora David Stewart Ralph Salmins Yasmin

ACS provided in-ear monitors for the X Factor 2009 contestants to use during the X Factor tour earlier this year and we caught up with the talented singers Danyl Johnson and Jamie 'Afro' Archer to find out how they are enjoying their T2s;

Danyl said: "Being a new performer and playing venues such as The O2 London, LG Birmingham and The Echo in Liverpool, I wouldn't want to use any other in ears than ACS T2s. Crystal clear sound, easy and comfortable to put in my ears, plus loads of different colour options to choose from with the added personal touch of having your name on. Good for me as I lose everything, haha!"

 Danyl Johnson performing using ACS T2 in-ear monitors

Jamie 'Afro' Archer also uses a pair of ER15s for performing on-stage when he isn't using in-ear monitoring. He told us: "As someone who is subjected to loud noise on a regular basis it is vital that I have the best protection for the long term. That's why I wouldn't use anyone else but ACS. I have both In ear monitors and ear protectors and they are brilliant. They feel very natural and comfortable and I wouldn't be without them now. The sound is crystal clear and I feel they actually enhance my experience onstage and my performance. Get a pair now. You won't regret it."

Good luck to both guys as they continue their careers in music performing. ACS will be keeping in close contact with them both.