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ACS T3 Single Driver Monitor

ACS Custom USA, LLC 

New York (Head Office)      Los Angeles

@ SIR Studios                   1616 Vista Del Mar
520 W 25th Street            Los Angeles, CA 
New York, NY                  90028

646 559 5642       




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Product Details

A decade of heritage

T3 Slice

The T3 is our original in-ear monitor built with a single lightweight driver in a half mold shell delivering the full dynamic range of sound from a clean, simple and discreet package weighing in at only 0.45 ounces. First manufactured in 1999, the T3 has been delighting audiophiles and performing musicians alike for more than a decade, giving people the freedom to enjoy sound just as they want to hear it without interference from outside noise.

Continuous innovation

Over the course of the last ten years the T3 has not stood still. The ACS spirit of innovation has meant that the T3 has been developed and improved every year of its life to give us the product that many people still swear by today. Improvements to the silicone, build method, driver and cabling have kept the T3 at the forefront of cost-effective in-ear monitoring - which still continues today. 

The performance you demand

Making sure that we use the right cable to deliver your sound is as important as every other aspect in the design of our monitors, so we make sure they are just as well thought out. Starting with the best conductive core, we then add Kevlar threads for strength and flexibility so that we can be sure you'll get the performance you demand. Each cable is sheathed with a special finish that reduces the transmission of friction noise to the earpieces so there's as little interference as possible. The cable is then clamped at the Y divide with a custom pressed lengthened binder to give it extra strength where you need it most. Finally, each cable is finished with our custom-molded right-angled plug offering high levels of resilience as well as quality with a gold-plated 3.5mm connector and iPhone compatible shoulder design.

A personal finish

It's the finishing touches that make every one of our hand-made monitors completely unique from a choice of cable colours to a selection of bespoke silicone finishes. Every monitor can be laser etched with lettering of your choice.


MSRP $479.00


ACS T3 Xmas Promo


Future Publishing is the proprietor of Community Trademark Registration numbers 1687359 and 4298964 for T3, and publishes "T3" magazine and website in the United Kingdom. A further 20 foreign editions of T3 magazine are published under licence. Future Publishing Limited is part of the Future plc group. For more information on the Future group visit



Active Drivers 1
Build Material 40 Shore Silicone with SteriTouch
Mold Type Full Concha
Cable Type Kevlar reinforced with anti-friction sheath
Standard Cable Color Translucent
Standard Color Clear
Connector 3.5mm gold plated molded
Standard Cable Exit Top (over the ear)
Frequency Response 16Hz ~ 20KHz
Noise Isolation 26dB
Impedance 17 Ohms
Items Included Carry pouch, personalized rugged case, wax pick, care and usage instructions, comfort cream, step-up jack connector adaptor


Items included...

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

Optional extra's...

  • Color (see chart below*) 
  • Laser Etching - Available soon in the US!

T3 In-ear monitors are available in a range of silicone colors. Please contact your ACS Custom network provider for details.


Comments from George Stouraitis, a customer that bought the ACS T3:

Just a quick email to say a big thank you to everyone over at ACS for the quality of your product and level of customer service. I recently purchased a set of the T3 monitors to replace my Sony V700 over-ear headphones that I have been using to DJ with for many years, and after much use I can safely say they are the best investment I have made since I started. The level of sound quality, fit and noise reduction are nothing short of amazing and mean I can now play an entire night in comfort, with a consistently clean sound to mix to and free from that constant ringing sound when I leave! An especially big thanks to Matthew for doing a brilliant job on the fitting, and also to Stacey for all the help and info over the phone, and also for managing to book me in on the day of my 21st.