Engage Custom IEM

Delivers a great value all rounder, high fidelity IEM. Warm, detailed and highly enjoyable IEM.
For info on Colour, Cable & Laser Etching options, see the 'Optional Extras' tab below.
engage-custom-iemEngage Custom IEM

IEM Colour
IEM Cable
Laser Etching
Etching Text
Characters written: 0
eg.. your name (MAX 10) N.B. Offensive words or phrases will not be accepted.
In ear monitor case
In ear monitor case
ACS Revivo Portable Electronic Dryer & Sanitiser
ACS Revivo
IEM Colours
Evoke Live Cable
2.5mm Balanced TRRS Twist Cable
  • Product Details
  • Specifications
  • Downloads
  • Optional Extras
  • Maintenance


The Engage features a dual driver, 2-way crossover configuration delivering deep, engaging low end, well defined midrange and smooth detailed highs with no harmonic distortion. To make things even better we have now introduced our exclusive SSI technology to the Engage.

NEW for 2017! Our redesigned cable and mounting system ensures excellent durability and gives the Evoke a great new look.

Continuous Development

For 2017, we have introduced our patent pending IRIS and exclusive SSI technology across our entire IEM line-up.

IRISIntelligent Resonance in Silicone is a patent pending technology we have created to maximise the potential of miniature balanced armature speakers. IRIS construction methods allow for very precise acoustic tuning to deliver our unique ACS sound signature. IRIS brings an added dimension to music in a way that mimics the warm, lush and open sound that valve amplifiers provide.
SSISound Stage Imaging is a tuning technique achieved by using our own purpose designed manifold technology. Implemented into our custom and universal in-earphones, SSI positions the audio into a wider array than other earphones, bringing a superbly defined and very detailed response to further enhance your listening experience, positioning all the instruments as if you were sitting in front of the stage listening to the live performance.

Not all cables are created equally

After months of research and experimentation with different cables we took the plunge and designed our own from scratch, not only this but we have moved all our IEM’s on to the same cable system. This allows for compatibility with future upgrade cables and the ability to swap cables between the Custom, Live Custom and Universal fit product lines.
Our new twist cables have a continuous design from end to end for ultimate strength and durability. The soft outer jacket ensures no microphonics are transmitted and combining this with tight twist pattern the cable will not tangle or knot up.

Final Word

Combining the latest ACS technologies and the new detachable cable system the Engage delivers a great value all rounder, warm, detailed and highly enjoyable IEM. If you are looking for an IEM which really Engages you with the music then the ACS Engage is the one for you.

No. of Drivers 2 (1 x Bass, 1 x Mid-High)
Build Material 40 Shore, custom fit, medical grade silicone moulds finished with a hard wearing flexible lacquer
Mould Type/s Full-Concha
Cable Exit Options Top (over-ear)
Cable Type Detachable ACS IEM Twist Stereo Cable
Standard Cable Length 1.5m
Standard Connector Low profile 3.5mm stereo right angled plug
Frequency Range 20hz-20Khz
Sensitivity @ 1Khz 118.5db
Impedance @ 1Khz 120ohms
Items Included Carry pouch, ACS Revivo, wax pick, care and usage instructions, comfort cream, step-up jack connector adaptor

Download the ACS Engage Custom specification sheet.

Laser Etching

Have your name or other text lasered on to each side (Up to 10 characters including spaces).


Our new twist iem cable is now fitted as standard on all our IEMs, or you can choose an alternative from the options below

Black non-twisted stereo IEM cable for a slimmer profile, compatible with all current IEM's. See image 8

Balanced 4 pole 2.5mm twist cable. Connection is compatible with all our IEM's with the 5 pin connection system. Balanced 4 pole connector compatible with any digital audio player with 2.5mm balanced output (Astell & Kern, Onkyo, Pioneer etc) See image 9


Custom IEM's are made in clear silicone as standard, or you can choose an optional colour from the chart below.

NB: The colours shown in the chart have been reproduced as accurately as possible, but may differ from the actual product due to differences in screen resolutions.
Click image to enlarge or Download as a PDF.

IEM colours

A few words about care and maintenance

We make our in ear monitors with pride and like all things worth having, they are worth looking after. Just follow these simple rules and you should receive many years of trouble-free service.

  • Check the sound ducts after each use and use the wire pick supplied to remove any ear wax that has made its way into the tubing.
  • Never use the cables to remove the IEMs - this will eventually put strain on the connector and will damage the cable.
  • Ensure moisture from either humidity or sweat is removed straight after use. We supply silica gel and a zip up pouch for this purpose. We recommend using your Revivo dehumidifier after each use.
  • Finally, read the instructions supplied.