Halcyon's Multifunction Compensator is a complete "doing it right" kit for every diving application. The MC's modular design allows you to modify your set-up to fit your dive. A complete MC includes a buoyancy wing and selections from the following list appropriate to local dive conditions:

• Eclipse Wings
• Explorer Wings
• Evolve Wings
• Secure Harness
• Surface Marker, Shuttle or Raft
• Lift Device
• Weighting
• Trim Weighting
• Guideline
• Primary Light
• Reserve Light

DIR Information Network >> ACB FAQ

Do I have to use an ACB weight system, or can I use a weight belt with the MC system?

The traditional weight belt works with any Halcyon MC system. However, for the diver seeking maximum safety and efficiency in their gear configuration, the Active Control Ballast" (ACB) system provides a sleek, low profile-- and more comfortable-- alternative to the standard weight belt.

Halcyon's ACB systems are offered in two sizes: the 10 lb (per side) ACB 20, or the hardy 15 lb (per side) ACB 30. Both the 10 lb and 15 lb styles feature a unique design that eliminates the use of "all or nothing" style weight releases. The MC system, coupled with ACB weighting, offers several means to affect a controlled emergency ascent, which is easily achieved through simple distribution of "ditchable" vs. "non-ditchable" weight.

A diver at depth only needs to remove enough weight to allow an ascent in an emergency. If all of the weight is worn on a belt or other similar "all or nothing" weight systems, the only option in an emergency is to "ditch" all of the weight, forcing the diver into a ballistic ascent. Conversely, the diver with a more even distribution of weight may choose to only "ditch" a portion of their overall weight and affect a controlled ascent to the surface. ACB users can remove one or both weight pockets for greater control. The "non-ditchable" weight is easily incorporated via Halcyon's Stainless steel back plate/secure harness and/or trim weights.

Although weighting can vary depending on factors such as diving environment, exposure suit, and tank size, Halcyon offers a solution for every diver's needs. The solid foundation of the MC system with ACB weighting makes diving in any environment a lot more enjoyable by providing divers with the safest, most streamlined gear configuration.

DIR Information Network >> How is the ACB System attached to an MC System? [Next]