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Which is better the Mares Akros or Voltrex?

Discussion in 'Regulators' started by timakempton, Oct 19, 2012.

  1. timakempton

    timakempton Nassau Grouper

    Recently picked up 2 sets of second hand Mares regs both are MR12 1st's but one has an Akros second and the other a Voltrex. Which is the better second stage? They are both older versions. I know the Voltrex was renamed the Abyss, But I have no idea which of these was regarded as the more up-market when they were new. Any opinions?

    Tiny Tim
  2. Fishpie

    Fishpie Instructor, Scuba

    # of Dives: I'm a Fish!
    Location: Fort Lauderdale
    The Voltrex was the more expensive and might have a small performance edge.
  3. LeadTurn_SD

    LeadTurn_SD Solo Diver

    The Voltrex. I have an older Voltrex, and also a pair newer Abyss 2nd's, and they are essentially the same (internally and performance).

    Maybe due to the brass orifice in the Voltrex (vs plastic orifice found in newer Abyss) I am able to get a slightly better "tune" on the Voltrex when I service it, which is saying a lot, since the Abyss 2nd's are very nice breathers for unbalanced downstream 2nd's.

    Best wishes.
  4. Greg Barlow

    Greg Barlow Manta Ray

    # of Dives:
    Location: Ohio
    The performance difference will be minimal. I have made many dives with both designs, and used two Akros second stages for my technical diving needs for nearly a decade.

    The Voltrex is actually the same as an Abyss. The Abyss was fitted with a larger diameter LP hose and was normally fitted to the MR22 first stage.

    The Voltrex is simpler, and easier to rebuild.

    The Akros offers easy cracking effort adjustment. Personally, I would use the Voltrex due to its robust design and benefits of a metal second stage. I currently use Proton Metal second stages.

    Greg Barlow
  5. acteg

    acteg Barracuda

    # of Dives: 100 - 199
    Location: Central FL
    I had a voltrex, and have 2 Abyss 2nd stages. They are essentially the same and are great breathers.

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