• Welcome to ScubaBoard


  1. Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.

    Benefits of registering include

    • Ability to post and comment on topics and discussions.
    • A Free photo gallery to share your dive photos with the world.
    • You can make this box go away

    Joining is quick and easy. Login or Register now by clicking on the button

XTX50 vs DS4 1st stage

Discussion in 'Apeks' started by jahouck, Sep 3, 2013.

  1. jahouck

    jahouck Garibaldi

    # of Dives: 200 - 499
    Location: San Francisco
    4
    0
    0
    It seems there is a larger preference for the DS4 over the XTX50 first stage. Does anyone care to expand on this (I was shopping for a set of DS4's for a doubles set up but came across a set of XTX50's at a lower price).
     
  2. tphillipp

    tphillipp Dive Equipment Manufacturer

    # of Dives:
    Location: Vista, California
    221
    36
    28
    Hi jahouck,
    Actually there is a larger preference for the XTX50 (DST) first stage. DST being anacronym for Dry-Sealed w/ Turret. The turret is a convenience feature leading to optimum hose routings.

    There is a school of thought in the technical community that the turret, with its dynamic o-ring is a potential failure point. While this has not proved to be an issue, some have opted to take the same regulator without the swivel turret, thus you have the XTX50/DS4. Because it is primarily embraced by technical divers, it is only offered with a din connector in the USA.

    The regulators are essentially the same with the only difference being the turret.
     
    pbiebach likes this.
  3. Dr. Lecter

    Dr. Lecter Solo Diver

    # of Dives: 500 - 999
    Location: NYC/Honolulu
    4,139
    2,923
    113
    The XTX50 1st stage is, as far as I know, just a DST with an Apeks logo etched onto it. So between it and the DS4, it just depends on whether you want a turret reg or not. For doubles' hoses, in addition to the swivels being failure points, some find the shorter DS4 regs route better.
     
  4. jahouck

    jahouck Garibaldi

    # of Dives: 200 - 499
    Location: San Francisco
    4
    0
    0
    Thanks for the insight.
     
  5. Centrals

    Centrals Barangay Pasaway

    # of Dives:
    Location: Hong Kong
    6,717
    2,157
    113
    You can attach a 5th port into the turret(DST) and make the hose routing even better(same as MK25). Not sure if this also apply to UST though!
    BTW, MK25 also has swivel turret!
     
  6. Johanan

    Johanan ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 200 - 499
    Location: Riga, Latvia
    673
    221
    43
    DST with the 5th port is ideal for sidemount configuration. Perfect routing and the turret makes stowing and deploying the hoses easier.
     
  7. Crass3000

    Crass3000 Divemaster Candidate

    # of Dives: 100 - 199
    Location:
    344
    56
    28
    deleted due to my understanding being wrong about dry sealing on the DS4
     
    Last edited: Sep 19, 2013
  8. j2s

    j2s Loggerhead Turtle

    # of Dives:
    Location: florida
    1,311
    221
    0
    XTX50 is the 2nd stage.....DS4 is the short non-turret 1st stage and DST is the 1st stage w/turret.....I've got two DS4's and 2 XTX50's for sale.........You can add a fifth port (on top) to a DST.......And I've never had any problems w/a DST, use to use them on my cave doubles.......But HOG comes w/a fifth port already and whereas the DS4 only has 1 HP port, the HOG D1 has two.....More options when routing hoses........PM me if your interested in the DS4's/XTX50's....All four have been rebuilt and tested........
     
  9. elan

    elan DIR Practitioner

    # of Dives: 200 - 499
    Location: Toronto, Ontario, Canada
    3,316
    378
    83
    A UST is "unsealed" DST so it should apply.
     

Share This Page