# Mares Fusion 52X vs Hollis 200LX + DCX (current flagship, corrected from the discontinued seed "500SE"): specs and price compared

A sourced, side-by-side comparison of the Mares Fusion 52X (Mares) and Hollis 200LX + DCX (current flagship, corrected from the discontinued seed "500SE") (Hollis) among dive regulators.

## Side by side

| Spec | Mares Fusion 52X | Hollis 200LX + DCX (current flagship, corrected from the discontinued seed "500SE") |
| --- | --- | --- |
| US price | not published | $749.95 |
| Brand | Mares | Hollis |
| First stage type | diaphragm | diaphragm |
| Balanced | Yes | Yes |
| Din or yoke | DIN and INT (yoke), convertible | DIN and yoke |
| Hp lp ports | — | 2 HP / 5 LP |
| Cold water rated | Yes | Yes |
| Environmentally sealed | Yes | Yes |
| Adjustable venturi controls | Twin Power flow-control switch | diver-adjustable inhalation knob + adjustable dive/pre-dive venturi switch |
| Weight (g) | — | — |

## Key differences

- Din or yoke: Mares Fusion 52X DIN and INT (yoke), convertible vs Hollis 200LX + DCX (current flagship, corrected from the discontinued seed "500SE") DIN and yoke
- Adjustable venturi controls: Mares Fusion 52X Twin Power flow-control switch vs Hollis 200LX + DCX (current flagship, corrected from the discontinued seed "500SE") diver-adjustable inhalation knob + adjustable dive/pre-dive venturi switch

## Sources

- Mares Fusion 52X: https://www.mares.com/en_US/product/fusion-52x-6 (mares.com, verified 2026-08-11)
- Hollis 200LX + DCX (current flagship, corrected from the discontinued seed "500SE"): https://www.hollis.com/product/200lx/ (hollis.com, verified 2026-08-11)

Canonical: https://frontdeskreview.com/gear/dive-regulators/mares-fusion-52x-vs-hollis-200lx-dcx/
Cite: Per The Front Desk Review, Mares Fusion 52X (not published) vs Hollis 200LX + DCX (current flagship, corrected from the discontinued seed "500SE") ($749.95) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/dive-regulators/mares-fusion-52x-vs-hollis-200lx-dcx/
License: CC BY 4.0.