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SR¹ high performance regulator will be available in stores in January 2008. With
superior breathing performance of less than 0.5 joules/liter, W.O.B. at 165 fsw,
62.5 RMV, the SR¹ is the most technologically advanced regulator Sherwood Scuba
has produced in its storied 50 year history.
The SR¹ utilizes a pneumatically balanced second stage, with
a two-piece flow-through first stage piston for precise optimum balance and
intermediate pressure control. The first stage is environmentally sealed
featuring a dry-sealed spring chamber, two high pressure ports, five low
pressure ports on a 360 degree swivel and is compatible with a yoke or DIN
attachment. The second stage contains a SMART demand lever and floating crown
which reacts to depressurization and relieves the load on the seat, extending
seat life while promoting consistent performance.
Importantly, the second stage employs a unique single adjustment point to
simultaneously set opening effort and high flow performance with one motion--the
need to make separate adjustments has therefore been eliminated. The size of the
SR¹ control knob has also been optimized to enable easy location and operation,
even for a diver wearing gloves.
The SR¹ packs its advanced technology into a compact case which employs
contemporary styling and utilizes a multitude of cutting edge materials.
Sherwood regulators have
long enjoyed a reputation for durability, but with the new SR1, the company
plans to show the world it can compete in the realms of innovative design and
high performance, too. The first stage is polished chrome over brass with five
low-pressure ports on a turret and co-molded yoke knob. It houses a unique,
balanced, flow-through piston inside a dry-sealed spring chamber, in essence
offering the best of both worlds: the reduced corrosion benefits of a diaphragm
reg, with the performance and durability benefits of a piston reg. But the
goodies don't stop there. At the other end of the SR1's low-pressure hose, the
plastic second-stage body has an almost velvety texture to it and an attractive
chrome trim ring. Eye-catching stuff to be sure, but what makes this
pneumatically balanced breather really interesting is the adjustment knob that
simultaneously controls both the venturi effect (to avoid free-flows at the
surface) and spring tension (to regulate breathing resistance at depth).
According to Sherwood, combining the two functions makes for a more
user-friendly reg and, based on our test dives, we'd have to agree. The SR1 also
comes standard with an oversized exhaust valve to reduce exhalation resistance
and an external adjustment fitting that allows your shop's reg tech to keep the
second stage tuned to peak performance.
All these features come together to make one sweet-breathing regulator. In
standard swimming and head-down-in-a-lobster-hole positions, air delivery is dry
and effortless. The flexible full-face purge provides a forceful blast of air,
and the low-profile exhaust tee does a good job of deflecting bubbles. Bottom
line: This is a solid breather. We can't wait to give it a full review in our
upcoming evaluation of new regs, due out in the July issue. MSRP: $640.
OASIS Regulator
If you’re a warm-water diver who gets that awful feeling of dry mouth, you are going to love the Oasis. Sherwood has exclusively developed two, second-stage moisture-retention fins for the Oasis that keep your mouth cool and comfortable all-dive long. Oasis also features:
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