| Spiro Ranger XP Unbalanced piston first-stage with four mp and one hp port. Plastic second-stage. | |
| First impressions: We thought that this regulator looked very old-fashioned. It was basic and functional. The radial layout of the ports gave poor hose routeing. Both our female testers liked the Comfobite mouthpiece: "Awesome!" There was a nice exhaust port chin rest if not a nice exhaust bubble routeing. At depth: George: "A surprise performer. For a budget regulator it did very well at 40m, with satisfying results. The second-stage seemed enormous in comparison to the others." Sarah: "It loomed in my field of vision. It seemed a good smooth breathe. I would buy it and use it for a decompression cylinder." Steffi: "I had to work a little to get air but under the panicky breathing routine it did fine. It was like the regulator I used when I first learned to dive." Steve: "It was very even but with a lot of resistance. I had to pull hard to get what I wanted. It gave up the air grudgingly. I would not want to use the Ranger alone for anything serious." Upside-down: OK but stayed slightly wet, retaining a slight spray. In a fast current: Average. What the machine found: A good performer but it quickly became unacceptable beyond 55m. Work of breathing at 50m: 1.85 joules/litre. Guide price: £134 |
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| Spiro Supra D XR2 Cryo Diaphragm first-stage with four mp and two hp ports. Plastic second-stage with venturi +/- and BRA. Cold-water spec. | |
| First impressions: We all thought the first-stage looked clumsy, although it is environmentally dry-sealed and gives nice hose routeing. The second-stage looks great and the ability to rig it left or right-handed has big advantages for the tekkie. The BRA knob was a good size but the venturi +/- switch was too small to handle with gloves. At depth: George: "I liked everything about this regulator apart from its daft name! It was still a great breather at the minimum BRA knob setting. One of the nicest." Sarah: "A good breather with a sad name! I loved the small second-stage and the mouthpiece." Steffi: "Wonderful to breathe from. It was very user-friendly. I loved the Comfobite mouthpiece and would have bought a few until I found they retailed at £9 each! The panic breathing routine proved fine. Head back, it was fine too, although there was noticeably more resistance. I'd use one in a cave." Steve: "I liked it, although the powerful rush of air was more than I wanted at times. But the BRA knob was very effective." Upside-down: Great! In a fast current: Average when BRA screwed right down. What the machine found: The performance of the example tested quickly became unacceptable beyond 46m. Work of breathing at 46m: 1.70 joules/litre. Guide price: £270 |
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| US Divers SEA4 Micra ADJ Diaphragm first-stage with four mp and two hp ports. Plastic second-stage with venturi +/- and BRA. | |
| First impressions: The first-stage was thought to be disappointingly bulky but with nice hose routeing. It was not pretty. The second-stage looked to have a superb design with a great purge button, a big BRA knob, yet a tiny exhaust tee. George disliked its Comfobite mouthpiece. At depth: George: "The BRA knob appears to be a waste of time and difficult to adjust underwater. However, the breathing seemed very good and the lightweight second-stage was unobtrusive. A good confidence-building regulator." Sarah: "I needed to make a real effort to inhale and yet I got cold teeth when I did. It was difficult to crack open the valve. However the Comfobite mouthpiece was really comfortable. The second-stage would be more compact without the useless knobs!" Steffi: "Man, it's brilliant! I put it in the same basket as the Apeks TX40. I love the Comfobite mouthpiece. The only trouble was when I faced upwards it cut off the air supply altogether!" Steve: "Switching to it even from the TX40 was like slipping into overdrive." Upside-down: Wet, but better than OK. In a fast current: Average when BRA screwed right down. What the machine found: A severe spike in the graph indicated that extra effort was needed to initiate the air supply. Our example could not deliver air within the parameters beyond 48m. Work of breathing at 48m: 2.34 joules/litre. Guide price: £299 |
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