Performance
Ok, enough about how it looks and how to use it, let's see how it works. Typically, the day after I post my 6-way SECC1 cooler comparison, this cooler arrives on my doorstep. Fine. Rather than re-do the entire thing, I've compared the VOS-32 to Globalwin's FKK-50, which won the previous comparo. I've left the FKK-50 in my modified form, with the fans moved from the outer edge of the heatsink to the middle, because it works much better that way. This is some stiff competition for the VOS-32. I used the same setup as yesterday, a P2-400 overclocked to 460MHz - this pumps out a lot of heat, especially when over-volted. I used the Soyo SY6-VBA-133 motherboard because it can read the P2's internal thermal diode and of course this was all mounted inside the Macase K10 midtower. Testing was 20 minutes of Unreal flyby with SETI@HOME running in the background to catch any spare CPU cycles. The PC was allowed to cool between tests and thermal paste was re-applied each time. I actually did 2 different sets of tests at different times of the day with different conditions, dismounting each cooler and re-applying thermal paste each time. The details follow:

Test 1: Ambient temperature 23.5C, CPU running at 2.1V, case-front fan OFF.

Test 2: Ambient temperature 25C, CPU running at 2.2V, case-front fan ON.

From the graphs, in terms of sheer heatsink performance the VOS-32 seems to pull up a little short. Without the duct it leaves the CPU a full degree warmer than the modified FKK-50. It's surprising how much cooler even the non-ducted VOS-32 gets the in-case temperature, though - obviously, in part, because it's not getting as much heat off the CPU. With the addition of the duct things become rosy, as you'd expect, with both case and CPU temperatures dropping nicely. I couldn't test the duct with the FKK-50 'coz it doesn't fit.

Conclusions
Well, despite the serious looks (another candidate for the clear perspex case?) the VOS turns in a mixed performance. If you can fit the duct into your case then you'll see impressive cooling from the kit - but if not, you'd be better off with the FKK-50, which is smaller and yet, with a little work (move the fans to the middle) cools better than the VOS-32 without the duct. When you take into perspective the fact that the FKK-50 sells for AUD$45.00 while the VOS-32 Plus will set you back AUD$75.00, I'd be inclined to look at an FKK-50 and buying a normal case fan - this will probably get you similar cooling performance to the ducted VOS-32 and leave you enough change to go down the pub and buy the lads a couple of rounds while you brag about how clever you are.