Here a picture of my GTM 14" dual SPAL fans
Its definitely nice upgrade over stock, our stock fans are smaller and curved blade type fan. These are bigger, better motor, faster, and more powerful due the straight blade type.
Here a quote from SPAL website.
Quote:
Q. What's the difference between the straight blade fans and the curved blade fans?
A. The straight blade fans provide maximum cooling for their size. The curved blade fans sacrifice a small amount of performance in return for a much quieter fan. If noise is an issue, go with the curved blade fans. If ultimate performance is the objective, use the straight blade fans.
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Source:
SPAL High Performance Cooling Fans
