IR 2135 or the IR 2135 QTI Impact Wrench?

What are the main differences between the Ingersoll Rand 2135 Titanium 1/2 inch impact wrench and the 2135 with Quiet technology? I am considering the getting the Titanium with the quiet technology but I am concerned I may lose some power and if that is the case, I will just get the regular 2135.

Ingersoll Rand produces the highly successful line of Titanium impact wrenches and they have been a big hit in automotive shops across the country. Ingersoll Rand then introduced the IR 2135 QTI impact wrench with Quiet Technology. This reduced the sound level from 101 dBA down to 86 dBA. It is a common misconception that there is a reduction in power due to the reduction in dBA. However, there is no difference between the IR 2135 and the IR 2135 QTI. It is simply a choice of sound preference. For example, ff you work in a small area with bad acoustics, the impact wrench with Quiet Technology may be the choice for you.