QUestion about resistors.

Using xsim to design a quick crossover and the resistor that pads the tweeter down just right is a "1.5R" resistor... I cant find any information on this anywhere. What is that? Im guessing its 1.5 ohms? But maybe not.

If anyone can help that would be much appreciated, thank you.
 
Using xsim to design a quick crossover and the resistor that pads the tweeter down just right is a "1.5R" resistor... I cant find any information on this anywhere. What is that? Im guessing its 1.5 ohms? But maybe not.
R symbol is directly available on any keyboard; Ω Greek Omega symbol is well hidden, in fact I see it now, not sure you do, you might get a small square or an empty space or a different symbol, go figure, so using R for ohm became popular.