What do you think about the Rockville APM10C 10" Powered Sub for my Equator D5's?
I am looking to enhance the bottom end of my studio monitors and this is an affordable solution for me. 
I was going to purchase the ARC 2 or Sonarworks room EQ software but then thought w/o a good bottom end, the D5's will not be able to makeup for that. 
So instead, I am now thinking about getting this sub and then later go for ARC or Sonarworks. 
Has anyone an opinion of the Rocville APM10C?
https://www.amazon.com/gp/product/B01DN3VLBM/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=A3LLMZ9K72U9P2
 
TIA.
Rimshot
 

So I ordered the Rockville subwoofer and also Sonarworks to help with my studio's room tuning. For me, I think this will be a great combination to work with. 
The Rockville has a footswitch input to bypass the sub and HPF which will help with mix monitoring.
I selected Sonarworks because it the reviews have been stellar and it seems to have more depth than the ARC 2. Time will tell since I have never used this kind of software. 
 
Seasons greetings.
Rimshot