Cheapest low back pressure 5.56 can?

What is the best low back pressure 5.56 Can for the price? I know the Velos LBP is $1,000, the CAT WB is $1,150, etc…

Is there anything that is great at sound suppression, low back pressure, and more affordable?

What are the options?

(BTW, my priorities are: 1. sound suppression at the shooters ear 2. over all sound suppression, and then 3. low back pressure)