It is not good to spend money for 2xM6. Because of limit on area, you only choose ESW8. If you have extra money to buy HR8. HR8 is better than ESW8 a little.
1) 2x of ESW-M6, it is not going to improve quantity & quality of Bass?
2) the improvement from HRS-8 is not signifcant and not worth to spend additional $1.5K - $2K (I know you tell me before from other thread)?
You see, I really want to maximize the quality based on the space / $ limitation.