" Mb1 you can adjust or not to personal preference but I was talking about flat response to 20 hz. If response is flat level will be heard as lower. A boost is needed to make it sound flat. Check out the audio frequency spectrum chart that shows sensitivity of the ear at various frequencies. System may measure flat but in that case what our ears hear is not. "
That's what I thought you meant, and I believe you're right. I could be mistaken, but I think bo is saying something similar regarding his comments on bass. If some type of correction isn't done in the low frequencies, I can see where this could be an issue at low volumes. Powered subs set up properly can go a long way in this regard. I wouldn't consider myself an expert in this area, but from what I can see, subs are best used with full range speakers.
That's what I thought you meant, and I believe you're right. I could be mistaken, but I think bo is saying something similar regarding his comments on bass. If some type of correction isn't done in the low frequencies, I can see where this could be an issue at low volumes. Powered subs set up properly can go a long way in this regard. I wouldn't consider myself an expert in this area, but from what I can see, subs are best used with full range speakers.