Hi Cyprest,
I understand what you mean about "same frequency response", and you do have a point.
However, in most surround sound setups, all the main and surround speakers are crossed over at 80 or 100Hz, so having surrounds that play down to 50Hz isn't all that important.
Plus, even though the M22s are rated to play "down to 50Hz", they won't do so with any authority. Yeah, you'll get a 50Hz tone out of them...but nothing like a 50Hz tone out of a 15" Shiva with a 800 watt amp on it.
80Hz/24db oct is the commonly used cutoff for the M22s (AFAIK)
I do plan on getting a second set of QS8s for my rear surrounds.
