What is bounce? That's a question we get asked a lot, so I'll break it down for you in a way that I think makes a lot of sense. Here we go....
Bounce relating to your wedges can be summed up as the likelihood the wedge will "bounce" off the ground. A high bounce degree is usually between 12 to 14 degrees. A wedge with that much bounce will resisting digging into the ground, and at impact the leading edge of the wedge will sit off the ground rather than make contact with the ground. High bounce wedges are ideal for hitting shots out of soft bunkers or soft ground because there is a limited chance that you will chunk it.
A low bounce wedge usually between 6 and 8 degrees of bounce is designed to allow the club to slice into the ground - ideal for firmer conditions like hard fairways or tight shots around the green.
A mid bounce is usually between 10 and 12 degrees and are the most versatile in that if you open them up at impact you can add bounce for softer conditions, and if you deloft at impact you'll also be reducing the bounce.
Usually lower lofted wedges and high loft wedges like 50 degrees and 60 degrees respectively - will have lower bounces - with the usual sand wedge lofts between 54 and 56 degrees will have higher bounces.
Bounce is your friend, if you understand how to use it. It can help the club perform the way it is designed to, as long as you understand bounce and use it to your advantage!
Hope that helps!