If I had to choose between the Airmotiv 4 and the JBL305 just for mixing I might just lean toward the JBL305 because more users are using dome tweeters than using a folded ribbon tweeter. I personal know that the JBL305 will work well since I have not heard the Airmotiv 4. You still have to learn the characteristics of any monitor to have predicable results to the end users. I am going to bow out here for a while take care!