I've ran 391's > w-mod UA-5 and 481's > w-mod UA-5. Unless the w-mod is throwning in a lot of low's the 391's have plenty. I can't believe people are saying the 391's don't have much bass??
I've ran them for about 1.5 years and they as much bass as I'll ever need. The main difference between the 391's and 481's is tightness, IMO. The 481's have the same low end but much tighter. The 391's can become "slightly" muddy and take away from the highs of the tape. The 481's have a better balance of high's and low's. Don't get me wrong, the 391's are the best mic for the price, but if you have the money for the 481's you'll be happier
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Since the w-mod has more low's, I would really like to hear what people are saying about the presence-mod UA-5 and 391's. The p-mod is supposed to have more mid's. I would think that would be a better choice for the 391's since I was putting the bass-cut on the mic's a lot. - Phil