The Shure SM86 is ideal for live performance and built to survive the rigors of touring. That said, if you prefer a warmer, more natural sound, and a great all around vocal mic, the Shure SM86 … The 87A is a good mic, but may be a bit raw depending on what you need it for. Final Word. The SM86 … Deliver studio-quality sound with this cardioid condenser vocal mic. Pretty incredible. I think the SM86 is the go to option, as it’s a lot cheaper and sounds more true to life. Shure SM86 Microphone. Just as the Beta 87 is the articulate sister to the Beta 58A, the Shure SM86 is a more detailed companion to the SM58 with a less aggressive sound and lower price … The SM86 is more natural sounding. The folks at Shure ran over it with a car, dropped it from 6 stories, put holes in it with a shotgun, and it still worked. Overall Sound. Being a condenser microphone, the SM86 is more prone to background noise, while the SM58 rejects it better. Rating and Reviews: Shure SM86 Microphone.