Real Time with the SM58

As much as I bitch about the Shure SM58, my recent experience with that blunt instrument has been as rare as possible. I really do dislike the damn things and recent familiarity bred a whole new level of contempt. 

Last night, at the Sheldon Theater’s Open Mic I had that dreaded experience for three different performances (as a vocalist and backup singer) and was reminded of how primitive that 1966-designed mic really is. 1^st, the pop filter is a joke. At distance, for example the unspecified distance used in the Shure spec shee (at left), you'd think the 58's LF response would be fairly useful for vocals. Best I can figure, that distance must be at least a foot if not a meter. Anything within a could of inches from on-axis to the 58 gets a burst of breath noise that is unlike any other microphone sold today. If you don't roll off every thing below 150Hz or even higher, plosives and breath noise will wreak any attempt at a subtle vocal. 2^nd, that infamous 3-6k bump mostly emphasizes sibilance artifacts without making any useful contribution to clarity or intelligibility. 3^rd, Shure doesn't spec "max SPL" for the 57/58 models for obvious reasons; it isn't nearly high enough for modern applications. Many vocalists are able to blow the 58 into gross overload, even without the lousy mic hyper-close technique required for their out-of-control stage monitor environment. Likewise, the 57 is famous for it's contribution to the distorted sound of loud electric guitar. 

The spec sheet's description of the 57/58 polar pattern isn't anything I have ever put much faith in, either. You'd think that the damn thing was practically flat and feedback-predictable based on that highly creative illustration (see at right). In practice, that would be anything but true.

All of those 50+-year-old "qualities" have been improved upon by everyone from Shure to AT to Sennheiser to Neumann to Audix to cheap Chinese no-name microphones costing even less than the 57 or 58. You actually have to make an effort to find a microphone that delivers worse performance today and, based on what I see on live stages, that might be the only actual work many live sound goobers do.

The one and only claim to fame the 57/58 will hold maybe forever is indestructibility. If an ability to drive nails and keep squawking is the most important thing to you, you are the consummate SM58 customer. 

POSTSCRIPT:  (8/6/2019) This past week I had a double-whammy experience with the 58 vs something better. After years of wanting to see the John Mayer live "Where the Light Is" concert, I finally managed to snag a copy. It is particularly ironic to watch Mayer agonize over which multi-thousand-dollar watch to wear between sets, swap out various overpriced vintage Strats, while his voice consistently gets slaughtered by the 58 he mindlessly sings into as if it were as well-considered an instrument as his watches or guitars. Clearly, a lot of work went into cleaning up that vocal for the final product, but there is no way to make a silk purse from a sow's ear. Mayer tends toward mushmouth qualities in the studio, but live all of the worst qualities of his voice are emphasized. What a missed opportunity. 

My 2nd experience was with recording a local country/pop songwriter in a live setting that, acoustically, left a lot to be desired. Lucky for me, the artist was open to my swapping out his 58 with a recently rebuilt EV RE18. My job, post-recording, was made dramatically easier than what Chad Franscoviak and Martin Pradler had to contend with on the Mayer live recording. Getting a clear, crisp sound from the live vocal took minimal processing and the rest of my job was working with the rhythm section and lead guitar. Regardless of the song style, tempo, arrangement complexity, or vocalist's technique, the vocal sat where it belongs at the front and center of the mix. The fact that the artist's technique is excellent didn't hurt, but the fact that I wasn't wrestling with garbage-in/garbage-out was equally huge.