Both have essentially the same sound signature. Overall it’s bright and detailed.
Switch. The main difference between these two mics is that the SM58S has an On/off switch, hence the S. The SM58 does not. The switch may seem like a pretty good feature, but it also has the tendency to create pops and other undesirables in a live setting. This can range from irritating to downright dangerous, meaning it could damage your gear in some way. The other bad thing about switches is that they tend to get turned off and on by accident. This could prove disastrous while you’re recording as well. Lol.
The Flip side. On the other side of the coin, some need the switch, as it enables them to turn off the mic so that the crowd can’t hear dialogue in between songs or sets. Heh. Some people believe that talking in between songs is taboo and the unwritten rule is that you shouldn’t. The mic is also useful for those situations when you need to turn it off because it’s too hot.
Impedance. The SM58 has an impedance of 150 Ohms, while the SM58’s is 300 Ohms.
Just for laughs, check out the durability test! These videos never cease to make me laugh out loud. SM58’s are indestructible!
Honestly I would go with the SM58 if it was me, but you may or may not need that switch. It all depends! Regardless, these are battle tested mics that simply won’t fail.
Stu is determined to provide the truth about all things audio, and strives to deliver excellent content to you the reader! In his spare time, he likes to fish, paint, play guitar, attend church, take photos, record videos, graphic design, and more. His attention to detail and perfectionist attitude are what allow him to excel, but it can be both a blessing and a hindrance at times.