If I were in your shoes, I'd probably stick with the cheaper microphones, depending on the environment. With the details provided, it doesn't sound like it's a case where people get more careless as the night goes on (I have a friend who switches mics halfway through the show once the crowd starts getting more drunk), but a place that the main issue is the food and other things which, I imagine, could damage the mics if it got into the workings of it.

used Sennheiser for many years and never had to replace any of them. they are bulletproof, even getting dropped and even thrown across the room (she saw her guy hitting on another woman) they never once failed. i have replaced GTD mics, but never a Sennheiser.

I went back to using my Shure SM58 wireless systems(middle quality, not top or entry grade) Yes they get accidently dropped on occasion but only dents the ball which i simply replace. Been in service for about 5 years now

Which model do you have? The wireless set that I have uses a e835 capsule, just like the wired version, but unlike the wired version, the body is ABS, not metal. Although, one of the benefits of ABS plastic is supposed to be strong impact resistance.

Maybe, I'll start using them and see how it goes.

By going back to the Shure SM58 wireless, did doing so eliminate the distortion from the loud singers and screamers who have their mouth right on top of the mic? I understand that the SM58 can handle high sound pressure levels a lot better.

The comp4essor will not eliminate or reduce the distortion levels since the distortion is coming from the mic receiver but it will reduce the volume of the louder passages so distortion may not seem as noticeable.

Let us get one thing clear, karaoke singers are not professional singers, they know little or nothing about controlling the mic, like most professional singers do. After doing this for years I have run the full course on hosts and singers in my local area. Some hosts I can hold the mic down at my waist and you can still hear me fine, others you can shout into the mic and it is hard to hear the singer over the music, and everything in between. At the end of the day you have to ask yourself do you really want mostly non-professional singers handling your expensive mics? I know some of you want to have the best karaoke experience possible for your patrons, on the other hand who can afford to have delicate equipment damaged and spending money to replace it?

At the end of the day you Alan are running a business, where you have to cut your overhead as much as possible, since the profit margins like every other business are being squeezed. That is why I use rechargeable batteries in my mics to cut down on the cost of replacing batteries, it is little things that can aid your bottom line. I mean after all if you are making 150.00 a gig you do have to deduct expenses, such as replacement of damaged equipment, the venue isn't going to pay for it.

The solution is to have decent mics such as the GTD's or other mid range acceptable alternatives, please don't go ultra cheap, like Vocal Pro like some local hosts have.

So, I can easily hand my good mics to the singers who actually know how to use a mic and that I trust... and for everyone else, give a GTD Audio mic.

Shure 58’s are tanks, no doubt about it! They’re probably your best bet for singer’s use, simply because they’ll take a beating, and still function. As for screamers, if you don’t already have one, you might consider a compressor/limiter. I’ve had a few idiots in my day try to do a primal scream into the mic, and my trusty DBX saved the day, on more than one occasion!
Just my 2 cents……