Buzzing Noise On Battery Karaoke Machine

I have been using the PST8 power station for about two weeks now to replace my $10 cheap power strip. I mainly bought it to attempt to resolve an audible buzzing noise in my headphones when connected to a desktop headphone DAC/amp. After plugging the DAC/amp directly into the PST8, the buzzing noise went away entirely. This was with both the digital filter outlet as well as one w/o filtering. Either way, I'm pretty confident the PST8 is delivering much cleaner power and that it resolved my specific issue. Happy with the purchase, although note this is much bulker than it appears in photos.

Yep, this solved the buzzing noise I was getting sometimes when the fridge was running. It seems very well built, and the positioning of the outlets is well-thought out so that I can arrange just about any combo I have tried without covering up outlets, thereby rendering them useless. No complaints. The cord is good quality and long enough to be useful in places where outlets are sparse.

We use it mostly to connect SM58 to Pioneer Karaoke machine and match the impedence. Works great.

I bought my wife a Karaoke machine for Christmas which was two 1/4 microphone inputs on it. I was thinking how cool it would be to have wireless mics so people could hand them off as songs changed, instead of being limited by a cord, and having to swap seats. The WMS40 fit the bill PERFECTLY. I was a little concerned, with the low price, that the quality wouldn't be there, but the system is static free and sounds GREAT! I used balanced 1/4 cables (pulled from patchbay) to connect the microphone base unit to the Karaoke machine. The distance from the singers to the base unit is under 30 feet so I can't speak for the range of the unit.

I needed something fast for a public talk and I have no expertise in AV. This is basically a karaoke machine with 2 mics, super fast set up and was good to go in 5-10 minutes. It is completely adequate for speaking engagements. The speaker is a little larger than I would have liked but it was a good purchase for novices who just need to get up and going asap.

[This review was collected as part of a promotion.] I put these in my daughter's karaoke machine and it had provided exceptional life to the electronics!

It's just perfect for what we need. Sound cranks. The microphone makes it an instant karaoke machine. Just great device.

No rattle or buzzing!

5 stars! Stable and very easy to adjust level with slider on.

Occasional buzzing feel but other than that amazing!