Air Conditioner Compressor Making Hissing Noise

Almost like an air compressor.

The only thing better than this would be an air compressor! Buy it!

I’m a drummer and I need something that will be audible clearly even with a loud instrument such as a drum set. Even though, this is enough already for monitoring purposes, which is not critical as far as noise (Hissing) goes, this device happens to have NO noise, no hissing whatsoever. If whatever source of audio you plug in, and there is hissing, humming etc, it’s your “whatever” that’s causing the issue. This unit not only has clean audio, but it’s LOUD. So loud that will satisfy anyone but will damage your ears if you’re not careful. If you want LOUD, the Polsen PMA-2B will deliver. To use it from a mixer: simply run a pair of XLR OUT cables from the mixer to the PMA-2B. Try to keep the levels from your mixer not to exceed 0db and no EQ for the best and cleanest sound. I also like the many ways to attach this unit. It has a belt clip, a solid 3/8 mount plus a shoe mount! To use you iPhone as the source since it doesn’t have XLRs: But this cable: Stereo Male XLR to Stereo Male 1/8” TRS. (Assuming you have the Apple lighting adapter) and you’re done! And again, it’s plenty loud. I only wish the PMA-2B had those dual purpose XLR female inputs that accepts either XLRs or Mono TS plugs (each channel) for even more versatility when XLR is not viable. Overall, price is right, ALL METAL, good electronics, no hissing and it’s LOUD. What else could you want? I’m pretty happy with mine. Also, check out the images I provided on my reviews. They can be useful to you. [I have received this product in exchange for my honest review].

The sound quality on this is great, although you do have to google how to take away a slight hissing noise that persists until you set it up correctly. One that's done, it's fantastic! I like it a lot, and looks very professional, esp since I'm no longer using my provideocam to shoot, which always has a pro look when you enter a room.

We have it for everything, Air-Conditioner panel control, Land line phone, Toys Etc',

I have a small computer business. For years I have been using a small air compressor to do the job I bought this for. I have now used it on a few computer repairs to clean out the cases and fans. works great!! blows every bit as hard as the air compressor did, but I don't have to wait ten minutes to use it. plug it in, hit the button, and hold on because the wind is gonna blow!

We use this case to carry a small air compressor. It is very durable and the shoulder strap is great. It would be nice to have more color options.

This works great for powering my portable fridge in my SUV. If needed it can run my little air compressor that I keep in the car. I can use it to get power outside so I don’t have to run an extension cord. It goes where I go so I can run just about anything including my reciprocating saw and hand held grinder. If the grid drops, I can run some essentials (although I use my Delta Pro for bigger things). Oh, it also charges fast!

Awesome. Its not the same as dedicated pressurised air from a compressor, but still highly effective for dusting off computers, and keyboards. Its also quite good for cleaning my bike, although it does not have the power nor pressure pressurised air would have.The only advantage canned air has are small confined spaces such as small gaps, because here the DataVac is simply too large and the airflow not concentrated enough to be effective. Keyboards however are no problem for the DataVac.Another downside: Its noisy (roughly like a Dyson vacuum cleaner).

In the recent past i had to carry around an air compressor to blow out dust and other objects from the inside of pianos. on one service call my back was out of sorts so my customer told me she had this blower which she used on curtains and windows and other hard to get to places. I tried this one the piano and literally was blown away . This tool is unreal. small, light, powerful.