I know a little about audio, so it wasn't a stretch to grasp how the knobs control the effect. The folks that are freaking out don't really understand the top and bottom of the dynamic. Cheers.

I bought this because Hulu apparently can't figure out how to level their content and commercials, so the commercials are super loud compared to the programming. I feel like Hulu owes me $70.For this purpose, it works great. Rolls had been around for a long time. I have mine between my TV's output and my sound bar's input. I have the makeup gain at around 0 db, and the threshold at around -11db and then the sound bar has it's own volume control, but I imagine this will vary based on what equipment you're using. My only tiny complaint is that I had to switch from the optical output from my TV to the analog 1/8 stereo output. But I don't notice a real difference in quality. So far it's working great, and I don't have to jump for the remote when commercials come on anymore. Seriously. Someone tell Hulu to send me $70 bucks!

I was skeptical of this particular device, and it does lack many of the controls you would find on commercial audio gear. However my use is fairly simple, I want to make sure the volume level does not jump all over the place. By setting a fairly restrictive threshold, and a substantial makeup gain it does exactly what I wanted. low volume sounds are boosted, high volume sounds are reduced and the overall output is more comfortable.If you're needs are simple, and you don't want to allocate the funds and space for commercial gear, this is an excellent option.

This levels the field. Be it streaming media or broadcast this will clamp down on those loud bursts that are supposed to be limited by the broadcaster.Works well for amateur radio also.For the tech types its a limiter and preamp. Sudo AGC. It's a variable gain amplifier controlled by a user adjustable optically coupled feedback loop. An LED let's you know when its clipping . Simple and effective when set correctly.The device seems made in USA with solid steel case and controls.External 15vdc 500ma power is China but works well. The audio connectors are good quality and labeled so one actually read it. As an retired electronics tech I definitely plan on keeping this around for my audio needs.

I run audio from my TV(line out-- straight signal) through my older stereo. Audio level is fine from local TV, as they process the signal, but on Roku and YouTube, the levels can vary pretty dramatically and I've been worried about inadvertently damaging the speakers. Got the limiter, set it to about the same level (OTA, DVD,VCR Roku) and adjusted the threshold to just barely respond to those levels closest to my OTA stations (I don't have cable) and it responds to the channels/stations with the higher levels perfectly, keeping audio volume constant across the board. Input/output uses RCA unbalanced cable or 3.5 mm stereo. (I'm running RCA cable-- sounds great!) Works just as I hoped and doesn't add distortion. Very, very happy with the purchase. A fine piece of well made/built, simple to use equipment for the application I needed and ordered it for-- and at a great price. I highly recommend it for this type of application. Great service-- had the limiter in under a week.

I had to give it an output level control to get optimal levels for my needs.It works for reducing dynamics in film when listening in low volume, and to limit max sound level in purpose to save speakers and ears. It was pretty much exact what I was looking for.