Summary: Not amplified (which I knew), and not much filtering (there is an on/off switch on the back for the filter mode, can't tell that it helps much), but overall has a nice, clear, rich sound. Not tinny or cheap sounding. Appears to be solid and well made. Bought for my second-hand Yaesu HF rig that I picked up from a hamfest. Build-in speaker is on top, wanted external speaker to face me. Happy with the purchase.
Summary: its a great add on to your CB Radio excellent sound and clear.. and its almost a little too loud but works great for the off-road warrior with all that noise on the road it make it easy to hear with this Speaker..
Summary: I just tried this speaker with my Amateur Radio Station. It works great for the purpose it was intended. it was pointed out that this was a communication speaker, and it would appear that that point was missed by some reviewers. The speaker wasn't intended for loudness or high fidelity, but rather as a device that would reduce the hiss and noise we all experience because of switching power supplies, the new variety of light bulbs and other generators of radio...
Summary: Use this everyday in my Semi with my Uniden pc 78xl Cb and the sound is crisp and clean and plenty loud enough with all the road noise and background noise in the semi. Definetly worth the price.
Summary: I bought this product to put in my work truck. I was having issues of hearing my cell phone with volume. I was not able to clearly hear the phone, music, or GPS. I saw this item on amazon. It was exactly what I needed. I was small and compact with plenty of power. I was so excited when it arrived. What I got was a big and bulky speaker. No problem. I can adapt. I can still mount it in my work truck. I did just that. I put it next to my head rest. Now the moment of truth.
Summary: I was nearly knocked out of my chair when this item arrived less then 24 hours after ordering it (I used standard shipping). The product is wonderful. Great audio, and miles ahead of any standard radio speaker. I'd recommend this product to my own mother 7 days a week and twice on Sunday. Hope that helps.