Introducing the OB-4, the portable HiFi speaker with two 4-inch deep tones and two neodymTreble that deliver crystal-clear, open, and natural sound at 38 watts per channel – this is around 100 decibels of incredible stereo sound. listen to line input, Bluetooth, FM radio and hard drive. The user interface is minimal and contains only the things you really need. But when you look under the surface, there is much more than the eye.
Customer Reviews, including Product Star Ratings, help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
