The Rotel RT-870 is an analog FM/AM tuner known for its well-balanced audio performance and robust design. It features a sophisticated 6-gang front end, improving its selectivity and sensitivity when tuning into radio stations. Users have reported that the RT-870 delivers an open and spacious sound, with a good balance between bass, midrange, and treble frequencies. In terms of construction, it has a fully discrete output stage and includes several internal components like polystyrene capacitors and ceramic filters that enhance sound quality. The tuner also offers wide and narrow IF settings for both FM and AM bands, allowing for customizable reception characteristics. Many enthusiasts regard it as a solid choice among vintage tuners, particularly praising its high output level which contributes to its perceived audio quality during comparisons with various other high-end models. Certain users have noted that, despite being slightly shy on bass compared to some older tuners, the RT-870 can outperform many competitors in terms of sensitivity and overall sound quality. Overall, it blends features and performance, making it a favorable choice for dedicated audio setups.