Many sound bars list RCA audio alongside other common inputs such as optical (digital), HDMI/ARC, 3.5mm AUX, USB (or USB-C), and coaxial. An RCA-equipped TV can usually connect directly via RCA or use one of these alternate inputs when the sound bar and TV both support them.
Many sound bars support tabletop placement and wall mounting. A few advertise split or detachable designs that allow reconfiguring modules for vertical tower placement or combining them horizontally, giving flexible setup options.
Options vary: some list a subwoofer output for an external sub, some advertise built-in bass features such as a ported tube or built-in subwoofers, and others are 2.1 designs with internal sub drivers.
Most listings show multiple inputs, typically ranging from 2 to 4. Common ports include RCA, optical, HDMI/ARC, 3.5mm aux, USB or USB-C, and sometimes coaxial.
Specified frequency response ranges include examples like 60 Hz–20 kHz, 100 Hz–18 kHz, 45 Hz–20 kHz, and several listings that state 20 Hz–20 kHz. A few entries omit a clear range.
Commonly included accessories are a remote control, power adapter, and one or more audio cables (for example optical or 3.5mm). Some models also include wall-mount hardware and a user guide.