Sound quality: Polk Audio's Omni S6 had good overall sound quality. Bass has good impact but is prominent and boomy and bass goes fairly deep. Midrange is fairly even but soft and "far away" sounding. Treble is fairly extended but pronounced sizzly and smeared. The unit has an echoey sound quality that overwhelms any natural room ambience it may be recovering from the recording and is a bit congested. Lacking in fine detail. Wireless sound quality is similar to line-in sound quality. Provides a decent volume level in a large-sized room. When two units are used as a stereo pair, sound quality changes with the pair sounding warmer, somewhat muffled and congested, but since two separate speakers are used, the sound stage can be made wider, depending on placement and room ambience. When paired, it also lost some of the "echoeness" present as a single speaker, but audio quality didn't improve.
Ease of use: We found the system's ease of use to be good overall. The volume controls are obvious, yet low contrast, marked +/ -, that works with WiFi and with the Aux inputs. The mute control is unlabeled, though well placed with an indication when engaged. Switching sources between WiFi and Line-in involves plug/unplug, where the one playing takes priority. No need to switch, line-in audio plays, but is automatically overridden by connected wireless audio playback, when wireless audio is stopped line-in audio resumes. If Aux is playing and Wifi audio is selected to play, you are prompted with a "take over" message, at which point you need to click ok on app and Wifi will play. The Polk Audio Omni S6 connecting to a WiFi network is fairly easy overall. The easiest is via WPS, which is as simple as pressing a WiFi button on rear of unit, a beep is heard then press the WPS button on router, wait for connection. Connection occurs within a minute, but lacks any tone and has a clear visual indicator (white LED stops blinking and becomes solid white when paired). DLNA: Manual explains the function and its limitations and refers to app for setup and additional instructions. WiFi Setup: Requires the download of an app and following app instructions to complete setup. Intuitive. The app as a remote is adequate, didn't allow selecting the line-in as a source and where the responsiveness of the app with the unit occasionally lagged.
