Sound quality: The Heos 1 HS2 had good overall sound quality. Bass has decent impact and is fairly detailed but a bit soft and the deepest bass is lacking. Midrange is fairly even but a bit hazy and grainy. Treble is extended but dry, upper treble is a bit smeared, and lacks treble air. Mono: Does a so-so job of recovering room ambience, sounds a bit congested and is lacking in detail. No significant difference between WiFi, Bluetooth, USB and wired sound quality. Provides a decent volume level in a small to medium sized room. Stereo pair: Does a decent job of recovering room ambience and has more complexity and detail but still sounds a bit congested and hazy but scores very good.
Ease of use: We found the Heos 1 HS2 ease of use to be very good overall. To connect the Heos 1 HS2 via WiFi involves downloading the Heos app onto the compatible mobile device and following the app directions and select the network and enter password, also connecting the aux cable to mobile device. To setup via a PC, you need to follow more steps but setup remains good overall. Unfortunately, DLNA setup lacks any description or instructions. Bluetooth: Bluetooth pairing requires a press of a well marked button on rear of unit and then the selection of unit from Bluetooth selection list on source device; unit provides an obvious indication that the unit is in pairing mode as well as when pairing has actually occurred. Bluetooth is also an unmarked multifunction control to reset unit. Console controls are generally good though they are not prominent and nothing to indicate that it is a volume control except + and - symbols and there are no volume level markings and does not indicate when you reach the max or min settings. Works with line in, USB and Bluetooth inputs. There is an excellent mute control. The remote control app is generally very good and mostly intuitive. Switching between sources is easy accomplished with the Heos app.
