Some further info regarding the S2's..... The S2's have been formally titled the
Atmosphere S2. Get it?
The S2 is a modular height/surround/upfiring unit that completes the Cinema Series lineup. When placed on top of a Cinema M6 bookshelf speaker, the S2 is angled to reflect sound off the ceiling of a room to create the illusion of sound coming from above. The bottom of the cabinet also contains two keyhole brackets that enable the speaker to be physically mounted on a wall or ceiling; the ceiling mounting option is recommended for the best audio experience. A neat speaker wire channel will also feature at the bottom of the speaker’s cabinet, allowing for speaker wire to reach the S2’s terminals unhindered when flush against a flat surface.
The S2 will be a sealed cabinet design unit and enjoy the same non reflective finish seen on the Cinema Series. The S2’s cabinet is angled downward on the front, with a tilt (or slant) to one side, which allows the speaker to angle sound upward when placed on top of speakers that are toed-in.
The overall size of the speaker is relatively small (5.9-inches H x 9.1 W x 8.7 D) and relatively light-weight.
The speaker’s driver topology is a coaxial dome/woofer design where the 5.25-inch coated paper woofer acts as a wave guide for a 16mm soft-dome tweeter. The S2 has a nominal impedance of 4 ohms, and a decently power hungry sensitivity of 86 dB. XTZ reports that the speaker’s frequency response (150 Hz -25 kHz) roughly extends down to 120 Hz when measured in-room.
Bron Jag @ Epic Home Cinema (verkoper van XTZ in UK)