Quad Z-3 (Piano White) Floor-standing speaker at Crutchfield
Z-Series - Quad
Aeotec WallMote Quad, Wireless Zwave on Off Switch, Z-Wave Plus Enabled, 4 Zwave Button, 16 Scene Wall Switch with Remote Control, Work with Z Wave Hub - - Amazon.com
Are Ribbon Tweeters the best? Quad Z2 HiFi Speakers Review - YouTube
Quad Z-2 Loudspeakers available from Hifi Gear
Z-4 - Quad
Quad Z-3 Floorstanding Speakers (Pair) at Audio Affair