8 Zone, 8 Source Controller/Amplifier/Receiver
CTL13188: MZC-88 Shelf Top without Keypads
CTL13188EU: Europe
CTL13188NA: Australia
CTL13188-R: MZC-88 with Rack Mount without Keypads
50 Watts per Channel x 16 Channels (8 Stereo Zones)

6 Zone, 6 Source Controller/Amplifier
CTL13166: MZC-66 Shelf Top without Keypads
CTL13166EU: Europe
CTL13166NA: Australia
CTL13166-R: MZC-66 with Rack Mount without Keypads
30 Watts per Channel x 12 Channels (6 Stereo Zones)

4 Zone, 6 Source Controller/Amplifier
CTL13164: MZC-64 Shelf Top without Keypads
CTL13164EU: Europe
CTL13164NA: Australia
CTL13164-R:MZC-64 with Rack Mount without Keypads
30 Watts per Channel x 8 Channels (4 Stereo Zones)