Add documentation for ws66i core integration (#19294)

CODEOWNERS

@@ -640,6 +640,7 @@ source/_integrations/wled.markdown @frenck
 source/_integrations/wolflink.markdown @adamkrol93
 source/_integrations/workday.markdown @fabaff
 source/_integrations/worldclock.markdown @fabaff
+source/_integrations/ws66i.markdown @ssaenger
 source/_integrations/xbox.markdown @hunterjm
 source/_integrations/xbox_live.markdown @MartinHjelmare
 source/_integrations/xiaomi_aqara.markdown @danielhiversen @syssi

source/_integrations/ws66i.markdown

@@ -0,0 +1,33 @@
+---
+title: Soundavo WS66i 6-Zone Amplifier
+description: Instructions on how to integrate WS66i 6-Zone Home Audio Controller into Home Assistant.
+ha_category:
+  - Media Player
+ha_release: 2022.6
+ha_config_flow: true
+ha_iot_class: Local Polling
+ha_quality_scale: silver
+ha_codeowners:
+  - '@ssaenger'
+ha_domain: ws66i
+ha_platforms:
+  - media_player
+---
+
+The Soundavo WS66i 6-Zone Amplifier integration allows you to control the [Soundavo Whole-Home Audio Amplifier](https://www.soundavo.com/products/ws-66i) via the local network. This amplifier is an upgrade of the amplifier sold by [Monoprice](https://www.monoprice.com/product?p_id=10761) that adds 2 built-in wireless streamers and an Ethernet port for control over LAN.
+
+{% include integrations/config_flow.md %}
+
+## Configuration Notes
+
+Enter the IP Address of the WS66i amplifier when prompted to connect to the device and hit submit. It will detect the number of connected amplifiers and present each zone as an entity.
+
+- 1 Amplifier: Zones 11..16
+- 2 Amplifiers: Zones 11..16, Zones 21..26
+- 3 Amplifiers: Zones 11..16, Zones 21..26, Zones 31..36
+
+Once detected, you can add them to an area.
+
+## Source Management
+
+You can configure source names by hitting the **CONFIGURE** button in the integration card.