--- title: "Home Theater Direct" description: "Home Theater Direct is a Marketplace integration for Home Assistant. It has 69 installs sharing analytics, works locally and was last updated October 3, 2026." canonical: "https://vulpo.app/integrations/marketplace/theharshl-htd-home-assistant" url: "https://vulpo.app/integrations/marketplace/theharshl-htd-home-assistant.md" last-updated: "2026-10-22" version: "1.4" --- # Home Theater Direct > Home Theater Direct is a Marketplace integration for Home Assistant. It has 69 installs sharing analytics, works locally and was last updated October 3, 2026. Home Theater Direct is an integration for HTD MC/MCA-66 and Lync whole house audio controllers. It talks to the controller locally, over a network connection or a serial USB link, and Home Assistant can discover it on the network. Each zone gets a media player with power, volume, mute and source selection, plus bass and treble sliders and a balance slider that is hidden by default. Lync units also get a Do Not Disturb switch per zone, which controls party mode and all-zones-on exclusion. Zone and source names are read from the controller and can be overridden, unused zones can be hidden, and the selectable sources can be limited per zone. A source ID attribute keeps a fixed source position so automations still match after a source is renamed, and an option can show the last known zone state while the amplifier is off. Automatic summary of the README and code of theharshl/htd-home-assistant. Something wrong, or are you the maintainer and want your own text here? [Get in touch](https://vulpo.app/contact) [Open in My Home Assistant](https://my.home-assistant.io/redirect/hacs_repository/?owner=theharshl&repository=htd-home-assistant&category=integration) On Home Assistant 2026.11 or newer? [Open it in the Marketplace](https://my.home-assistant.io/redirect/marketplace_repository/?owner=theharshl&repository=htd-home-assistant&category=integration) ## Supports - **Works locally**: Talks to your devices on your own network. No vendor cloud in between. - **Found by itself**: Home Assistant spots it on the network and offers to add it. - **From the Marketplace**: Installed through the Marketplace, formerly HACS. - **Actively maintained**: Its author released or pushed a change in the last six months. ## Setting it up Install it from the Marketplace and restart Home Assistant, then add it under Settings, Devices and services. ### Connection Type - **Connection Type** ### Home Theater Direct - **Host name or IP Address** - **Port** ### Home Theater Direct - **Serial device path** ### Device Setup - **Device name** ### Zone Names - **Zone 1** - **Zone 2** - **Zone 3** - **Zone 4** - **Zone 5** - **Zone 6** - **Zone 7** - **Zone 8** - **Zone 9** - **Zone 10** - **Zone 11** - **Zone 12** Also asked when at the zone filter step. ### Source Names - **Source 1** - **Source 2** - **Source 3** - **Source 4** - **Source 5** - **Source 6** - **Source 7** - **Source 8** - **Source 9** - **Source 10** - **Source 11** - **Source 12** - **Source 13** - **Source 14** - **Source 15** ### Per-Zone Source Filtering - **Enable per-zone source filtering** ### After setup - **Host name or IP Address** - **Port** - **Serial device path**: For serial devices, prefer a stable path under /dev/serial/by-id/ over /dev/ttyUSBx. - **Device name** - **Restore last known state when the device is offline**: Show each zone's last known state instead of Unavailable while the amplifier is off. Home Assistant will mark these entities as assumed state, because a zone changed at the keypad while Home Assistant was down will read incorrectly until the amplifier reconnects. - **Zone 1** - **Zone 2** - **Zone 3** - **Zone 4** - **Zone 5** - **Zone 6** - **Zone 7** - **Zone 8** - **Zone 9** - **Zone 10** - **Zone 11** - **Zone 12** - **Zone 1** - **Zone 2** - **Zone 3** - **Zone 4** - **Zone 5** - **Zone 6** - **Zone 7** - **Zone 8** - **Zone 9** - **Zone 10** - **Zone 11** - **Zone 12** - **Source 1** - **Source 2** - **Source 3** - **Source 4** - **Source 5** - **Source 6** - **Source 7** - **Source 8** - **Source 9** - **Source 10** - **Source 11** - **Source 12** - **Source 13** - **Source 14** - **Source 15** - **Enable per-zone source filtering** - **Source 1** - **Source 2** - **Source 3** - **Source 4** - **Source 5** - **Source 6** - **Source 7** - **Source 8** - **Source 9** - **Source 10** - **Source 11** - **Source 12** - **Source 13** - **Source 14** - **Source 15** Texts from the code of [theharshl/htd-home-assistant](https://github.com/theharshl/htd-home-assistant). ## From the README > This integration adds support for the Home Theater Direct line of Whole House Audio to Home Assistant. > > - Auto-discovery via DHCP (MAC prefix A44F29\* / A64F29\*) > - Per-zone power, volume, mute, and source selection > - Zone and source names read automatically from the controller on connect > - Customize zone and source names during setup or at any time via the integration's settings > - Hide unused zones so only the zones you care about appear in Home Assistant > - Per-zone source filtering — restrict which sources are selectable per zone > - Per-zone Bass and Treble sliders (enabled by default) and a Balance slider (hidden by default) > - Per-zone DND (Do Not Disturb) switch — controls party mode / all-zones-on exclusion (Lync only) > - Device rename via the integration's settings — no need to delete and re-add > - Serial (USB) or network connection From the README of [theharshl/htd-home-assistant](https://github.com/theharshl/htd-home-assistant#readme), [MIT License](https://spdx.org/licenses/MIT.html). Shortened. ## At a glance - Kind: Marketplace integration - Category: [Media and entertainment](https://vulpo.app/integrations/category/media-and-entertainment.md), TV and streaming - Number: 69 installs sharing analytics; 2 GitHub stars - Connection: Works locally - Upkeep: Updated in the last 6 months - Needs: Needs the Marketplace (HACS on 2026.10 and older) - Latest version: v0.0.40, last updated October 3, 2026 - Domain: `htd` - Source: - Issues: In Vulpo: Quick Toggle card, Media Player card, Apple Watch, Control Center Independent directory, made by the developer of Vulpo. Not affiliated with Home Assistant or the Open Home Foundation. [About these numbers](https://vulpo.app/integrations/about) Last updated 2026-10-22. 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