Sendspin Multiroom Audio

Your Hi-Fi.
Everywhere.

Stream music to any stereo with an optical input. Pre-configured for Home Assistant. No subscriptions, no cloud, no compromise.

Notify Me at Launch How it works
Respun Audio Linus - Optical Audio Streamer
June 2026
Launch Date
Instant Setup
Toslink Optical Output
Home Assistant Native
No Cloud Required
Open Source Firmware
Meet Linus

Optical Audio
Streaming,
Simplified

Linus connects your existing stereo to your Home Assistant setup via Toslink optical output. Stream Spotify, BBC Sounds, or anything Music Assistant supports — directly to your hi-fi. No DAC degradation, no ground loops, just clean digital audio.

Notify Me at Launch
Output
Toslink Optical
Protocol
Sendspin
Connectivity
WiFi 2.4GHz
Power
USB-C 5V
Processor
ESP32-S3
Price
Coming Soon
Respun Audio Linus
Dead Simple

Up and Running
in Minutes

01

Plug In

Connect Linus to your stereo's Toslink optical input and power via any USB-C charger.

02

Connect WiFi

Join the Respun Audio hotspot on your phone, enter your WiFi details. Done.

03

Adopt in HA

Linus appears in Home Assistant automatically. One click to adopt.

04

Play Music

Open Music Assistant, select Linus as your player, and stream anything.

Works with Home Assistant

Built for the
Open Home

Linus is a native Home Assistant device. No third-party integrations, no cloud accounts, no lock-in. It uses the Sendspin protocol — the Open Home Foundation's open standard for multiroom audio.

Now Playing Linus — Living Room
Track Something Good — alt-J
Source Spotify
Volume — 65%
Playing
Optical Out
WiFi ████
ESPHome
Coming June 2026

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Drop your email and we'll let you know the moment Linus is available to buy.