Supported Connections, Inputs, and Outputs for Echo Link and Echo Link Amp

To play music, connect Echo Link or Echo Link Amp to speakers or your stereo system.

You can use your Echo Link or Echo Link Amp to stream music to your directly connected speakers or stereo system.

You can find technical details on the product detail pages for Echo Link and Echo Link Amp.

Analog Input and Output Specifications

• Analog Line-in (L/R stereo RCA): 1.3Vrms (Consumer) or 1.9Vrms (Professional), adjustable in the Alexa app
• Analog Line-output L/R stereo RCA, subwoofer RCA): 1.9Vrms

Supported Digital Connection Formats

• Digital Audio Inputs (optical TOSLINK and coaxial RCA) - Uncompressed PCM audio (Sample rates of 44.1, 48, 88.2, 96, and 192kHz)
• Digital Audio Output (optical TOSLINK and coaxial RCA) - Maximum output of 48kHz Uncompressed PCM stereo

Unsupported Connections

• TV/video connections
• Casting to Multi-Room Music from Bluetooth input
• The Amazon Music Unlimited Single Device Plan
• Compressed digital audio input, such as Dolby DTS/Dolby 5.1.