Yes, you can connect two Echo Studio devices for stereo sound. Here are the steps to follow:

- Open the Alexa application.
- Select 'Devices'.
- Select the '+' icon at the top right and choose 'Combine speakers'.
- Select 'Stereo Pair' and follow the on-screen instructions to pair the two Echo Studio speakers.

It's important to note that the speakers must be of the same type to ensure optimum sound quality.