videos in AudioSet
A list of about a million ten-second YouTube clips, each labelled with the sounds in it, that Google published in 2017. Labs use it to train and test general audio and music models.
Including SoundStage! InSight -- PSB's Imagine T3 Loudspeaker, Muraudio's Domain Omni Series Speaker | SoundStage! InSight (March 2014), McIntosh MC275 Stereo Amplifier