ePRB heard: Borderline Distortion or Some distortion
Both are correct as this speaker has a low level of distortion and your response is subjective. If you are an inexperienced listener, you may even have rated this as ‘not sure’ – if you can discern something just sounds a little ‘off’. Well done if you could detect the distortion on this speaker – many people can’t! Using this algorithm in real life, you would set the detection threshold at whatever phon level you want to correlate with desired audibility.