Solitaire TThe Solitaire T From the first day the Solitaire T was developed with a single goal in mind: to blur the distinctions between audiophile, working and travel headphones by making the values and convictions which are the hallmark of every T+A product accessible in almost every situation in life. Their transducer system is a completely new development, capable of reproducing the most subtle nuances in audiophile quality in active and passive mode alike,