"PSB's Alpha PS1s have tuneful bass, tangible mids and a sweet, airy treble. They are conservatively rated: their performance goes beyond the power and bass extension ratings. They also have an uncanny imaging quality that lends itself to desktop listening in the nearfield. On the test bench, these little speakers measured very low levels of THD particularly when you consider their diminutive size. All this equates to the PS1s' musicality which is the most important achievement of all."