The first version of this deck, the N2537, was introduced at the end of 1978. It was a black rack mountable model offered as matching component for the Philips Flat Line Top Components - The Black Tulip (170T tuner, 270SA pre-amplifier and 370PA poweramplifier). A year later, in 1979, the N5421 presented here was introduced as the matching silver component for the AH799 Top Receiver. Visually they match perfectly adopting the same turn-knob design. In the same year Philips introduced the Sound Project Series components where this same cassette deck was named N2537 again, but this time with silver front and different turn-knob design. As the Sound Project components were available as rebadged models under several Philips sub-brand names this deck can be also found as ... read more