Complex sentence: The first Naim power amp, the NAP160, was sold in 1971; the two-channel NAP 250 amplifier, launched in 1975 is perhaps Naim Audio's most well-known product.
Split into simpler sentences: The first Naim power amp, the NAP160, was sold in 1971. The two-channel NAP 250 amplifier, launched in 1975 is perhaps Naim Audio's most well-known product.