The Philips RH 521 is an integrated amplifier produced from 1972 to 1975 in Germany, weighing approximately 10 kg. This model was part of a product line known for its distinctive design and functionality. The RH 521 is characterized by its unique 'fish eye' front panel, which adds to its aesthetic appeal. The amplifier was originally priced around 948 DM at launch. It is designed to provide quality sound reproduction, which is typical of products from that era. The RH 521 is often grouped with other models in the Philips series, including the RH 520 and various tuners and receivers, reflecting a range of audio devices offered by Philips during that time.
