Jean-Pierre

To whom it may concern: I am thinking of buying the Sony HAP-S1 unit with 4 Sony SS-CS5 speakers, since the HAP-S1 unit only has one output for a pair of speakers, what amplifier should I consider from Sony? https://www.sony.ca/en/electronics/audio-components/hap-s1 https://www.sony.ca/en/electronics/speakers/ss-cs5 Looking forward to your thoughts. Thanks in advance!