We are OA21 Ltd a manufacturer, or as most people know ONIX AUDIO and we build ONIX HiFi Amplifiers , we make them for you to your spec , and we have been doing that for a very long time . We have had 1000s of happy customers, and a few disgruntled ones . ( Can’t please everyone )

You buy our amps , you hook them up, you listen to them , and you grin for ages

You don’t rent them , you don’t subscribe to them , you own them .

We build them exceptionally well, for you to create lifelong memories from music and sound quality like you never knew existed . They are great value but you do have to pay for them

Nothing worth having in life is free , and nothing in life is easy.

Listen to music, not internet BS - Listen With real Amplifiers, not MP3 on phones

OA21 - ONIX AUDIO - ONIX HiFI-England