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Ask about SERVICE/RENOVATION for your ONIX AUDIO OA units

We have to end this service in 2025 so be quick 
Exceptional final Deals until the end of November - Email us  

We are proud of the 100% renovation of our OA Amps
With 100% satisfaction , and 100%  return rate  

An E mail sent to us on 08-10-2025 by - Tim V, London

Hi Jason

 

You were right, absolutely blown away! I can't thank you enough for persuading me to have the 35 year service!! Not sure what you guys did, but the magic fairy dust is incredible!!

 

Jason, would you know any cd specialist repair engineers you could recommend? I've got an intermittent jumping issue with my Micromega CD player. I've had the laser replaced once a while back but that hasn't fixed it. Thought I'd ask on the off chance!

 

Many thanks again!

We designed them 35 years ago , and we renovate them now- good for another 35 yrs 

There is not ONE  original OA unit that does not need several crucial  
renovation actions to restore it to a safe and perfect performance.
You and your speakers are at risk if full renovation is not carried out
if you cut corners and only a repair  as a cheaper option 

Onix Audio Soap and OA21 www.oa21.com

 ONIX AUDIO & OA21  - Q & A Classic SERVICE

It impossible to do the job properly for less than we charge , sadly some owners think you can and we have to keep picking up the pieces of bad work, that has ruined our great  products and your speakers , so the time has come to close our 25+ service in late 2025

We renovate all of our units , we don't just repair them - They are 40 years old they all need it 

 

Customers love of our older units, rightly so,  we do too  - so we offered our renovation service for ONIX AUDIO 

Cherished products we made in the 80s & 90s  ( Classic is over 25 years old)  for years .

Keeping them musically and functionally safe WITH ORIGINAL ONIX AUDIO NEW PARTS 

We compare the finished renovation with sound to our original ONIX AUDIO amps . No one else has the ability do this

​​​​Fact is you get what you pay for in all components  less money mean less - Simple  ?  OA21 Amps are 40 years old 

They ALL need renovation, not just a "Fix " our renovation takes 5  to  7 hrs - there is a reason why !

 its a 100% certain something else will shortly follow any fault , after you "FIX IT "  its 30+  years old , 

when you take anything apart after years something will break when its disturbed .

We know how to take it apart, and in what order ,  and we know how to renovate all the case parts ( See the Video Above ) 

We know the knobs are often glued on after having fallen off, when repaired by others . The grubb screw strips the thread 

We have a stock of new parts others cant get , and we make the parts you might need that others cant buy - EVER.

We have never released the circuit diagrams of any OA amp - NO ONE ELSE HAS THESE 

We made 1000s of Onix Audio Units, OA21 / OA20 / OA22  Etc yours was one of them

We renovate and restore , we don't just repair 

We know " TV Repair " people say ... Parts don't matter ,  they are all the same !!

If you are ever told this by a repair bod , that parts don't matter in electronics .. Run Away

They say  all amps are the same, so what difference do parts make ?

All amps are the same ? !  All cars are the same !  All houses are the same !  All Repairs are the same !

 All buildings are the same ! all people are the same !!  ..The reality is clear 

Run from the guys that think like this ?

​​​​​​​​​​​​​​​Parts are cheap for a reason - See below 

Identical Transistors ...Everything is not equal www.oa21.com

35 Years old and this is after our renovation service in 2025

ONIX OA21 Renovation done in 2025 from 1984

© OA21 Ltd - www.ONIX-AUDIO.com - www.OA21.com

Corporate Office - Unsolicited mail not accepted. 

20-22 Wenlock Road London N1 7GU England © 2025

Copyright is invoiced if reproduced without permission 

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