Press the Red Button/Box in the right corner -
Ask about SERVICE for your ONIX AUDIO OA21 units
We have to end this service in August 2025 so be quick
August price - 195 euros - 170 GBP including return carriage
We designed them 35 years ago , and we renovate them - good for another 35 years.
With a 100% Success and restoration, to perfection & back to each customer
ONIX AUDIO & OA21 - Q & A Classic SERVICE
use the box to the right to ask anything
We will have to end this service in August 2025 so be quick -
It will end soon so be quick for this last offer of 170 GBP all in .
It impossible to do the job properly for less than we charge , sadly some owners think you can so we have to keep picking up the pieces of bad work that has ruined our great products , so the time has come to close our 25+ service in Aug 2025
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 perfect WITH ORIGINAL ONIX AUDIO NEW PARTS
We compare the finished renovation with sound to the original ONIX AUDIO amps . No one else has the ability do this
Fact is you get what you pay for in electronics, less money mean less - Simple ? OA21 Amps are 30 years old
They ALL need more than just a "Fix " our renovation takes 5 to 7 hrs - there is a reason why !
its a 100% certain something else will shortly follow, its 30+ years old , when you take them apart to repair how often does something break or fail to undo ?
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, or repaired by others .
We have a stock of parts other cant get/buy , and we make the parts you might need that others don't have - EVER.
We have never released the circuit diagrams or build list 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 re-make your amp . NO ONE ELSE CAN or does DO THIS
We hear " TV Repair " people say ... Parts don't matter , they are all the same !!
If you are ever told by a repair bod that parts don't matter in electronics .. NEVER USE THAT PERSON
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 sickness is the same , all buildings are the same ! all people are the same !! ..YOU GET THE PICTURE
Run from the guys that think like this ?
Parts are cheap for a reason - See above
OA21 Ltd T&Cs - Click Here

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