DIVO OV4 Self Fit Kit

Orange Amplification

Price not listed

Never again pay a tech to rebias your amp’s power valves. DIVO OV4 featuring TubeSync technology makes that possible. DIVO (dee vo) OV4 automatically adjusts the bias of your power valves to ensure their full potential is realised. It monitors your amp’s performance and isolates faulty valves during failures, running at half power until the valves can be changed. Experiment with different valves [tubes] in each socket without modifying the amp. DIVO even increases the lifespan of your power valves! Don’t go dead on stage ever again…DIVO makes that possible. Built into an aluminium case about t

Orange Amplification's own words, read from their page.

Buy from Orange AmplificationOut of stock. Price seen 2026-09-05. Affiliate link.

Where this comes from

The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.

UK company
Registered at Companies House as ORANGE MUSIC ELECTRONIC COMPANY LIMITED, number 01289884. Checked 2026-08-29.
Means the business is a British legal entity, not a British-sounding name owned elsewhere. It says nothing about where anything is made.
UK operations
Stated by the company: "From our headquarters in London, UK, to our US office in Atlanta, Georgia, we serve musicians and music lovers alike, delivering unmistakable Orange tone and design to stages, studios, and homes across the world." Source.
Means people employed here, or premises they actually work from. We keep this separate from the company badge because a registered office can be an accountant's spare room, and a company can be registered in Britain while everything it does happens somewhere else. Where we have not looked, we say so rather than assuming.
British-owned
No majority shareholding traced outside the UK. Companies House.
Read from the register of people with significant control, following the chain of holding companies. It does not gate anything: a firm can be made here and owned elsewhere, and that is worth telling you rather than hiding.
Where it is made
The maker doesn't say, so neither do we.
This is about the individual product, not the company. A British firm can sell things made abroad, which is normal and not a criticism. We would rather tell you which is which than average them into a score.