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Introduction to ARS

Set up by an ex-BBC Broadcast Engineer of 22 years experience ARS offers a wealth of professional experience to the increasing problem of  audio amplifiers having become uneconomic to repair and difficult to find somewhere actually able to repair to a high standard.


Is it worth repairing?

A Mission Cyrus One in faulty condition usually sells for about £45 on ebay in average cosmetic condition. From this Ebay/Paypal fees will typically leave you with about £38. A working secondhand replacement Cyrus One will be in the region of £80 + £15 P&P meaning an outlay of  roughly £65 is required to return to the position of having a working but unserviced amp . This is comparable to typical repair costs so the choice is yours as to whether to keep your own or take the gamble on another secondhand supposedly working model (experience demonstrates that shipping has been the most variable factor as some sellers do not pack equipment properly for safe shipping meaning it arrives with parts of the chassis or anything protruding such as knobs or terminals bent or smashed!)








It covers all labour for fault finding and repair. Additionally it covers the costs of all components used up to a total maximum cost of £35. In practice most repairs  fall inside this limit. The only exceptions may be if the mains transformer or obsolete and expensive output devices have failed or large high grade power supply smoothing capacitors need replacing and in this case you will be contacted first before any repairs proceed. The amplifier is also given a full performance test to ensure it is within manufacturer specification and a soak test into a test load.

Finally it covers the return cost of shipping back to you via courier (to UK mainland only and insured to the average used value)


All repairs use high quality replacement components sourced through authorised distributers and are of equivalent or higher quality than that originally used. This is to avoid the risk of counterfeit semiconductors which are now widely available (often unwittingly) via smaller non authorised outlets and auction sites in particular. This is increasingly  the case for long obsolete semiconductors and where possible ARS will always use a carefully selected tried and tested modern equivalent  in current production which is almost always a better specification than original anyway.


Note that if the internals of your amplifier have been extensively burnt or damaged beyond sensible economic repair (e.g severe PCB damage) then it is unlikely to be considered repairable within the constraints of the fixed price quoted and it will either incur additional costs or be returned unrepaired. This also applies to 'basket cases' purchased off Ebay which have spent most of their life in a damp shed with subsequent internal corrosion to almost everything metal!  ARS do not repair equipment which has non standard circuit modifications as any sort of future repair guarantee cannot be offered in such cases.


In the event of repair not being possible which does occur with a very small percentage of equipment then there is no diagnosis fee and you will simply be charged the cost of courier return.




Yes - for a period of 3 months from the date of receipt the amplifier will be repaired free of charge if the same fault reoccurs causing failure of the same component(s) or due to replacement components fitted. This does not apply if the fault is found to be different from that originally repaired and a fee will be charged in that case (i.e it is not a 3 month warranty covering everything that subsequently goes wrong in your HiFi system!)