Quality Parts

All signal path caps 4.7uf or lower are replaced by sonically superior film caps, most by Wima
All transistors are made by OnSemi
Electrolytic caps are primarily Nichicon. Panasonic, United Chem-Con and other reputable brands are also employed
Relays are primarily Omron
Trimmer are made by Bourns

All Parts Are Procured Directly through the Manufacture or via Authorized Distributors

HIghest Quality
No Counterfeit Parts

Ultimate Receiver Kits include the following*

Replacement caps for every electrolytic or tantalum cap in the unit
Replacement trimmers for critical audio adjustments like bias and dc offset (where applicable)
Replacement Relay
- *Not all units use a relay, not all vintage relays have a modern replacement, and finally not all vintage relays can be ascertained from available data
- Kits are priced accordingly, you can view our parts list to see if your kit includes the relay(s).
Replacement transistors and diodes for those we now know were problematic
- *Not all transistors and diodes are replaced, nor should they be
- Our Parts List shows all the transistors and diodes included

Need a Kit for Something Not Yet Listed? Contact us below

Useful links

Docs & Such

All Parts Lists, Service Manuals, Our Hints and Instructions document and more are housed here. Feel free to make use of anything you can!!!

Questions or Kit Requests? Contact us

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These kits are compiled and ready to go. If you don’t see your model, use the contact form above to request we compile your kit!

SX-424 , SX-434 , SX-450 , SX-535 , SX-550 , SX-5580 , SX-580 ,
SX-6000 , SX-626 , SX-636 , SX-650 , SX-680 , SX-727 , SX-737 , SX-750 , SX-770 , SX-780 ,
SX-828 , SX-838 , SX-850 , SX-880 , SX-939 , SX-950 , SX-980 , SX-990 ,
SX-1010 , SX-1050 , SX-1080 , SX-1250 , SX-1280 , SX-1980 , SX-3700

SX-580

Pioneer Receiver Ultimate Kit