Item Category: Vintage Electronics

Our Ultimate Kit for Marantz Receivers includes everything you need to electronically restore and upgrade your Marantz. This kit includes: 59 Capacitors36 Transistors & Diodes 5 Bourns Trimming Resistors The included filter caps are upgraded in capacitance (from 6,800uf to 10,000uf) and voltage (35v to 50v) which will result in better bass and dynamics. The 2220B used two different relays over it’s lifespan, they are not interchangeable. This kit does not include the relay (and is priced as such) but if you open your unit up and let us know what relay you have, we stock both and will include it for an additional $16.00 if so desired. You can easily ascertain which relay you unit uses. The more common relay has a clear cover while the rare relay has a milky looking cover. If you would like the clear topped relay, we have it available here: https://www.ebay.com/itm/314784802800 Our kits use only the highest quality parts from authorized distributors. These kits save you valuable time and headache in sourcing the parts yourself. Having serviced and restored virtually every Marantz receiver in the past, our kits are accurate and vetted. If you can solder and desolder, consider yourself handy in any other way, and are deliberate and thoughtful, you can do this! Any audio gear over 20 years old can benefit from this procedure. Any unit over 30 years old risks failure of other parts without it. Electrolytic Caps drift and fail with time leading to a less detail, transient response, weak bass and mushy overall sound as well as potential failure leading to costly repair. The sonic difference will likely astound you. Customers consistently tell us how much better their unit sounds after a restoration using our kit. A restored unit also greatly increases its value. We can provide more details on this unit if you’d like. Our documentation isn’t top secret. Parts are separated logically by board. The 2220B used two different relays over it’s lifespan, they are not interchangeable. This kit does not include the relay (and is priced as such) but if you open your unit up and let us know what relay you have, we stock both and will include it for an additional $16.00 if so desired. ________________________________More Details____________________________ Quality PartsAll signal path caps 4.7uf or lower are replaced by sonically superior film caps, most by WimaAll transistors are made by OnSemiElectrolytic caps are primarily Nichicon. Panasonic, United Chem-Con and other reputable brands are also employedNichicon caps used are primarily from the UPW and UKL linePanasonic caps used are primarily from the FC & FR lineRelays are primarily OmronTrimmer are made by BournsAll Parts Are Procured Directly through the Manufacture or via Authorized DistributorsHIghest QualityNo Counterfeit PartsUltimate Kits include the following*Replacement Caps for every electrolytic or tantalum cap in the unit, including tuner sectionsUnless otherwise noted, this includes any off board capacitors including the Filter and Coupling CapsOff Board caps may be smaller in diameter than the originals, our documentation provide a few easy options for installing theseReplacement Trimmers for critical audio adjustments like bias and dc offset (where applicable in amplifiers and receivers). Other Kit supplier do not include these. Replacement Relay where applicable*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 dataKits 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 includedMany units made after around 1982 have few or none of these problematic transistorsIncluded Documentation (PDF format)Our Parts List (separated by board and part type – easy to comprehend)The Service Manual (or at least the schematic if we can’t locate the full service manualOur exclusive and extensive Hints & Instructions DocumentThe Owner’s Manual (if available)The Kit Parts are separated and bagged by boardShipped promptly in quality boxesDocumentation links are sent via message, email and included in the kitNeed a Kit for Something Not Yet Listed?Have Questions?Contact us